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Cisco 3745 with NM-16ESW

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RonCSS

IS-IT--Management
Nov 14, 2002
14
US
I have a 3745 with a NM-16ESW network module installed. I'm trying to use the 16 ports as router ports from my network. Since they are layer 2, I can't set an ip address on these. What's the best way to set these ports so I can route through them?

Thanks
 
Create L3 vlan interfaces by issuing interface vlan # command. You will need to create the VLANs at L2 first though.
 
Here's what I'm doing:

!
interface FastEthernet2/2
switchport access vlan 4
no ip address
!
!
interface Vlan4
ip address 198.185.XXX.X 255.255.255.0
!

I set an address under vlan 4 but could not route.
 
Make sure routing is on for the router also verify you addresses on the pc you are going to ping matches the subnet you have it attached to along with the correct mask and default gateway for the nic card . Did you create the layer 2 vlan ? If you do a show vlan-switch vlan 4 has to show up and active if not , do the following.

type
vlan database, enter
vlan 4, enter
exit


Then do a show vlan-switch again .
 
Yep, all the vlans are there.

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa2/1, Fa2/4, Fa2/5, Fa2/6
Fa2/7, Fa2/8, Fa2/9, Fa2/10
Fa2/11, Fa2/12, Fa2/13, Fa2/14
Fa2/15, Gi2/0
2 VLAN0002 active
3 VLAN0003 active Fa2/3
4 VLAN0004 active Fa2/2


I guess I need to try this again tomorrow morning when no one is using it.
Thanks
 
Where are you trying to ping from , if its from one of the other ports then they are all in vlan 1 in which case you would have to create the same for int vlan 1 as you did for vlan 4 to route to it , int vlan 1 then give it a ip address . If you are directly on the router in the console port you should be able to ping it if your layer 3 SVI shows up/up. Do a show ip int brief to check...
 
Ok, talked to Cisco. Got the one port directly connected to a laptop with the same class address. So far it's routing. Still need to test some other issues. I had it plugged into a switch with other machines in the same vlan. Those machine were taking 5 minutes to bring up a web page. I think it was looping with my other router even though I was using different ip classes.
 
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