Hi! What configuration things do I have to set up in order to use my crux box as a router. This is what I've got:

rbthomas@greybox:~$ /sbin/ifconfig eth0 Link encap:Ethernet HWaddr 00:10:5A:26:F7:42 inet addr:10.0.0.1 Bcast:10.255.255.255 Mask:255.0.0.0 inet6 addr: fe80::210:5aff:fe26:f742/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1864 errors:0 dropped:0 overruns:0 frame:0 TX packets:138 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:173767 (169.6 Kb) TX bytes:11140 (10.8 Kb) Interrupt:53 Base address:0xe000

eth1 Link encap:Ethernet HWaddr 00:03:93:6F:AB:A0 inet addr:192.168.1.162 Bcast:192.168.1.255 Mask: 255.255.255.0 inet6 addr: 2001:4978:21a:1:203:93ff:fe6f:aba0/64 Scope:Global inet6 addr: fe80::203:93ff:fe6f:aba0/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:3140 errors:0 dropped:0 overruns:0 frame:0 TX packets:2275 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:475513 (464.3 Kb) TX bytes:211541 (206.5 Kb) Interrupt:41 Base address:0x5000

lo Link 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:6 errors:0 dropped:0 overruns:0 frame:0 TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:438 (438.0 b) TX bytes:438 (438.0 b)

rbthomas@greybox:~$ netstat -nr Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 10.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 eth0 0.0.0.0 192.168.1.254 0.0.0.0 UG 0 0 0 eth1

rbthomas@greybox:~$ cat /etc/rc.d/net #!/bin/sh # # /etc/rc.d/net: start/stop network #

case $1 in start) # loopback /sbin/ip addr add 127.0.0.1/8 dev lo broadcast + scope host /sbin/ip link set lo up # ethernet ## /sbin/dhcpcd -t 10 -h $HOSTNAME --noipv4ll eth1 /sbin/ip addr add 192.168.1.162/24 dev eth1 broadcast 192.168.1.255 scope global /sbin/ip link set eth1 up # ethernet /sbin/ip addr add 10.0.0.1/8 dev eth0 broadcast 10.255.255.255 /sbin/ip link set eth0 up /sbin/ip route add default via 192.168.1.254 dev eth1 echo 1 > /proc/sys/net/ipv4/ip_forward ;; stop) /usr/bin/killall -q /sbin/dhcpcd /sbin/ip route del default /sbin/ip link set eth0 down /sbin/ip link set eth1 down /sbin/ip link set lo down /sbin/ip addr del 127.0.0.1/8 dev lo /sbin/ip addr del 10.0.0.1/8 dev eth0 /sbin/ip addr del 192.168.1.162/24 dev eth1 /sbin/ip route del default echo 0 > /proc/sys/net/ipv4/ip_forward ;; restart) $0 stop $0 start ;; *) echo "usage: $0 [start|stop|restart]" ;; esac

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eth1 is connected to my main home network. eth0 is connected via a crossover cable to a debian box. I can't make the crux box route packets from the debian box to the rest of the home network...

debian:~# ping -n 10.0.0.1 PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data. 64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=0.197 ms 64 bytes from 10.0.0.1: icmp_seq=2 ttl=64 time=0.121 ms 64 bytes from 10.0.0.1: icmp_seq=3 ttl=64 time=0.114 ms 64 bytes from 10.0.0.1: icmp_seq=4 ttl=64 time=0.113 ms ^C --- 10.0.0.1 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3006ms rtt min/avg/max/mdev = 0.113/0.136/0.197/0.036 ms debian:~# ping -n 192.168.1.162 PING 192.168.1.162 (192.168.1.162) 56(84) bytes of data. 64 bytes from 192.168.1.162: icmp_seq=1 ttl=64 time=0.213 ms 64 bytes from 192.168.1.162: icmp_seq=2 ttl=64 time=0.119 ms 64 bytes from 192.168.1.162: icmp_seq=3 ttl=64 time=0.146 ms ^C --- 192.168.1.162 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 1998ms rtt min/avg/max/mdev = 0.119/0.159/0.213/0.040 ms debian:~# ping -n 192.168.1.254 PING 192.168.1.254 (192.168.1.254) 56(84) bytes of data. ^C --- 192.168.1.254 ping statistics --- 5 packets transmitted, 0 received, 100% packet loss, time 4014ms

debian:~# traceroute -n 192.168.1.254 traceroute to 192.168.1.254 (192.168.1.254), 30 hops max, 40 byte packets 1 10.0.0.1 0.212 ms 0.082 ms 0.078 ms 2 * * * 3 * * * 4 * * * 5 * * * 6 * * * 7 *^C

The traceroute and the first and second ping show that packets are getting from the debian box to the crux box OK. But the rest of the traceroute shows that the crux box isn't forwarding beyond itself. Anybody got any clues? Thanks! Rick