Re: [gentoo-user] sub-net 0.0.0.0 [SOLVED]
On Sat, 2005-08-27 at 23:35 -0600, Joseph wrote: > On Sat, 2005-08-27 at 10:23 +0100, Neil Bothwick wrote: > > On Fri, 26 Aug 2005 17:20:12 -0600, Joseph wrote: > > > > > Is there a way to check what IP the device has on the network? > > > I know the device MAC address and when I plug it IN, it obtains one of > > > the IP via DHCP. With > > > arp -a IP > > > arp -e > > > I can only check the MAC address. Is there a way to other way around. > > > > Try arp -a > > Very closed. but better yet is: > Knowing MAC address but looking for IP > tcpdump -e -i eth0 |grep -i "00:09:45:52:04:da" > Since I know the MAC address, the above command will capture the IP > address of the device when plugged into the server. > > Knowing IP address but looking for MAC > ping IP > arp -e of course arp will only work if the device has actually done anything on the network within arp's cache period. I just tried arp -a and found my wireless AP did not appear in the list, probably because I haven't used wireless for a few days. I pinged the (known) address and then tried again and it showed up. > > -- > #Joseph -- Nick Rout <[EMAIL PROTECTED]> -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0 [SOLVED]
On Sat, 2005-08-27 at 10:23 +0100, Neil Bothwick wrote: > On Fri, 26 Aug 2005 17:20:12 -0600, Joseph wrote: > > > Is there a way to check what IP the device has on the network? > > I know the device MAC address and when I plug it IN, it obtains one of > > the IP via DHCP. With > > arp -a IP > > arp -e > > I can only check the MAC address. Is there a way to other way around. > > Try arp -a Very closed. but better yet is: Knowing MAC address but looking for IP tcpdump -e -i eth0 |grep -i "00:09:45:52:04:da" Since I know the MAC address, the above command will capture the IP address of the device when plugged into the server. Knowing IP address but looking for MAC ping IP arp -e -- #Joseph -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
On Fri, 26 Aug 2005 17:20:12 -0600, Joseph wrote: > Is there a way to check what IP the device has on the network? > I know the device MAC address and when I plug it IN, it obtains one of > the IP via DHCP. With > arp -a IP > arp -e > I can only check the MAC address. Is there a way to other way around. Try arp -a -- Neil Bothwick Never underestimate the bandwidth of a station wagon full of tapes! pgpQHNFbfv8Nz.pgp Description: PGP signature
Re: [gentoo-user] sub-net 0.0.0.0
This seems to be similar to the dlink adsl modem I am using (no routing function). Think of the 192.168.0.0 network as being the network between the modem and the gateway machine. In my case, the 10. (equiv) networks are on the internal side of the gateway. My gateway machine runs dhcp on eth0 (the 192.168.0.0/24 network). When the adsl modem is unlocked, I get a 192.168.0.2 address from the adsl modem. When locked, the 192.168.0.2 is replaced by the ISP allocated address. The default gateway then becomes the *ISP end* (far) of the adsl connection, and is normally set by dhcp on your gateway machine. The modem web server is always reachable via 192.168.0.1, even after the ISP allocated addresses/gateway are set. In my case 1) ISP -> unlocked -> adsl modem -> 192.168.0.1 -> 192.168.0.2 ->gateway -> 192.168.1.x 2) ISP -> x.x.x.x -> adsl modem -> x.x.x.(x-1) -> gateway -> 192.168.1.x || -> 192.168.0.1 -> Edited route -n for my gateway: 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 eth1 192.168.43.00.0.0.0 255.255.255.0 U 0 00 eth2 x.x.x.00.0.0.0 255.255.255.0 U 0 00 eth0 127.0.0.0 127.0.0.1 255.0.0.0 UG0 00 lo 0.0.0.0 x.x.x.21 0.0.0.0 UG0 00 eth0 the .43 is a wireless network the x.x.x.x is my ISP dhcp allocated IP as set by dhcp running on my gateway. I would steer clear of adding anything else to the 192.168.0.0/24 network as (in my case) things dont always work as expected (with an accidental misconfiguration, I ended up with "wild" packets present on my internal network). BillK On Fri, 2005-08-26 at 17:20 -0600, Joseph wrote: > On Fri, 2005-08-26 at 19:04 -0300, José Pablo Ezequiel Fernández wrote: > > > > Try this: > > > > > > ... -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
