default routes

carl_townshend · ‎12-17-2008

Hi all

Would it be possible to put a next hop for a default route to somewhere on another network? or am I right in thinking that the device would never get there as the next hop is not directly connected, is this called recursive routing ?

Harold Ritter · ‎12-17-2008

Carl,

It is indeed possible to configure any route to a non-directly connected NH. And yes that would be called a recursive route.

Regards

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

carl_townshend · ‎12-17-2008

can you give an example of this to clarify ?

ajagadee · ‎12-17-2008

R1 10.1.1.1 - 10.1.1.2 R2 192.168.1.1 - 192.168.1.2 R3

On R1:

ip route 0.0.0.0 0.0.0.0 192.168.1.2

ip route 192.168.1.0 255.255.255.0 10.1.1.2

So, the default route is pointing to 192.168.1.2 on R3. But to reach 192.168.1.0/24, R1 needs to route to R2.

Regards,

Arul