Re: [expert] how to set routing at boot? [SOLVED]
Problem was that the FORWARD_IPV4 variable, which used to be set in the /etc/sysconfig/network script, got unset somehow... Everything is fine now Hans On Sun, 2003-06-29 at 00:29, SainTiss wrote: Ok, anyway, I've tried to change the IP addresses now so that they are in different subnets, but that doesn't really seem to help... pinging between the 2 client pc's doesn't even work anymore now... This is the config: gateway (192.168.0.1 and 192.168.1.1): Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.1.0 0.0.0.0 255.255.255.0 U 0 00 eth2 192.168.0.0 0.0.0.0 255.255.255.0 U 0 00 eth1 213.118.248.0 0.0.0.0 255.255.252.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 213.118.248.1 0.0.0.0 UG0 00 eth0 client 192.168.0.2: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.0.0 0.0.0.0 255.255.255.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 192.168.0.1 0.0.0.0 UG0 00 eth0 client 192.168.1.2: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.1.0 0.0.0.0 255.255.255.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 192.168.1.1 0.0.0.0 UG0 00 eth0 I'd think this is supposed to work, no? Any ideas as to what is wrong with this setup? Thanks, Hans On Sat, 2003-06-28 at 21:59, Steven Broos wrote: Quick lesson in subnetworking, because I think the problem isn't your IPtables-settings but your network layout. 192.168.0.x is a class C network address. 192.168.0 is the network address, and the last number is the host-portion of the address. If all PCs have an address beginning with 192.168.0 and a netmask of 255.255.255.0 they are on the same subnet, and don't need routing. If you need to separate your LAN into difefrent subnets, use 192.168.0.x and 192.168.1.x etc... Creating a subnet with mask 255.255.255.255 isn't possible, because that way you don't have any broadcast/network-addresses. If you think this goes into the right direction, please give more details about your LAN and ask for more information :-) regards, Steven (CCNA) On Sat, 2003-06-28 at 20:47, SainTiss wrote: Well, what I *need* e.g. on the gateway is something like this: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.0.3 0.0.0.0 255.255.255.255 UH0 00 eth2 192.168.0.2 0.0.0.0 255.255.255.255 UH0 00 eth1 213.118.248.0 0.0.0.0 255.255.252.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 213.118.248.1 0.0.0.0 UG0 00 eth0 However, by default those upper 2 rules aren't there, and instead there's a rule like this: 192.168.0.0 0.0.0.0 255.255.255.0 U0 0 0 eth2 So in other words, by default ALL LAN traffic is routed through eth2, while obviously traffic with 192.168.0.2 should be routed via eth1. Did that make it any clearer? Thanks, Hans On Sat, 2003-06-28 at 20:18, Bill Mullen wrote: On Sat, 28 Jun 2003, SainTiss wrote: I just changed my network configs here, and it seems the routing table got messed up... I know the solution (ie adding some rules and deleting some), but I was wondering if there was some file or something where I could specify the right rules, so that the table is setup correctly at boot? what's the default way to do this? I'm guessing some file which is then processed by ifup or something, but I'm not sure... Depends on what's messed up. :) Most settings draw on the information in the /etc/sysconfig directory, specifically the network file and the various ifcfg-interface ones in the network-scripts subdirectory. For simpler setups, these are all you'll need to adjust, but we have no idea how complicated your normal routing table actually is ... care to offer a hint? ;) __ Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com -- In a world without walls and fences, who needs windows and gates? Is the essence that the light pulse lives longer? Hans Schippers 1LIC INF
Re: [expert] how to set routing at boot?
Hi SainTiss, I am trying to work out what you are trying to do.. Sounds like your trying to route a live range through a private IP address range. 213.118.248.0 0.0.0.0 255.255.252.0 U 0 00 eth0 Do you really have a live Subneted B-class or 8 C-classes, I suspect that your ISP would have only given you a 213.118.248.0/29 or 213.118.248.0/255.255.255.248 or a range of .1-.6 leaving the .0 for Network address and .7 for Broadcast. O.K. where one can configure the extra needed static routes is via the /etc/sysconfig/networking/devices/eth0.route or the eth1.route etc.. depending which interface you are binding your routes to. Have a look at the script /etc/sysconfig/network-scripts/ifup-routes that may give you a hint what's going on. Cheers Mark Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] how to set routing at boot?
