how to change ssh tunnel source ip

firewireee · 01-06-2007, 08:22 AM

I use SSH tunnels ( -D ) to access my local network from outside.

But the last machine I configured I can't surf local network because my source ip is from ppp0 and not eth1.

Is there any way to setup witch ethernet device ssh uses ?

Code:

suzn:/# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
BSN-access.dsl. *               255.255.255.255 UH    0      0        0 ppp0
192.168.0.0     *               255.255.255.0   U     0      0        0 eth1
239.0.0.0       *               255.0.0.0       U     0      0        0 eth1
default         *               0.0.0.0         U     0      0        0 ppp0
suzn:/# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:60:97:D5:C6:25
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:5077234 errors:1 dropped:0 overruns:0 frame:1
          TX packets:4264111 errors:0 dropped:0 overruns:0 carrier:1
          collisions:66201 txqueuelen:1000
          RX bytes:4265669470 (3.9 GiB)  TX bytes:1338685241 (1.2 GiB)
          Interrupt:11 Base address:0x1080

eth1      Link encap:Ethernet  HWaddr 00:50:04:82:FC:BA
          inet addr:192.168.0.5  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1044871 errors:1 dropped:0 overruns:0 frame:1
          TX packets:1660743 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:105912003 (101.0 MiB)  TX bytes:1941903675 (1.8 GiB)
          Interrupt:10 Base address:0x1000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:43116 errors:0 dropped:0 overruns:0 frame:0
          TX packets:43116 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:10901119 (10.3 MiB)  TX bytes:10901119 (10.3 MiB)

ppp0      Link encap:Point-to-Point Protocol
          inet addr:195.210.*.*  P-t-P:213.250.19.90  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1
          RX packets:3039676 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2574576 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3
          RX bytes:2613565506 (2.4 GiB)  TX bytes:742325278 (707.9 MiB)

suzn:/#

chort · 01-07-2007, 03:21 AM

You can create a file for ssh client configuration as ~/.ssh/config and it will automatically be used for any ssh connections you initiate from this machine & account. In that file you can use the BindAddress statement to set which IP to use as your source IP. You can also use the -b option on the command line.