Connectios between subinterfaces Dot1q on Router 2911

zsmr00001 · ‎05-09-2014

Hello,

I would like you to help me with the following issue. I need to connect the following in the router 2911:

gigaEthernet 0/1.20

encapsulation dot1q 20

192.168.120.0 255.255.255.0

to:

gigaEthernet 0/0.90

encapsulation dot1q 90

11.0.12.2 255.255.255.252

Also:

gigaEthernet 0/1.21

encapsulation dot1q 21

192.168.180.0 255.255.255.0

to:

gigaEthernet 0/0.91

encapsulation dot1q 91

11.0.12.6 255.255.255.252

The next hop for 11.0.12.2 is 11.0.12.1 and the next hop for 11.0.12.6 is 11.0.12.5

So, I want to connect the Subnetworks 192.168.120. 0 and 192.168.180.0 to remote host 172.18.70.5, but the subnetwork 192.168.120.0 through 11.0.12.1, and the subnetwork 192.168.180.0 through 11.0.12.5.

I have tried the following:

access-list 101 permit ip 192.168.120.0 0.0.0.255 any

access-list 102 permit ip 192.168.180.0 0.0.0.255 any

!

route-map XXXX permit 10

match ip address 101

set ip next-hop 11.0.12.1

!

route-map YYYY permit 20

match ip address 102

set ip next-hop 11.0.12.5

!

interface GigabitEthernet0/1.20

encapsulation dot1Q 20

ip address 192.168.120.1 255.255.255.0

ip policy route-map XXXX

!

interface GigabitEthernet0/1.21

encapsulation dot1Q 21

ip address 192.168.180.1 255.255.255.0

ip policy route-map YYYY

!

ip route 11.0.12.0 255.255.255.252 GigabitEthernet0/0.80

ip route 11.0.12.4 255.255.255.252 GigabitEthernet0/0.81

ip route 192.168.120.0 255.255.255.0 GigabitEthernet0/1.20

ip route 192.168.180.0 255.255.255.0 GigabitEthernet0/1.21

!

But it is not routing. So I added the ip route to the network 172.18.70.0 with a next hop and it routes, but I want it to be separated by subred:

Please could you give me some advice to solve this?

I have also thought to use "tag" in route-map in this way:

route-map XXXX permit 10

match ip address 101

set tag 20

!

route-map YYYY permit 20

match ip address 102

set tag 30

!

ip route 172.18.70.0 255.255.255.0 11.0.15.1 tag 20 ( so that it be used only for subnetwork 192.168.120.0)

ip route 172.18.70.0 255.255.255.0 11.0.15.5 tag 30 ( so that it be used only for subnetwork 192.168.180.0)

What do you think, could this works?

Thanks for your help in advance.

Sandro

davrojas · ‎05-09-2014

Hello zsmr00001,

What do you see in a debug ip packet when trying to route?

zsmr00001 · ‎05-11-2014

Hello davrojas,

I have not used debug yet. But, what do you think? What should I use in route map: set ip next hop or tag.

If I use "set ip next hop", ip route 172.18.70.0 ..... it is not necessary, isn't it?

If I use "tag" in route map and I add it to "ip route 172.18.70.0 ..", so should it work?

Thanks for your answers,

rosaho · ‎07-24-2015

This discussion has been reposted from Top Contributors to the WAN, Routing and Switching community.