On Sat, 2003-06-28 at 23:29, SainTiss wrote: Ok, anyway, I've tried to change the IP addresses now so that they are in different subnets, but that doesn't really seem to help... pinging between the 2 client pc's doesn't even work anymore now... This is the config: gateway (192.168.0.1 and 192.168.1.1): Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.1.0 0.0.0.0 255.255.255.0 U 0 00 eth2 192.168.0.0 0.0.0.0 255.255.255.0 U 0 00 eth1 213.118.248.0 0.0.0.0 255.255.252.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 213.118.248.1 0.0.0.0 UG0 00 eth0 client 192.168.0.2: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.0.0 0.0.0.0 255.255.255.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 192.168.0.1 0.0.0.0 UG0 00 eth0 the gateway address should be the address of the router on both machines client 192.168.1.2: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.1.0 0.0.0.0 255.255.255.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 192.168.1.1 0.0.0.0 UG0 00 eth0 192.168.0.1 I'd think this is supposed to work, no? Any ideas as to what is wrong with this setup? Thanks, Hans On Sat, 2003-06-28 at 21:59, Steven Broos wrote: Quick lesson in subnetworking, because I think the problem isn't your IPtables-settings but your network layout. 192.168.0.x is a class C network address. 192.168.0 is the network address, and the last number is the host-portion of the address. If all PCs have an address beginning with 192.168.0 and a netmask of 255.255.255.0 they are on the same subnet, and don't need routing. If you need to separate your LAN into difefrent subnets, use 192.168.0.x and 192.168.1.x etc... Creating a subnet with mask 255.255.255.255 isn't possible, because that way you don't have any broadcast/network-addresses. If you think this goes into the right direction, please give more details about your LAN and ask for more information :-) regards, Steven (CCNA) On Sat, 2003-06-28 at 20:47, SainTiss wrote: Well, what I *need* e.g. on the gateway is something like this: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.0.3 0.0.0.0 255.255.255.255 UH0 00 eth2 192.168.0.2 0.0.0.0 255.255.255.255 UH0 00 eth1 213.118.248.0 0.0.0.0 255.255.252.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 213.118.248.1 0.0.0.0 UG0 00 eth0 However, by default those upper 2 rules aren't there, and instead there's a rule like this: 192.168.0.0 0.0.0.0 255.255.255.0 U0 0 0 eth2 So in other words, by default ALL LAN traffic is routed through eth2, while obviously traffic with 192.168.0.2 should be routed via eth1. Did that make it any clearer? Thanks, Hans On Sat, 2003-06-28 at 20:18, Bill Mullen wrote: On Sat, 28 Jun 2003, SainTiss wrote: I just changed my network configs here, and it seems the routing table got messed up... I know the solution (ie adding some rules and deleting some), but I was wondering if there was some file or something where I could specify the right rules, so that the table is setup correctly at boot? what's the default way to do this? I'm guessing some file which is then processed by ifup or something, but I'm not sure... Depends on what's messed up. :) Most settings draw on the information in the /etc/sysconfig directory, specifically the network file and the various ifcfg-interface ones in the network-scripts subdirectory. For simpler setups, these are all you'll need to adjust, but we have no idea how complicated your normal routing table actually is ... care to offer a hint? ;) __ Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com -- richard bown [EMAIL PROTECTED] Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] how to set routing at boot?
On Sat, 29 Jun 2003, SainTiss wrote: Ok, anyway, I've tried to change the IP addresses now so that they are in different subnets, but that doesn't really seem to help... pinging between the 2 client pc's doesn't even work anymore now... This is the config: gateway (192.168.0.1 and 192.168.1.1): Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.1.0 0.0.0.0 255.255.255.0 U 0 00 eth2 192.168.0.0 0.0.0.0 255.255.255.0 U 0 00 eth1 213.118.248.0 0.0.0.0 255.255.252.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 213.118.248.1 0.0.0.0 UG0 00 eth0 client 192.168.0.2: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.0.0 0.0.0.0 255.255.255.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 192.168.0.1 0.0.0.0 UG0 00 eth0 client 192.168.1.2: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.1.0 0.0.0.0 255.255.255.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 192.168.1.1 0.0.0.0 UG0 00 eth0 I'd think this is supposed to work, no? Any ideas as to what is wrong with this setup? Well, as for the pinging problem, do you have IP forwarding turned on? In the /etc/sysconfig/network file: FORWARD_IPV4=true Once the network service is restarted, they should see each other again. If you expect these other systems to have access to the WAN by way of this machine, however, you'll need to set up NAT, which is done using iptables (usually, by way of an iptables configuration front-end such as guarddog, firestarter, Bastille, or the Mandrake Control Center's applet, which uses the shorewall system). You can also set up your iptables rules manually, if you're so inclined, and use the iptables app itself to save them and to load them. Check the iptables man page, and such 'net resources as the Linux Documentation Project's HOWTOs and the home pages for the netfilter project (which includes iptables) and for shorewall. http://www.tldp.org/HOWTO/HOWTO-INDEX/networking.html http://www.netfilter.org http://www.shorewall.net -- Bill Mullen [EMAIL PROTECTED] MA, USA RLU #270075 MDK 8.1 9.0 The engineer is neither optimist nor pessimist. He sees the proverbial half-full/empty glass and says, The glass is twice as big as there is any need for it to be. Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
[expert] how to set routing at boot?
