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New Member

Router : Vlan and leased line

Hello,

I have a remote 2821 router connected to a 2821 router at our main site via leased line. On the main site, i have 4 vlans on the same interface fastethernet. I would like to route 2 vlans and bridge the others.

How can I configure both routers ?

best regards.

  • WAN Routing and Switching
2 REPLIES

Re: Router : Vlan and leased line

you bridge two subinterfaces

bridge irb

bridge 1 protocol ieee.

bridge 1 route ip

int fa0/0.10

bridge-group 1

int fa0/0.20

bridge-group 1

int fa0/0.30

ip add 10.10.30.1 255.255.255.0

int fa0/0.40

ip add 10.10.40.1 255.255.255.0

int bvi 1

ip add 10.10.10.1 255.255.255.0

The three subnets you will have to route now are 10.10.10.0, 10.10.30.0 and 10.10.40.0.

Configure a routing protocol such as EIGRP or OSPF or RIP and include these three networks to push the routes to the remote router.

New Member

Re: Router : Vlan and leased line

Hi,

Thanks for you answer thisisshanky.

but i need to keep the 2 vlans (bridged) sseparate on the remote side. How can I keep the 2 vlans or the tag 802.1q on the same lease line ?

Vlan x routed <---> <----> routed Vlan y

Vlan 2 bridged <---> LL <---> bridged vlan 2

Vlan 3 bridged <---> <---> birdged vlan 3

best regards

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