VTP Question

themagicone

I'm messing around with VTP and seemed to run into something not covered in the books. It's probably beyond CCNA but it bugs me now.

Alright I have 2 switch separated by 2 routers. The 2 routers are connected via serial. I set up all the Vlans, ports, ips, etc on one switch. Then, I set the port going to the router as trunk. And so on, setting up the sub interfaces, etc.

What I want to do is run VTP so it will update the switch on the other side of both routers. If I connect the 2 switches together it works perfectly. I've tried copying the sub interfaces and the like onto the other router but no go.

How do you get VTP info to transverse a serial link and 2 routers?

Thanks.

Config for router 1/2:

interface FastEthernet0/0.1
encapsulation dot1Q 10
ip address 172.0.16.1 255.255.255.0
!
interface FastEthernet0/0.2
encapsulation dot1Q 20
ip address 172.0.17.1 255.255.255.0
!
interface FastEthernet0/0.3
encapsulation dot1Q 30
ip address 172.0.18.1 255.255.255.0

Switch 1:

interface FastEthernet0/1
switchport mode trunk
!
interface FastEthernet0/2
switchport access vlan 30
!
interface FastEthernet0/3
switchport access vlan 20
!
interface FastEthernet0/4
switchport access vlan 10


Now I did a no shut on Vlan 1 on both switches and set IP address for them in the same subnet.

themagicone

Well I answered my question. VTP will not traverse layer devices. But I can't delete the post so... Anyways wish me luck on my test tomorrow.