Hi, I just changed my network configs here, and it seems the routing table got messed up... I know the solution (ie adding some rules and deleting some), but I was wondering if there was some file or something where I could specify the right rules, so that the table is setup correctly at boot? what's the default way to do this? I'm guessing some file which is then processed by ifup or something, but I'm not sure... Thanks, Hans -- In a world without walls and fences, who needs windows and gates? Is the essence that the light pulse lives longer? Hans Schippers 1LIC INF UIA 2002-2003 signature.asc Description: This is a digitally signed message part
Re: [expert] how to set routing at boot?
On Sat, 28 Jun 2003, SainTiss wrote: I just changed my network configs here, and it seems the routing table got messed up... I know the solution (ie adding some rules and deleting some), but I was wondering if there was some file or something where I could specify the right rules, so that the table is setup correctly at boot? what's the default way to do this? I'm guessing some file which is then processed by ifup or something, but I'm not sure... Depends on what's messed up. :) Most settings draw on the information in the /etc/sysconfig directory, specifically the network file and the various ifcfg-interface ones in the network-scripts subdirectory. For simpler setups, these are all you'll need to adjust, but we have no idea how complicated your normal routing table actually is ... care to offer a hint? ;) -- Bill Mullen [EMAIL PROTECTED] MA, USA RLU #270075 MDK 8.1 9.0 The engineer is neither optimist nor pessimist. He sees the proverbial half-full/empty glass and says, The glass is twice as big as there is any need for it to be. Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] how to set routing at boot?
Well, what I *need* e.g. on the gateway is something like this: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.0.3 0.0.0.0 255.255.255.255 UH0 00 eth2 192.168.0.2 0.0.0.0 255.255.255.255 UH0 00 eth1 213.118.248.0 0.0.0.0 255.255.252.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 213.118.248.1 0.0.0.0 UG0 00 eth0 However, by default those upper 2 rules aren't there, and instead there's a rule like this: 192.168.0.0 0.0.0.0 255.255.255.0 U0 0 0 eth2 So in other words, by default ALL LAN traffic is routed through eth2, while obviously traffic with 192.168.0.2 should be routed via eth1. Did that make it any clearer? Thanks, Hans On Sat, 2003-06-28 at 20:18, Bill Mullen wrote: On Sat, 28 Jun 2003, SainTiss wrote: I just changed my network configs here, and it seems the routing table got messed up... I know the solution (ie adding some rules and deleting some), but I was wondering if there was some file or something where I could specify the right rules, so that the table is setup correctly at boot? what's the default way to do this? I'm guessing some file which is then processed by ifup or something, but I'm not sure... Depends on what's messed up. :) Most settings draw on the information in the /etc/sysconfig directory, specifically the network file and the various ifcfg-interface ones in the network-scripts subdirectory. For simpler setups, these are all you'll need to adjust, but we have no idea how complicated your normal routing table actually is ... care to offer a hint? ;) -- In a world without walls and fences, who needs windows and gates? Is the essence that the light pulse lives longer? Hans Schippers 1LIC INF UIA 2002-2003 signature.asc Description: This is a digitally signed message part
Re: [expert] how to set routing at boot?
