Re: [Dnsmasq-discuss] Issues with multiple subnets on dnsmasq
Thanks Ryan for replying, I seriously need your help here, We have dhcp ranges:- dhcp-range=eth1,172.16.49.101,172.16.49.254,14400 dhcp-range=eth1,172.16.50.1,172.16.50.254,14400 dhcp-range=eth1,172.16.51.101,172.16.51.254,14400 dhcp-range=eth4,172.16.56.20,172.16.56.254,14400 dhcp-range=eth3,172.16.52.21,172.16.53.254,14400 So none of the machines pull the 172.16.48.x ip addresses, however they do pull other ones like 49/50/51/52/56,apart from 49 series pulled from dhcp and 48 series if forced manualy, all other can ping 172.16.48.4. For all the series which we have setup on eth1, i.e dhcp-range=eth1,172.16.49.101,172.16.49.254,14400 dhcp-range=eth1,172.16.50.1,172.16.50.254,14400 dhcp-range=eth1,172.16.51.101,172.16.51.254,14400 We are trying to setup *172.16.48.4* as gateway, it works fine for 50/51 ips pulled by hosts but, dont work for 49 series, and subnet which its lying under in vlan is 255.255.252.0 on Untangle route -n [root @ untangle] Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.0.2.0 0.0.0.0 255.255.255.0 U 0 00 dummy0 192.0.2.0 0.0.0.0 255.255.255.0 U 0 00 utun 172.16.57.0 0.0.0.0 255.255.255.0 U 0 00 eth0 172.16.56.0 0.0.0.0 255.255.255.0 U 0 00 eth4 172.16.52.0 0.0.0.0 255.255.254.0 U 0 00 eth3 172.16.48.0 0.0.0.0 255.255.254.0 U 0 00 eth2 172.16.48.0 0.0.0.0 255.255.252.0 U 0 00 eth1 ifconfig on host with 50 eth0 Link encap:Ethernet HWaddr 00:18:8b:c3:f2:10 inet addr:172.16.50.235 Bcast:172.16.51.255 Mask:255.255.252.0 inet6 addr: fe80::218:8bff:fec3:f210/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:123102 errors:0 dropped:10 overruns:0 frame:0 TX packets:70439 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:115719183 (115.7 MB) TX bytes:7541314 (7.5 MB) Interrupt:17 loLink encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:3477 errors:0 dropped:0 overruns:0 frame:0 TX packets:3477 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:331477 (331.4 KB) TX bytes:331477 (331.4 KB) arp -a ? (172.16.48.147) at 00:0c:29:ce:46:7c [ether] on eth0 ? (172.16.48.146) at 00:04:23:b0:92:d8 [ether] on eth0 ? (172.16.48.4) at 00:04:23:c7:52:62 [ether] on eth0 ? (172.16.48.1) at 00:1a:a2:24:73:c1 [ether] on eth0 Please suggest. On Mon, Sep 3, 2012 at 10:28 PM, Ryan Chapman wrote: > On the host that pulls a 172.16.48 address, try a ping of 172.16.48.4 and > then check the arp table to make sure it resolved to a hardware address. > If not, tcpdump arp traffic. > > It might be interesting to see what an ifconfig, "route -n" and "arp -a" > look like on the 172.16.48 host... > > > On Sep 3, 2012, at 7:29 AM, subhranshu dwivedi < > subhranshu.dwiv...@erminsystems.com> wrote: > > Hi All, > > I have Untangle with DNS masq setup at my end, > > With interface: > > External > eth0 Link encap:Ethernet HWaddr 00:04:23:c7:52:63 > inet addr:172.16.57.10 Bcast:172.16.57.255 Mask:255.255.255.0 > > INTERNAL > eth1 Link encap:Ethernet HWaddr 00:04:23:c7:52:62 > inet addr:172.16.48.4 Bcast:172.16.51.255 Mask:255.255.252.0 > DMZ > eth2 Link encap:Ethernet HWaddr 00:1b:21:0e:1f:46 > inet addr:172.16.48.110 Bcast:172.16.49.255 Mask:255.255.254.0 > > Extra ones: > eth3 Link encap:Ethernet HWaddr fc:75:16:8e:57:2b > inet addr:172.16.52.20 Bcast:172.16.53.255 Mask:255.255.254.0 > > eth4 Link encap:Ethernet HWaddr fc:75:16:8e:57:42 > inet addr:172.16.56.2 Bcast:172.16.56.255 Mask:255.255.255.0 > > Now my dnsmasq.conf, > > localise-queries > server=202.56.224.135 # uplink.1 > server=59.144.127.16 # uplink.1 > expand-hosts > addn-hosts=/etc/untangle-net-alpaca/dnsmasq-hosts > no-hosts > domain=bpl.netlink.com > interface=eth1 > interface=eth3 > interface=eth4 > dhcp-range=eth1,172.16.49.101,172.16.49.254,14400 > dhcp-range=eth1,172.16.50.1,172.16.50.254,14400 > dhcp-range=eth1,172.16.51.101,172.16.51.254,14400 > dhcp-range=eth4,172.16.56.20,172.16.56.254,14400 > dhcp-range=eth3,172.16.52.21,172.16.53.254,14400 > dhcp-option=eth1,3,172.16.48.1 > dhcp-option=eth4,3,172.16.56.1 > dhcp-option=eth3,3,172.16.52.1 > dhcp-option=eth1,1,255.255.252.0 > dhcp-option=eth4,1,255.255.255.0 > dhcp-option=eth3,1,255.255.254.0 > dhcp-option=eth1,6,172.16.48.146,172.16.48.147 > dhcp-option=eth4,6,172.16.48.146,172.16.48.147 > dhcp-option=eth3,6,172.16.52.3,172.16.48.146 > dhcp-lease-max=500 > dhcp-host=00:13:02:a9:8b:57,172.16.48.106,2
[Dnsmasq-discuss] Problem getting dnsmasq to send a different default gateway to a host
Hello, Please be kind this is my first posting to this list. I have spent hours trying to get this to work, but I seem to be missing something. I'm using the latest shibby build of TomatoUSB, and I want dnsmasq to send the default gateway and dns server address of 192.168.0.55 to the host whose MAC address is xx:xx:xx:xx:xx. So I added this to the DNSmasq custom config: dhcp-mac=red,xx:xx:xx:xx:xx:xx dhcp-option=red,3,192.168.0.55 dhcp-option=red,6,192.168.0.55 This almost works. When I look at the DHCP OFFER packet in Wireshark, dnsmasq is sending TWO default gateway (option 3) addresses, the 192.168.0.55 I specified above PLUS the router's 192.168.0.1 address. How can I prevent it from sending the router's IP as well? Some hosts on the network (tagged red) are using the 192.168.0.1 address as their default gateway and some are using the 192.168.0.55. I have tried different permutations of using "tag:" and "set:" and "net:" always with the same result. What am I doing wrong? Thanks in advance. ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] dhcp logging and dhcp-range static configuration
On 03/09/12 18:06, Jean-Baptiste Denis wrote: Hello everybody, I'm running the provided centos dnsmasq version 2.48, and I've got a question regarding logging of dhcp requests. I've configured a static dhcp-range to assign ip addresses to well know system using their hardware address. Something like the following : dhcp-range=192.168.0.1,static,255.255.255.0 dhcp-host=net:x86_64,00:30:99:99:99:1C,node1,192.168.0.2 ... The problem I've got is that my log file are full of unhonored dhcp requests (which is normal, since they don't have any dhcp-host entry in dnsmasq.conf) : DHCPDISCOVER(eth0) 00:30:98:87:65:f0 no address available ... ... Is there a way to prevent logging the DHCPDISCOVER request for unconfigured hardware address in dhcp-range static mode ? Try dhcp-ignore=!known or possibly the old syntax dhcp-ignore=#known I can't remember if 2.48 is new enough for the first one. Cheers, Simon. ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
[Dnsmasq-discuss] dhcp logging and dhcp-range static configuration
Hello everybody, I'm running the provided centos dnsmasq version 2.48, and I've got a question regarding logging of dhcp requests. I've configured a static dhcp-range to assign ip addresses to well know system using their hardware address. Something like the following : dhcp-range=192.168.0.1,static,255.255.255.0 dhcp-host=net:x86_64,00:30:99:99:99:1C,node1,192.168.0.2 ... The problem I've got is that my log file are full of unhonored dhcp requests (which is normal, since they don't have any dhcp-host entry in dnsmasq.conf) : DHCPDISCOVER(eth0) 00:30:98:87:65:f0 no address available ... ... Is there a way to prevent logging the DHCPDISCOVER request for unconfigured hardware address in dhcp-range static mode ? Regards, Jean-Baptiste ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