On Fri, 2005-08-26 at 15:56 -0600, Joseph wrote: > On Sat, 2005-08-27 at 08:34 +1200, Nick Rout wrote: > > > > Try this: > > > > on your desktop, which normally has a 10.0.0.x address, add a virtual > > entry for eth0, in other words give it another IP address in the > > subnet > > needed by the other device: > > > > something like: > > > > ifconfig eth0:1 192.168.0.10 up > > > > and you should be able to communicate directly with the device. > > > > Thanks Nick, this sounds interesting. > > To which file /etc/confg.d/net ? yes (actually /etc/conf.d/net - you made a typo- and see net.examples in the same directory) if you only need to do it once in order to change the config on the device then there is no need to put it in the config file, just do it on the command line as per my original message. If you want to do it on every boot /etc/conf.d/net is the place. > > -- > #Joseph -- Nick Rout <[EMAIL PROTECTED]> -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
On Fri, 2005-08-26 at 18:32 -0500, Jonathan A. Kollasch wrote: > > Ethereal's CLI counterpart is tcpdump, (you can use tcpdump to make > capture > files for Ethereal) you could also look in your dhcpd's lease file, or > see if > it responds to a ping to 224.0.0.1. Yes, that was the missing puzzle. I just need to learn how to use it more efficient than: tcpdump -i eth0 -- #Joseph -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
On Friday 26 August 2005 06:20 pm, Joseph wrote: > Is there a way to check what IP the device has on the network? > I know the device MAC address and when I plug it IN, it obtains one of > the IP via DHCP. With > arp -a IP > arp -e > I can only check the MAC address. Is there a way to other way around. > > I know ethereal will capture the IP address, but I was wandering if > there is any command line tool. Ethereal's CLI counterpart is tcpdump, (you can use tcpdump to make capture files for Ethereal) you could also look in your dhcpd's lease file, or see if it responds to a ping to 224.0.0.1. Jonathan Kollasch -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
On Fri, 2005-08-26 at 19:04 -0300, José Pablo Ezequiel Fernández wrote: > > > Try this: > > > > > > on your desktop, which normally has a 10.0.0.x address, add a > virtual > > > entry for eth0, in other words give it another IP address in the > > > subnet > > > needed by the other device: > > > > > > something like: > > > > > > ifconfig eth0:1 192.168.0.10 up > > > > > > and you should be able to communicate directly with the device. > > > > Thanks Nick, this sounds interesting. > > > > To which file /etc/confg.d/net ? > That line is for running on the command line as root, > for /etc/conf.d/net, a > similar one would have the same efect (check the file, it has comments > about > it). Will definitely add this command to my book. It is so easy and I can't believe it. It worked like a charm. Is there a way to check what IP the device has on the network? I know the device MAC address and when I plug it IN, it obtains one of the IP via DHCP. With arp -a IP arp -e I can only check the MAC address. Is there a way to other way around. I know ethereal will capture the IP address, but I was wandering if there is any command line tool. -- #Joseph -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
On Friday 26 August 2005 18:56, Joseph wrote: > On Sat, 2005-08-27 at 08:34 +1200, Nick Rout wrote: > > Try this: > > > > on your desktop, which normally has a 10.0.0.x address, add a virtual > > entry for eth0, in other words give it another IP address in the > > subnet > > needed by the other device: > > > > something like: > > > > ifconfig eth0:1 192.168.0.10 up > > > > and you should be able to communicate directly with the device. > > Thanks Nick, this sounds interesting. > > To which file /etc/confg.d/net ? That line is for running on the command line as root, for /etc/conf.d/net, a similar one would have the same efect (check the file, it has comments about it). -- José Pablo Ezequiel Fernández -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
