Hi
My name is Calin Ciuleanu and i have some routing problem with iproute2
Here is my problem detalied:
i made one tunnel with ip tunnel that works between one cisco and a
linux box
here is the conf for the tunnel on cisco
interface Tunnel1
description tunnel to C5
ip address 217.13.104.233 255.255.255.252
tunnel source 193.231.111.225
tunnel destination 193.226.6.227
tunnel mode ipip
!
on the destination linux box 193.226.6.227 i made this tunnel
#ip tunnel add tunnel0 mode ipip remote 193.231.111.225 local
193.226.6.227
#ip addr add 217.13.104.234/30 dev tunnel0
#ifconfig tunnel0 up
the tunnel works great thanks to you
on the linux box i have this main interfaces
eth0 Link encap:Ethernet HWaddr 00:10:4B:43:4C:CF
inet addr:193.226.6.227 Bcast:193.226.6.231
Mask:255.255.255.248
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1064424 errors:0 dropped:0 overruns:0 frame:0
TX packets:872599 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:887874824 (846.7 Mb) TX bytes:118030509 (112.5 Mb)
Interrupt:10 Base address:0x7000
eth1 Link encap:Ethernet HWaddr 00:00:21:29:86:BA
inet addr:172.27.36.1 Bcast:172.27.36.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:950404 errors:0 dropped:0 overruns:0 frame:3140
TX packets:1114735 errors:366 dropped:0 overruns:0 carrier:379
collisions:374402 txqueuelen:100
RX bytes:128979640 (123.0 Mb) TX bytes:900948467 (859.2 Mb)
Interrupt:5 Base address:0x6c00
the network connected to eth1 is with fake addresses
My routing table looks like this
root@gate:/# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
217.13.104.232 0.0.0.0 255.255.255.252 U 0 0 0 tunnel0
193.226.6.224 0.0.0.0 255.255.255.248 U 0 0 0 eth0
172.27.36.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 193.226.6.225 0.0.0.0 UG 0 0 0 eth0
I made another routing from the cisco from but now for another subnet
ip route 217.13.104.236 255.255.255.252 Tunnel1
217.13.104.236 net
217.13.104.237 ip1
217.13.104.238 ip3
217.13.104.239 brc
first ip is on a dummy on eth1. I made it with this command
#ifconfig eth1:0 217.13.104.237 netmask 255.255.255.252 broadcast
217.13.104.239
The interface looks like this:
eth1:0 Link encap:Ethernet HWaddr 00:00:21:29:86:BA
inet addr:217.13.104.237 Bcast:217.13.104.239 Mask:255.255.255.252
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:5 Base address:0x6c00
the coresponding routing table:
217.13.104.232 0.0.0.0 255.255.255.252 U 0 0 0 tunnel0
217.13.104.236 0.0.0.0 255.255.255.252 U 0 0 0 eth1
193.226.6.224 0.0.0.0 255.255.255.248 U 0 0 0 eth0
172.27.36.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 193.226.6.225 0.0.0.0 UG 0 0 0 eth0
but the other ip (217.13.104.238/30) i want to set it on one computer
in the lan connected to eth1
My question is :
How can i route ip2: 217.13.104.238 in the tunnel and back ...
For this 217.13.104.237 ( the dummy) traceroute works
slayer@EcoLin:~$ traceroute 217.13.104.237
traceroute to 217.13.104.237 (217.13.104.237), 30 hops max, 38 byte
packets
1 C3640-E0-0 (193.231.111.225) 1.341 ms 1.227 ms 1.346 ms
2 Eco-GW.Cluj.Ro.Eu.Org (217.13.104.237) 4.296 ms 4.092 ms 4.001 ms
slayer@EcoLin:~$
but for 217.13.104.238 not
slayer@EcoLin:~$ traceroute 217.13.104.238
traceroute to 217.13.104.238 (217.13.104.238), 30 hops max, 38 byte
packets
1 C3640-E0-0 (193.231.111.225) 1.348 ms 1.247 ms 1.253 ms
2 gate.campus.utcluj.ro (193.226.6.227) 4.703 ms 4.099 ms 4.333 ms
3 * * *
4 *
I tried something like this but it doesn't work
echo "200 kalin" >> /etc/iproute2/rt_tables
ip rule add from 217.13.104.236/32 table kalin
ip route add default dev tunnel0 table kalin
Best regards
Calin Ciuleanu
