Hi all,

I am trying to create the following set up

I have following linux networking set up.


Machine A Ip-10.8.11.100 (Source machine)
Machine B ip-10.8.11.1 (acting as a gateway for 10.5.0.0 network )
Machine C ip-10.8.11.2 (acting as a gateway for 192.68.11.0 network )
Machine D ip-10.5.0.1 (Dest machine)
Machine E ip-192.168.11.1 (Dest machine)
Machine F ip-10.8.11.5 (default agteway)

Now I want to add both the destination networks into Machine A so that I should able to ping ip address of both the networks from it.


The rules and routes that I ave added on machine A a below :-

$ip rule add from 10.8.11.100 table 2
$ip route add 10.5.0.0/24 via 10.8.11.1 dev eth0 src 10.8.11.100 table 2
$ip route add 192.168.11.1 via 10.8.11.2 dev eth0 src 10.8.11.100 table 2
$ip route add default via 10.8.11.5 table 2
$ip route flush cache

Here the rules on the Machine A

$ip rule show
0: from all lookup local
32763: from 10.8.11.100 lookup 2
32766: from all lookup main
32767: from all lookup default


Here are the routes in table 2 of machine A

$ip route show table 2
192.168.11.0/24 via 10.8.11.2 dev eth0 src 10.8.11.100
10.5.0.0/24 via 10.8.11.1 dev eth0 src 10.8.11.100
default via 10.8.11.5 dev eth0


Now what is happening is when I trying to ping any destination from Machine A, I am not getting any ping reply from any of the network and I think the packet is also not reaching to destination machine as I am not seeing anything in the tcpdump traces at the destination.(Machine D & Machine E).



Now when I am adding the same rules to the main table of linux everything is working fine . I can able to ping all the static as well as default networks from machine A.

I don't know whts was happening when I am adding the same routes to table 2.

A part from that I am directly using the table index 2 without adding its entry in /etc/iproute2/rt_tables file.
Is it necessary to add the table name into that file.?

I did that as well but looks like it is not working out.
How can we know which routing table currently linux is using.?

Please help me here

did you try:

1 members found this post helpful.

No my requiremnt is to achieve this using ip command..Please help me

If you run the route command it will show the info