Quick lesson in subnetworking, because I think the problem isn't your IPtables-settings but your network layout. 192.168.0.x is a class C network address. 192.168.0 is the network address, and the last number is the host-portion of the address. If all PCs have an address beginning with 192.168.0 and a netmask of 255.255.255.0 they are on the same subnet, and don't need routing. If you need to separate your LAN into difefrent subnets, use 192.168.0.x and 192.168.1.x etc... Creating a subnet with mask 255.255.255.255 isn't possible, because that way you don't have any broadcast/network-addresses. If you think this goes into the right direction, please give more details about your LAN and ask for more information :-) regards, Steven (CCNA) On Sat, 2003-06-28 at 20:47, SainTiss wrote: Well, what I *need* e.g. on the gateway is something like this: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.0.3 0.0.0.0 255.255.255.255 UH0 00 eth2 192.168.0.2 0.0.0.0 255.255.255.255 UH0 00 eth1 213.118.248.0 0.0.0.0 255.255.252.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 213.118.248.1 0.0.0.0 UG0 00 eth0 However, by default those upper 2 rules aren't there, and instead there's a rule like this: 192.168.0.0 0.0.0.0 255.255.255.0 U0 0 0 eth2 So in other words, by default ALL LAN traffic is routed through eth2, while obviously traffic with 192.168.0.2 should be routed via eth1. Did that make it any clearer? Thanks, Hans On Sat, 2003-06-28 at 20:18, Bill Mullen wrote: On Sat, 28 Jun 2003, SainTiss wrote: I just changed my network configs here, and it seems the routing table got messed up... I know the solution (ie adding some rules and deleting some), but I was wondering if there was some file or something where I could specify the right rules, so that the table is setup correctly at boot? what's the default way to do this? I'm guessing some file which is then processed by ifup or something, but I'm not sure... Depends on what's messed up. :) Most settings draw on the information in the /etc/sysconfig directory, specifically the network file and the various ifcfg-interface ones in the network-scripts subdirectory. For simpler setups, these are all you'll need to adjust, but we have no idea how complicated your normal routing table actually is ... care to offer a hint? ;) Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] how to set routing at boot?
HI try adding to rc.local at the end of the file /sbin/route add -host 192.168.0.2 eth1 /sbin/route add -host 192.168.0.3 eth2 HTH Richard On Sat, 2003-06-28 at 20:59, Steven Broos wrote: Quick lesson in subnetworking, because I think the problem isn't your IPtables-settings but your network layout. 192.168.0.x is a class C network address. 192.168.0 is the network address, and the last number is the host-portion of the address. If all PCs have an address beginning with 192.168.0 and a netmask of 255.255.255.0 they are on the same subnet, and don't need routing. If you need to separate your LAN into difefrent subnets, use 192.168.0.x and 192.168.1.x etc... Creating a subnet with mask 255.255.255.255 isn't possible, because that way you don't have any broadcast/network-addresses. If you think this goes into the right direction, please give more details about your LAN and ask for more information :-) regards, Steven (CCNA) On Sat, 2003-06-28 at 20:47, SainTiss wrote: Well, what I *need* e.g. on the gateway is something like this: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.0.3 0.0.0.0 255.255.255.255 UH0 00 eth2 192.168.0.2 0.0.0.0 255.255.255.255 UH0 00 eth1 213.118.248.0 0.0.0.0 255.255.252.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 213.118.248.1 0.0.0.0 UG0 00 eth0 However, by default those upper 2 rules aren't there, and instead there's a rule like this: 192.168.0.0 0.0.0.0 255.255.255.0 U0 0 0 eth2 So in other words, by default ALL LAN traffic is routed through eth2, while obviously traffic with 192.168.0.2 should be routed via eth1. Did that make it any clearer? Thanks, Hans On Sat, 2003-06-28 at 20:18, Bill Mullen wrote: On Sat, 28 Jun 2003, SainTiss wrote: I just changed my network configs here, and it seems the routing table got messed up... I know the solution (ie adding some rules and deleting some), but I was wondering if there was some file or something where I could specify the right rules, so that the table is setup correctly at boot? what's the default way to do this? I'm guessing some file which is then processed by ifup or something, but I'm not sure... Depends on what's messed up. :) Most settings draw on the information in the /etc/sysconfig directory, specifically the network file and the various ifcfg-interface ones in the network-scripts subdirectory. For simpler setups, these are all you'll need to adjust, but we have no idea how complicated your normal routing table actually is ... care to offer a hint? ;) __ Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com -- richard bown [EMAIL PROTECTED] Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] how to set routing at boot?
geddemn forget about my post. Didn't read your mail with my full attention (as most of the time) and again made a stupid post :-) Anyway, you can considder buying a switch or a hub, using one PC as router/firewall between the switch and your cable connection, and connect the other PC's with the switch. I think that would be easier and would increase performance... Steven Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] how to set routing at boot?
