3560 Routing Setup

Unanswered Question
Oct 23rd, 2007

I need some help configuring 2 3560's to route across a Metro E, both using port 49 with subnets 192.168.0.x routing to 192.168.1.x

I have this problem too.
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Edison Ortiz Tue, 10/23/2007 - 13:54

Can you provide a network topology ?

What do you mean 'both using port 49' ? That port is being used for TACACS. I'm not exactly sure what you mean by that.

cnelson01 Tue, 10/23/2007 - 18:38

I need detailed help, either command line or using network assistant to configure 2 Cisco 3560 switches. What I need: to congfigure Gig Eth port 49 on both switches to route to each other. One side is on a 192.168.1.x and the other a 192.168.0.x subnet. The switches sit on opposite ends of a Metro E PtP.

Edison Ortiz Tue, 10/23/2007 - 20:01

Your provider is offering layer2 or layer3 Metro Ethernet ?

Remember both switches aren't connected directly to each other via switchport G0/49, but they are actually using other switches in transit.

If they provide layer2 MetroE, you need to know the access Vlan they've provided for your configuration. If they provide layer3, some guidelines from the provider must've been given in term of addressing.

Once you get that information, post back.

Edison Ortiz Wed, 10/24/2007 - 13:49

You need to get the 'transit vlan' information from your provider, then on the switchport G0/49 you would configure something like this:

interface g0/49

switchport mode trunk

switchport trunk native vlan [transit vlan from provider]

! prune your Vlans !

switchport trunk allowed vlan [vlan-id]

royalblues Wed, 10/24/2007 - 14:13

I think mostly the service provider has given you a P2P connection over his ME backbone

Just configure the ports on the switches as routed ports and you should be good to go.

On switch 1

int g 1/0/49

no switchport

ip address

ip route

On switch 2

int g 1/0/49

no switchport

ip address

ip route

If it is a true Layer 2 metro service then the configuration would be similar to the one posted by Edison



cnelson01 Wed, 10/24/2007 - 17:50

On your last line there "[vlan-id]" is that the native vlan on the switch or the providers?

Edison Ortiz Wed, 10/24/2007 - 19:18

That's the list of Vlans you want to allow on this trunk. The provider's Vlan should be included.

cnelson01 Mon, 11/05/2007 - 12:41

Ok I just got word the MetroE is up and it has been setup with a dot1q tunnel. How does that change my configuration?

cnelson01 Mon, 11/05/2007 - 13:53

On one side the default gateway is the firewall, on the otherside of the WAN it is the PTP router. If I trunk this connection, what will I setup in place of the gateway on the side with the router?


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