How to add direct routes(proto kernel scope link) to non-main table automatically

linjing · 12-05-2019, 11:37 PM

When I add an IP to interface,the kernel will add a direct route to main table,and if I delete the IP,the kernel will delete the direct route from main table.As follows:

Code:

root@template:~# ip addr add 192.168.10.1/24 dev eth2 
root@template:~# ip route show table main | grep 192.168.10
192.168.10.0/24 dev eth2 proto kernel scope link src 192.168.10.1 
root@template:~# ip addr del 192.168.10.1/24 dev eth2
root@template:~# ip route show table main | grep 192.168.10     
root@template:~#

If add another route table to /etc/iproute2/rt_tables,how to make the new table works like main table add/del direct route automatically?

Thanks!

berndbausch · 12-06-2019, 04:52 AM

In the iproute2 documentation, I read

Quote:

the use of both ip address and ifconfig will cause the kernel to alter the local routing table (and usually the main routing table). For further documentation on how to manipulate the other routing tables, see the command description of ip route.

To me, this means that preferential treatment of the main table is hardcoded, and there is no way of extending this treatment to other tables.

linjing · 12-09-2019, 02:35 AM

Quote:

Originally Posted by berndbausch

In the iproute2 documentation, I read

To me, this means that preferential treatment of the main table is hardcoded, and there is no way of extending this treatment to other tables.

OK,Thanks very much.