Hi, hmm, what are you saying here? I'd basically want all pc's to be in the same subnet, yes... So I should delete all routing rules wrt the LAN? Thanks, Hans On Sat, 2003-06-28 at 21:59, Steven Broos wrote: Quick lesson in subnetworking, because I think the problem isn't your IPtables-settings but your network layout. 192.168.0.x is a class C network address. 192.168.0 is the network address, and the last number is the host-portion of the address. If all PCs have an address beginning with 192.168.0 and a netmask of 255.255.255.0 they are on the same subnet, and don't need routing. If you need to separate your LAN into difefrent subnets, use 192.168.0.x and 192.168.1.x etc... Creating a subnet with mask 255.255.255.255 isn't possible, because that way you don't have any broadcast/network-addresses. If you think this goes into the right direction, please give more details about your LAN and ask for more information :-) regards, Steven (CCNA) On Sat, 2003-06-28 at 20:47, SainTiss wrote: Well, what I *need* e.g. on the gateway is something like this: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.0.3 0.0.0.0 255.255.255.255 UH0 00 eth2 192.168.0.2 0.0.0.0 255.255.255.255 UH0 00 eth1 213.118.248.0 0.0.0.0 255.255.252.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 213.118.248.1 0.0.0.0 UG0 00 eth0 However, by default those upper 2 rules aren't there, and instead there's a rule like this: 192.168.0.0 0.0.0.0 255.255.255.0 U0 0 0 eth2 So in other words, by default ALL LAN traffic is routed through eth2, while obviously traffic with 192.168.0.2 should be routed via eth1. Did that make it any clearer? Thanks, Hans On Sat, 2003-06-28 at 20:18, Bill Mullen wrote: On Sat, 28 Jun 2003, SainTiss wrote: I just changed my network configs here, and it seems the routing table got messed up... I know the solution (ie adding some rules and deleting some), but I was wondering if there was some file or something where I could specify the right rules, so that the table is setup correctly at boot? what's the default way to do this? I'm guessing some file which is then processed by ifup or something, but I'm not sure... Depends on what's messed up. :) Most settings draw on the information in the /etc/sysconfig directory, specifically the network file and the various ifcfg-interface ones in the network-scripts subdirectory. For simpler setups, these are all you'll need to adjust, but we have no idea how complicated your normal routing table actually is ... care to offer a hint? ;) __ Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com -- In a world without walls and fences, who needs windows and gates? Is the essence that the light pulse lives longer? Hans Schippers 1LIC INF UIA 2002-2003 signature.asc Description: This is a digitally signed message part
Re: [expert] how to set routing at boot?
Well, that would work of course, but it's rather ugly don't you think? I'm looking for the way MDK does these things by default.. Must be somewhere in /etc/sysconfig Hans On Sat, 2003-06-28 at 23:12, richard bown wrote: HI try adding to rc.local at the end of the file /sbin/route add -host 192.168.0.2 eth1 /sbin/route add -host 192.168.0.3 eth2 HTH Richard On Sat, 2003-06-28 at 20:59, Steven Broos wrote: Quick lesson in subnetworking, because I think the problem isn't your IPtables-settings but your network layout. 192.168.0.x is a class C network address. 192.168.0 is the network address, and the last number is the host-portion of the address. If all PCs have an address beginning with 192.168.0 and a netmask of 255.255.255.0 they are on the same subnet, and don't need routing. If you need to separate your LAN into difefrent subnets, use 192.168.0.x and 192.168.1.x etc... Creating a subnet with mask 255.255.255.255 isn't possible, because that way you don't have any broadcast/network-addresses. If you think this goes into the right direction, please give more details about your LAN and ask for more information :-) regards, Steven (CCNA) On Sat, 2003-06-28 at 20:47, SainTiss wrote: Well, what I *need* e.g. on the gateway is something like this: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.0.3 0.0.0.0 255.255.255.255 UH0 00 eth2 192.168.0.2 0.0.0.0 255.255.255.255 UH0 00 eth1 213.118.248.0 0.0.0.0 255.255.252.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 213.118.248.1 0.0.0.0 UG0 00 eth0 However, by default those upper 2 rules aren't there, and instead there's a rule like this: 192.168.0.0 0.0.0.0 255.255.255.0 U0 0 0 eth2 So in other words, by default ALL LAN traffic is routed through eth2, while obviously traffic with 192.168.0.2 should be routed via eth1. Did that make it any clearer? Thanks, Hans On Sat, 2003-06-28 at 20:18, Bill Mullen wrote: On Sat, 28 Jun 2003, SainTiss wrote: I just changed my network configs here, and it seems the routing table got messed up... I know the solution (ie adding some rules and deleting some), but I was wondering if there was some file or something where I could specify the right rules, so that the table is setup correctly at boot? what's the default way to do this? I'm guessing some file which is then processed by ifup or something, but I'm not sure... Depends on what's messed up. :) Most settings draw on the information in the /etc/sysconfig directory, specifically the network file and the various ifcfg-interface ones in the network-scripts subdirectory. For simpler setups, these are all you'll need to adjust, but we have no idea how complicated your normal routing table actually is ... care to offer a hint? ;) __ Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com -- In a world without walls and fences, who needs windows and gates? Is the essence that the light pulse lives longer? Hans Schippers 1LIC INF UIA 2002-2003 signature.asc Description: This is a digitally signed message part
Re: [expert] how to set routing at boot?
