As fresh as it gets: jackman@shuttle:~$ ping 192.168.100.1 PING 192.168.100.1 (192.168.100.1) 56(84) bytes of data. 64 bytes from 192.168.100.1: icmp_seq=1 ttl=64 time=0.428 ms 64 bytes from 192.168.100.1: icmp_seq=2 ttl=64 time=0.358 ms ^C --- 192.168.100.1 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 999ms rtt min/avg/max/mdev = 0.358/0.393/0.428/0.035 ms jackman@shuttle:~$ route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 10.10.10.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 24.21.216.0 0.0.0.0 255.255.252.0 U 0 0 0 eth1 0.0.0.0 24.21.216.1 0.0.0.0 UG 100 0 0 eth1
The following is an excerpt from what I sent to comcast... The following is a record of a DHCP renew receiving an offer from the offending server: root@shuttle:/home/jackman# ifdown eth1 && ifup eth1 ifdown: interface eth1 not configured Internet Systems Consortium DHCP Client V3.1.3 Copyright 2004-2009 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/eth1/00:4f:4e:03:a2:3f Sending on LPF/eth1/00:4f:4e:03:a2:3f Sending on Socket/fallback DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 7 DHCPOFFER of 192.168.100.2 from 192.168.100.1 DHCPREQUEST of 192.168.100.2 on eth1 to 255.255.255.255 port 67 DHCPACK of 192.168.100.2 from 192.168.100.1 bound to 192.168.100.2 -- renewal in 13 seconds. ssh stop/waiting ssh start/running, process 1491 root@shuttle:/home/jackman# nmap -sP 192.168.100.1 Starting Nmap 5.00 ( http://nmap.org ) at 2011-02-27 00:27 PST Host 192.168.100.1 is up (0.00058s latency). MAC Address: 00:17:9A:DD:F0:02 (D-Link) Nmap done: 1 IP address (1 host up) scanned in 0.47 seconds It turns out that my own modem is also accessible at 192.168.100.1, but when I scan it, it returns the following: root@shuttle:/home/jackman# nmap -sP 192.168.100.1 Starting Nmap 5.00 ( http://nmap.org ) at 2011-02-27 13:50 PST Host 192.168.100.1 is up (0.00059s latency). Nmap done: 1 IP address (1 host up) scanned in 0.15 seconds Notice that nmap is not able to determine the MAC address. For reference, the mac address on my own modem is (00.17.9A.DD.F0.00). Also for reference, this is a typical DHCP request and its result: root@shuttle:/home/jackman# ifdown eth1 && ifup eth1 There is already a pid file /var/run/dhclient.eth1.pid with pid 6727 killed old client process, removed PID file Internet Systems Consortium DHCP Client V3.1.3 Copyright 2004-2009 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/eth1/00:4f:4e:03:a2:3f Sending on LPF/eth1/00:4f:4e:03:a2:3f Sending on Socket/fallback DHCPRELEASE on eth1 to 192.168.100.1 port 67 Internet Systems Consortium DHCP Client V3.1.3 Copyright 2004-2009 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/eth1/00:4f:4e:03:a2:3f Sending on LPF/eth1/00:4f:4e:03:a2:3f Sending on Socket/fallback DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 7 DHCPOFFER of 24.21.218.157 from 73.88.148.1 DHCPREQUEST of 24.21.218.157 on eth1 to 255.255.255.255 port 67 DHCPACK of 24.21.218.157 from 73.88.148.1 bound to 24.21.218.157 -- renewal in 154834 seconds. ssh stop/waiting ssh start/running, process 6847 On Sun, Feb 27, 2011 at 7:39 PM, Bill Barry <[email protected]> wrote: > On Sun, Feb 27, 2011 at 6:45 PM, Jackman <[email protected]> wrote: >> And, now, a rendering in ASCII: >> >> ------------------ >> | MONSTER (Server) | <-- eth0:10.10.10.10, static >> ------------------ >> | >> ------------------ >> | SHUTTLE (Router) | <-- eth1 outside (dhclient) / eth0:10.10.10.1 >> inside (dhcp3-server 10.10.10.0/24) >> ------------------ > > > What does route -n show on SHUTTLE? MONSTER should not be able to see > the 192.168.100.0 network if SHUTTLE is routing correctly. Is > SHUTTLE's connection stable, or is it dropping also? Could it just be > a loose cable? > > Bill > _______________________________________________ > EUGLUG mailing list > [email protected] > http://www.euglug.org/mailman/listinfo/euglug > _______________________________________________ EUGLUG mailing list [email protected] http://www.euglug.org/mailman/listinfo/euglug