Re: [Dnsmasq-discuss] Issues with multiple subnets on dnsmasq
On the host that pulls a 172.16.48 address, try a ping of 172.16.48.4 and then check the arp table to make sure it resolved to a hardware address. If not, tcpdump arp traffic. It might be interesting to see what an ifconfig, "route -n" and "arp -a" look like on the 172.16.48 host… On Sep 3, 2012, at 7:29 AM, subhranshu dwivedi wrote: > Hi All, > > I have Untangle with DNS masq setup at my end, > > With interface: > > External > eth0 Link encap:Ethernet HWaddr 00:04:23:c7:52:63 > inet addr:172.16.57.10 Bcast:172.16.57.255 Mask:255.255.255.0 > > INTERNAL > eth1 Link encap:Ethernet HWaddr 00:04:23:c7:52:62 > inet addr:172.16.48.4 Bcast:172.16.51.255 Mask:255.255.252.0 > DMZ > eth2 Link encap:Ethernet HWaddr 00:1b:21:0e:1f:46 > inet addr:172.16.48.110 Bcast:172.16.49.255 Mask:255.255.254.0 > > Extra ones: > eth3 Link encap:Ethernet HWaddr fc:75:16:8e:57:2b > inet addr:172.16.52.20 Bcast:172.16.53.255 Mask:255.255.254.0 > > eth4 Link encap:Ethernet HWaddr fc:75:16:8e:57:42 > inet addr:172.16.56.2 Bcast:172.16.56.255 Mask:255.255.255.0 > > Now my dnsmasq.conf, > > localise-queries > server=202.56.224.135 # uplink.1 > server=59.144.127.16 # uplink.1 > expand-hosts > addn-hosts=/etc/untangle-net-alpaca/dnsmasq-hosts > no-hosts > domain=bpl.netlink.com > interface=eth1 > interface=eth3 > interface=eth4 > dhcp-range=eth1,172.16.49.101,172.16.49.254,14400 > dhcp-range=eth1,172.16.50.1,172.16.50.254,14400 > dhcp-range=eth1,172.16.51.101,172.16.51.254,14400 > dhcp-range=eth4,172.16.56.20,172.16.56.254,14400 > dhcp-range=eth3,172.16.52.21,172.16.53.254,14400 > dhcp-option=eth1,3,172.16.48.1 > dhcp-option=eth4,3,172.16.56.1 > dhcp-option=eth3,3,172.16.52.1 > dhcp-option=eth1,1,255.255.252.0 > dhcp-option=eth4,1,255.255.255.0 > dhcp-option=eth3,1,255.255.254.0 > dhcp-option=eth1,6,172.16.48.146,172.16.48.147 > dhcp-option=eth4,6,172.16.48.146,172.16.48.147 > dhcp-option=eth3,6,172.16.52.3,172.16.48.146 > dhcp-lease-max=500 > dhcp-host=00:13:02:a9:8b:57,172.16.48.106,24h > dhcp-host=94:39:e5:e6:a7:cf,172.16.48.208,24h > > > Now the issue is that i when we assign the ips with dnsmasq running with > multiple subnets as mentioned we face issues with range 49: > dhcp-range=eth1,172.16.49.101,172.16.49.254,14400 > dhcp-range=eth1,172.16.50.1,172.16.50.254,14400 > dhcp-range=eth1,172.16.51.101,172.16.51.254,14400 > > it assigns the 50 and 51 series fine with internet access but when assigns 49 > series ip cant ping the untangles internal ip:172.16.48.4 > and hence no internet for 49 series > > Please suggest what can we do to resolve this. > > -- > Best Regards, > > Subhranshu Dwivedi > Technology Support > Ermin Systems > 0120.437.6161 (Main) > 741.581.0583(direct) > subhranshu.dwiv...@erminsystems.com > > Our Expertise: Consulting Services | Data Centre Solutions | Storage > Solutions | Network Integration | IT Infrastructure Optimization | Managed > Services | Software Licensing | Audio-Visual Integration| Database Migration > | ERP Solutions| IVR Services | Virtualization | > This email and any attachments are sent in confidence, subject to applicable > legal privilege and upon the basis that the recipient will conduct > appropriate virus checks. If you receive this email in error, please > telephone us upon receipt: you are strictly prohibited from using, copying or > disseminating it or any information contained in it, save to the intended > recipient. Internet communications are not secure and Ermin Systems Pvt. Ltd. > is not responsible for their abuse by third parties, nor for any alteration > or corruption in transmission, nor for any damage or loss caused by any virus > or other defects. > P Please consider the environment before printing this e-mail. > > ___ > Dnsmasq-discuss mailing list > Dnsmasq-discuss@lists.thekelleys.org.uk > http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