that would probably be a good solution, but I've got quite a lot of (longish) cables here, and installing a hub would mean I won't be able to use those anymore (coax and such), so I'd really prefer avoiding the install of a switch/hub... Hans On Sat, 2003-06-28 at 22:46, Steven Broos wrote: geddemn forget about my post. Didn't read your mail with my full attention (as most of the time) and again made a stupid post :-) Anyway, you can considder buying a switch or a hub, using one PC as router/firewall between the switch and your cable connection, and connect the other PC's with the switch. I think that would be easier and would increase performance... Steven __ Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com -- In a world without walls and fences, who needs windows and gates? Is the essence that the light pulse lives longer? Hans Schippers 1LIC INF UIA 2002-2003 signature.asc Description: This is a digitally signed message part
Re: [expert] how to set routing at boot?
Well it will work, the big problem is two adjacent addresses on two different interfaces. personally I would have split the subnet in two so that a netmask of x.x.x.0/27 could be used. I had to do similar thing when running a radio ip hub here, where users were linked on different interfaces with each interface using a different frequency.. If there is only 1 machine on each interface it dos'nt matter about broadcast addresses, as there's only 1 machine to broadcast to. So the only way to route is with host routing. Also if adding to rc.local dont forget to delete the default routing /sbin/route del -net 192.168.0.0 netmask 255.255.255.0 eth2 Richard On Sat, 2003-06-28 at 22:00, SainTiss wrote: Well, that would work of course, but it's rather ugly don't you think? I'm looking for the way MDK does these things by default.. Must be somewhere in /etc/sysconfig Hans On Sat, 2003-06-28 at 23:12, richard bown wrote: HI try adding to rc.local at the end of the file /sbin/route add -host 192.168.0.2 eth1 /sbin/route add -host 192.168.0.3 eth2 HTH Richard On Sat, 2003-06-28 at 20:59, Steven Broos wrote: Quick lesson in subnetworking, because I think the problem isn't your IPtables-settings but your network layout. 192.168.0.x is a class C network address. 192.168.0 is the network address, and the last number is the host-portion of the address. If all PCs have an address beginning with 192.168.0 and a netmask of 255.255.255.0 they are on the same subnet, and don't need routing. If you need to separate your LAN into difefrent subnets, use 192.168.0.x and 192.168.1.x etc... Creating a subnet with mask 255.255.255.255 isn't possible, because that way you don't have any broadcast/network-addresses. If you think this goes into the right direction, please give more details about your LAN and ask for more information :-) regards, Steven (CCNA) On Sat, 2003-06-28 at 20:47, SainTiss wrote: Well, what I *need* e.g. on the gateway is something like this: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.0.3 0.0.0.0 255.255.255.255 UH0 00 eth2 192.168.0.2 0.0.0.0 255.255.255.255 UH0 00 eth1 213.118.248.0 0.0.0.0 255.255.252.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 213.118.248.1 0.0.0.0 UG0 00 eth0 However, by default those upper 2 rules aren't there, and instead there's a rule like this: 192.168.0.0 0.0.0.0 255.255.255.0 U0 0 0 eth2 So in other words, by default ALL LAN traffic is routed through eth2, while obviously traffic with 192.168.0.2 should be routed via eth1. Did that make it any clearer? Thanks, Hans On Sat, 2003-06-28 at 20:18, Bill Mullen wrote: On Sat, 28 Jun 2003, SainTiss wrote: I just changed my network configs here, and it seems the routing table got messed up... I know the solution (ie adding some rules and deleting some), but I was wondering if there was some file or something where I could specify the right rules, so that the table is setup correctly at boot? what's the default way to do this? I'm guessing some file which is then processed by ifup or something, but I'm not sure... Depends on what's messed up. :) Most settings draw on the information in the /etc/sysconfig directory, specifically the network file and the various ifcfg-interface ones in the network-scripts subdirectory. For simpler setups, these are all you'll need to adjust, but we have no idea how complicated your normal routing table actually is ... care to offer a hint? ;) __ Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com -- richard bown [EMAIL PROTECTED] Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
Re: [expert] how to set routing at boot?