On Sat, 2005-08-27 at 08:34 +1200, Nick Rout wrote: > > Try this: > > on your desktop, which normally has a 10.0.0.x address, add a virtual > entry for eth0, in other words give it another IP address in the > subnet > needed by the other device: > > something like: > > ifconfig eth0:1 192.168.0.10 up > > and you should be able to communicate directly with the device. > Thanks Nick, this sounds interesting. To which file /etc/confg.d/net ? -- #Joseph -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
On Fri, 2005-08-26 at 11:50 -0600, Joseph wrote: > On Fri, 2005-08-26 at 13:38 -0400, Willie Wong wrote: > > On Fri, Aug 26, 2005 at 10:02:08AM -0600, Joseph wrote: > > > I have a device with an IP 192.168.0.1 which I need to access via > > > browser. > > > My PC gets an IP via DHCP from the router. > > > What should I use for gateway? I've tired 192.168.0.0 192.168.0 > > > > huh? if you get the IP via DHCP, doesn't it also set up the gateway? > > No, I set my firewall/router with my numbers. My main network is set to > Gateway 10.0.0.1 and DHCP pool range (so other devices an get the IP > automatically) is 10.0.0.150 - 10.0.0.180 > > But the deice I have has a preset from the factory static IP 192.168.0.1 > If they set it to anything else like 192.168.0.10 or 192.168.0.100 it > would be easy. > I could set my gateway to 192.168.0.1 and DHCP pool range to > 192.168.0.10 to 192.168.0.100 and it would work. > > When I try to set my gateway to 192.168.0.0 my DHCP pool range > 192.168.0.1 to 192.168.0.100 doesn't work. > > I'm using PC base firewall freesco. Try this: on your desktop, which normally has a 10.0.0.x address, add a virtual entry for eth0, in other words give it another IP address in the subnet needed by the other device: something like: ifconfig eth0:1 192.168.0.10 up and you should be able to communicate directly with the device. > -- > #Joseph -- Nick Rout <[EMAIL PROTECTED]> -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
[snip] > Not sure what hardware you have around, but if you don't have a > crossover cable do you at least have a hub or switch? If you do, just > disable DHCP temporarilly on your PC and manually set the IP address to > 192.168.0.2, set the gateway to 192.168.0.1 and netmask to 255.255.255.0 > and plug the PC and router device into the same hub/switch. This method > has worked for me in the past when I have a router with a preset address > that needed to be changed. You are right, setting the gateway to anything that 192.168.0.1 solved the problem like 192.168.0.2. I can not have the gateway set to 192.168.0.1 as the device I'm trying to access is hard coded to this IP. In addition somebody recommend setting the sub-net to 0.0.0.0 which didn't work for me. -- #Joseph -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
Joseph wrote: On Fri, 2005-08-26 at 13:38 -0400, Willie Wong wrote: On Fri, Aug 26, 2005 at 10:02:08AM -0600, Joseph wrote: I have a device with an IP 192.168.0.1 which I need to access via browser. My PC gets an IP via DHCP from the router. What should I use for gateway? I've tired 192.168.0.0 192.168.0 huh? if you get the IP via DHCP, doesn't it also set up the gateway? No, I set my firewall/router with my numbers. My main network is set to Gateway 10.0.0.1 and DHCP pool range (so other devices an get the IP automatically) is 10.0.0.150 - 10.0.0.180 But the deice I have has a preset from the factory static IP 192.168.0.1 If they set it to anything else like 192.168.0.10 or 192.168.0.100 it would be easy. This is a little confusing to me - is there something special about IP 192.168.0.1 compared to any other IP? I could set my gateway to 192.168.0.1 and DHCP pool range to 192.168.0.10 to 192.168.0.100 and it would work. When I try to set my gateway to 192.168.0.0 my DHCP pool range 192.168.0.1 to 192.168.0.100 doesn't work. Not sure what hardware you have around, but if you don't have a crossover cable do you at least have a hub or switch? If you do, just disable DHCP temporarilly on your PC and manually set the IP address to 192.168.0.2, set the gateway to 192.168.0.1 and netmask to 255.255.255.0 and plug the PC and router device into the same hub/switch. This method has worked for me in the past when I have a router with a preset address that needed to be changed. -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
