Advertising VRF route in global routing table.

[mahesh18]

Hi everyone,

We have Vlan interface  on switch

config

int vlan 10

ip vrf forwarding Sales

ip address 192.168.95.1

when i do sh ip route on same switch it shows

D EX 192.168.95.0/24 [170/297245184] via 172.21.100.110, 7w0d, Vlan110

does this mean that we are advertising VRF  Route that belongs to VRF  Sales into global routing table?

Does advertising a VRF  Route to global route is called Route leak?

Thanks

Mahesh

[Reza Sharifi · Accepted solution]

Hi Mahesh,

D EX 192.168.95.0/24 [170/297245184] via 172.21.100.110, 7w0d, Vlan110

Is vlan 110 part of the global routing table? If yes, then you should have static route that leaks the vrf to global.

something like this

ip route vrf sales 192.168.95.0 255.255.255.0 vlan 110

Does advertising a VRF  Route to global route is called Route leak?

correct, when you leak vrf to vrf or vrf to global, it is called route leaking.

Also, can you post sh run?

HTH

[mahesh18]

Hi Reza,

Thanks for reply.

Here is config of vlan 110

interface Vlan110

ip address 172.21.100.254 255.255.255.0

Also i found this static route

ip route vrf  Sales  0.0.0.0 0.0.0.0 172.21.100.35

Thanks

MAhesh

[Reza Sharifi · Accepted solution]

Hi Mahesh,

This static route is within vrf Sales.  There is no route leaking.

Can you also post "sh run"?

Also, good doc on route leaking.

http://www.cisco.com/en/US/tech/tk436/tk832/technologies_configuration_example09186a0080231a3e.shtml#global

HTH

Reza

[mahesh18]

Hi Reza,

Unfortunately i can not post sh run.

when you  say  static route is within vrf sales does it mean that destination IP is in same subnet as VRF  sales?

Also vrf route leak is always defined by static route?

Thanks

MAhesh

[Reza Sharifi · Accepted solution]

Hi Mahesh,

Ok, I understand.  If you don't have any other static route showing vrf to global leaking.  Then no leaking is done on this device.

HTH

Reza

[mahesh18]

Many thanks again Reza.

Regards

MAhesh