[Dnsmasq-discuss] Issues with multiple subnets on dnsmasq
Hi All, I have Untangle with DNS masq setup at my end, With interface: External eth0 Link encap:Ethernet HWaddr 00:04:23:c7:52:63 inet addr:172.16.57.10 Bcast:172.16.57.255 Mask:255.255.255.0 INTERNAL eth1 Link encap:Ethernet HWaddr 00:04:23:c7:52:62 inet addr:172.16.48.4 Bcast:172.16.51.255 Mask:255.255.252.0 DMZ eth2 Link encap:Ethernet HWaddr 00:1b:21:0e:1f:46 inet addr:172.16.48.110 Bcast:172.16.49.255 Mask:255.255.254.0 Extra ones: eth3 Link encap:Ethernet HWaddr fc:75:16:8e:57:2b inet addr:172.16.52.20 Bcast:172.16.53.255 Mask:255.255.254.0 eth4 Link encap:Ethernet HWaddr fc:75:16:8e:57:42 inet addr:172.16.56.2 Bcast:172.16.56.255 Mask:255.255.255.0 Now my dnsmasq.conf, localise-queries server=202.56.224.135 # uplink.1 server=59.144.127.16 # uplink.1 expand-hosts addn-hosts=/etc/untangle-net-alpaca/dnsmasq-hosts no-hosts domain=bpl.netlink.com interface=eth1 interface=eth3 interface=eth4 dhcp-range=eth1,172.16.49.101,172.16.49.254,14400 dhcp-range=eth1,172.16.50.1,172.16.50.254,14400 dhcp-range=eth1,172.16.51.101,172.16.51.254,14400 dhcp-range=eth4,172.16.56.20,172.16.56.254,14400 dhcp-range=eth3,172.16.52.21,172.16.53.254,14400 dhcp-option=eth1,3,172.16.48.1 dhcp-option=eth4,3,172.16.56.1 dhcp-option=eth3,3,172.16.52.1 dhcp-option=eth1,1,255.255.252.0 dhcp-option=eth4,1,255.255.255.0 dhcp-option=eth3,1,255.255.254.0 dhcp-option=eth1,6,172.16.48.146,172.16.48.147 dhcp-option=eth4,6,172.16.48.146,172.16.48.147 dhcp-option=eth3,6,172.16.52.3,172.16.48.146 dhcp-lease-max=500 dhcp-host=00:13:02:a9:8b:57,172.16.48.106,24h dhcp-host=94:39:e5:e6:a7:cf,172.16.48.208,24h Now the issue is that i when we assign the ips with dnsmasq running with multiple subnets as mentioned we face issues with range 49: dhcp-range=eth1,172.16.49.101,172.16.49.254,14400 dhcp-range=eth1,172.16.50.1,172.16.50.254,14400 dhcp-range=eth1,172.16.51.101,172.16.51.254,14400 it assigns the 50 and 51 series fine with internet access but when assigns 49 series ip cant ping the untangles internal ip:172.16.48.4 and hence no internet for 49 series Please suggest what can we do to resolve this. -- Best Regards, * * *Subhranshu Dwivedi*** Technology Support *Ermin Systems* 0120.437.6161 (Main) 741.581.0583(direct) subhranshu.dwivedi@**erminsystems.com -- *Our Expertise: **Consulting Services | Data Centre Solutions | Storage Solutions | Network Integration | IT Infrastructure Optimization | Managed Services | Software Licensing | Audio-Visual Integration| Database Migration | ERP Solutions| IVR Services | Virtualization |*** This email and any attachments are sent in confidence, subject to applicable legal privilege and upon the basis that the recipient will conduct appropriate virus checks. If you receive this email in error, please telephone us upon receipt: you are strictly prohibited from using, copying or disseminating it or any information contained in it, save to the intended recipient. Internet communications are not secure and Ermin Systems Pvt. Ltd. is not responsible for their abuse by third parties, nor for any alteration or corruption in transmission, nor for any damage or loss caused by any virus or other defects. *P** **Please consider the environment before printing this e-mail.* ___ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