On Fri, 2005-08-26 at 14:23 -0400, Willie Wong wrote: > On Fri, Aug 26, 2005 at 11:50:29AM -0600, Joseph wrote: > > No, I set my firewall/router with my numbers. My main network is set to > > Gateway 10.0.0.1 and DHCP pool range (so other devices an get the IP > > automatically) is 10.0.0.150 - 10.0.0.180 > > Okay, so far I follow you. You have a main network. The Gateway is at > 10.0.0.1, presumably that is also where the router/dhcp server lives? > Is this the network where your PC is on? Sorry for the confusion. Yes, I have to networks one main and second backup network. So my main network (gateway) is 10.0.0.1 and this is the network I want that device to be on (it is an ATA phone adapter 4xFXS). [snip] > So hold on a second. I am lost. Are you dealing with a second separate > network? What kind of device are you speaking of? If you set the > gateway to 192.168.0.1 doesn't it conflict with the device? > > > > > When I try to set my gateway to 192.168.0.0 my DHCP pool range > > 192.168.0.1 to 192.168.0.100 doesn't work. > > > > uh... I am pretty sure octet 0 is reserved for the last word? I.e. > valid IP addresses run from *.*.*.1 to *.*.*.254? Yes, that is was causing me confusion. But I solve it. I set my backup network (in order to access the device via browser) to Gateway 192.168.0.05 (last digits anything lower than 1) and DHCP pool range to 192.168.0.2 to 192.168.0.20 > 192.168.0.0 refers actually to the network and not any particular > machines, and 192.168.0.255 is the broadcast address for the > 192.168.0.0 network > > Can't you move the gateway to something like 192.168.0.254 with the > DHCP range 192.168.0.2 to 192.168.0.180? Since you have a device > hardcoded to be 192.168.0.1 you should leave it out of the DHCP range. Thank you for the explanation. You understood it correctly. > > Unless, of course, I am completely misunderstanding your post. If that > is the case, post an ascii diagram or something of what the network > looks like. I've change the Lan Setting on that ATA device to DHCP and assign the static IP to 10.0.0.111 and I can access it now. -- #Joseph -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
On Fri, 26 Aug 2005 11:50:29 -0600, Joseph wrote: > No, I set my firewall/router with my numbers. My main network is set to > Gateway 10.0.0.1 and DHCP pool range (so other devices an get the IP > automatically) is 10.0.0.150 - 10.0.0.180 > > But the deice I have has a preset from the factory static IP 192.168.0.1 > If they set it to anything else like 192.168.0.10 or 192.168.0.100 it > would be easy. > I could set my gateway to 192.168.0.1 and DHCP pool range to > 192.168.0.10 to 192.168.0.100 and it would work. Set your gateway to 192.168.0.2 and it will still work. Or leave your addressing as it is and set up a route to 192.168.0.1 that does not go through your gateway. -- Neil Bothwick UNIX is the OS of the future and always will be... pgp2z8ldvbLsr.pgp Description: PGP signature
Re: [gentoo-user] sub-net 0.0.0.0
On Fri, 26 Aug 2005, Joseph wrote: > I could set my gateway to 192.168.0.1 and DHCP pool range to > 192.168.0.10 to 192.168.0.100 and it would work. Yes, you might need to do this temporarily until you change the IP of the device to what you normally use, then you can switch back afterwards. -- -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