Ok, anyway, I've tried to change the IP addresses now so that they are in different subnets, but that doesn't really seem to help... pinging between the 2 client pc's doesn't even work anymore now... This is the config: gateway (192.168.0.1 and 192.168.1.1): Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.1.0 0.0.0.0 255.255.255.0 U 0 00 eth2 192.168.0.0 0.0.0.0 255.255.255.0 U 0 00 eth1 213.118.248.0 0.0.0.0 255.255.252.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 213.118.248.1 0.0.0.0 UG0 00 eth0 client 192.168.0.2: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.0.0 0.0.0.0 255.255.255.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 192.168.0.1 0.0.0.0 UG0 00 eth0 client 192.168.1.2: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.1.0 0.0.0.0 255.255.255.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 192.168.1.1 0.0.0.0 UG0 00 eth0 I'd think this is supposed to work, no? Any ideas as to what is wrong with this setup? Thanks, Hans On Sat, 2003-06-28 at 21:59, Steven Broos wrote: Quick lesson in subnetworking, because I think the problem isn't your IPtables-settings but your network layout. 192.168.0.x is a class C network address. 192.168.0 is the network address, and the last number is the host-portion of the address. If all PCs have an address beginning with 192.168.0 and a netmask of 255.255.255.0 they are on the same subnet, and don't need routing. If you need to separate your LAN into difefrent subnets, use 192.168.0.x and 192.168.1.x etc... Creating a subnet with mask 255.255.255.255 isn't possible, because that way you don't have any broadcast/network-addresses. If you think this goes into the right direction, please give more details about your LAN and ask for more information :-) regards, Steven (CCNA) On Sat, 2003-06-28 at 20:47, SainTiss wrote: Well, what I *need* e.g. on the gateway is something like this: Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.0.3 0.0.0.0 255.255.255.255 UH0 00 eth2 192.168.0.2 0.0.0.0 255.255.255.255 UH0 00 eth1 213.118.248.0 0.0.0.0 255.255.252.0 U 0 00 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 00 lo 0.0.0.0 213.118.248.1 0.0.0.0 UG0 00 eth0 However, by default those upper 2 rules aren't there, and instead there's a rule like this: 192.168.0.0 0.0.0.0 255.255.255.0 U0 0 0 eth2 So in other words, by default ALL LAN traffic is routed through eth2, while obviously traffic with 192.168.0.2 should be routed via eth1. Did that make it any clearer? Thanks, Hans On Sat, 2003-06-28 at 20:18, Bill Mullen wrote: On Sat, 28 Jun 2003, SainTiss wrote: I just changed my network configs here, and it seems the routing table got messed up... I know the solution (ie adding some rules and deleting some), but I was wondering if there was some file or something where I could specify the right rules, so that the table is setup correctly at boot? what's the default way to do this? I'm guessing some file which is then processed by ifup or something, but I'm not sure... Depends on what's messed up. :) Most settings draw on the information in the /etc/sysconfig directory, specifically the network file and the various ifcfg-interface ones in the network-scripts subdirectory. For simpler setups, these are all you'll need to adjust, but we have no idea how complicated your normal routing table actually is ... care to offer a hint? ;) __ Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com -- In a world without walls and fences, who needs windows and gates? Is the essence that the light pulse lives longer? Hans Schippers 1LIC INF UIA 2002-2003 signature.asc Description: This is a digitally signed message part