On Fri, Aug 26, 2005 at 11:50:29AM -0600, Joseph wrote: > No, I set my firewall/router with my numbers. My main network is set to > Gateway 10.0.0.1 and DHCP pool range (so other devices an get the IP > automatically) is 10.0.0.150 - 10.0.0.180 Okay, so far I follow you. You have a main network. The Gateway is at 10.0.0.1, presumably that is also where the router/dhcp server lives? Is this the network where your PC is on? > > But the deice I have has a preset from the factory static IP 192.168.0.1 > If they set it to anything else like 192.168.0.10 or 192.168.0.100 it > would be easy. I agree. > I could set my gateway to 192.168.0.1 and DHCP pool range to > 192.168.0.10 to 192.168.0.100 and it would work. So hold on a second. I am lost. Are you dealing with a second separate network? What kind of device are you speaking of? If you set the gateway to 192.168.0.1 doesn't it conflict with the device? > > When I try to set my gateway to 192.168.0.0 my DHCP pool range > 192.168.0.1 to 192.168.0.100 doesn't work. > uh... I am pretty sure octet 0 is reserved for the last word? I.e. valid IP addresses run from *.*.*.1 to *.*.*.254? 192.168.0.0 refers actually to the network and not any particular machines, and 192.168.0.255 is the broadcast address for the 192.168.0.0 network Can't you move the gateway to something like 192.168.0.254 with the DHCP range 192.168.0.2 to 192.168.0.180? Since you have a device hardcoded to be 192.168.0.1 you should leave it out of the DHCP range. Unless, of course, I am completely misunderstanding your post. If that is the case, post an ascii diagram or something of what the network looks like. W -- Black holes are where God divided by zero. Sortir en Pantoufles: up 14 days, 21:17 -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
On Fri, 2005-08-26 at 13:38 -0400, Willie Wong wrote: > On Fri, Aug 26, 2005 at 10:02:08AM -0600, Joseph wrote: > > I have a device with an IP 192.168.0.1 which I need to access via > > browser. > > My PC gets an IP via DHCP from the router. > > What should I use for gateway? I've tired 192.168.0.0 192.168.0 > > huh? if you get the IP via DHCP, doesn't it also set up the gateway? No, I set my firewall/router with my numbers. My main network is set to Gateway 10.0.0.1 and DHCP pool range (so other devices an get the IP automatically) is 10.0.0.150 - 10.0.0.180 But the deice I have has a preset from the factory static IP 192.168.0.1 If they set it to anything else like 192.168.0.10 or 192.168.0.100 it would be easy. I could set my gateway to 192.168.0.1 and DHCP pool range to 192.168.0.10 to 192.168.0.100 and it would work. When I try to set my gateway to 192.168.0.0 my DHCP pool range 192.168.0.1 to 192.168.0.100 doesn't work. I'm using PC base firewall freesco. -- #Joseph -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
On Fri, Aug 26, 2005 at 10:02:08AM -0600, Joseph wrote: > I have a device with an IP 192.168.0.1 which I need to access via > browser. > My PC gets an IP via DHCP from the router. > What should I use for gateway? I've tired 192.168.0.0 192.168.0 huh? if you get the IP via DHCP, doesn't it also set up the gateway? in any case, the gateway should be the router... everything is plugged into it, no? > What DHCP pool range should I set my firewall to? I guess you mean your DHCP server/router? Set it to something that doesn't include 192.168.0.1 > > Apparently, the device can be access directly, but for this I would need > cross over cable isn't it? > yes W -- "Dude, this is making the same approximation twice in a row. It's like a whack-a-mole game." ~DeathMech, Some Student. P-town PHY 205 Sortir en Pantoufles: up 14 days, 20:39 -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] sub-net 0.0.0.0
On Fri, 2005-08-26 at 10:02 -0600, Joseph wrote: > I have a device with an IP 192.168.0.1 which I need to access via > browser. > My PC gets an IP via DHCP from the router. > What should I use for gateway? I've tired 192.168.0.0 192.168.0 > What DHCP pool range should I set my firewall to? > > Apparently, the device can be access directly, but for this I would need > cross over cable isn't it? I've set my gateway to 0.0.0.0 but I don't know what to use for DHCP pool range. -- #Joseph -- gentoo-user@gentoo.org mailing list
[gentoo-user] sub-net 0.0.0.0
I have a device with an IP 192.168.0.1 which I need to access via browser. My PC gets an IP via DHCP from the router. What should I use for gateway? I've tired 192.168.0.0 192.168.0 What DHCP pool range should I set my firewall to? Apparently, the device can be access directly, but for this I would need cross over cable isn't it? -- #Joseph -- gentoo-user@gentoo.org mailing list
