03-28-2008 06:57 AM - edited 03-03-2019 09:19 PM
Hi, I'm new to Cisco h/w and have been self training on reconfiguring a 1721 router with a 1DSU T1 WIC. The router was originally for our internet connection. The left slot has the above WIC the right slot is empty. What I want to do is simply use the router to connect to a seperate network within our facility. My question is, do I need to use a different WIC card and if so, what should I use? THanks.
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03-28-2008 07:09 AM
Hi, you only need to connect a a switch that does vlans and configure vlan encap on the fastethernet interfface.
Alternatively you need WIC-1E.
Both solution will allow hosts on the two segments to communicate but NOT at wire-speed,
thing for which you should get a L3 switch, the smaller of these is WS3560-8PC.
Hope this helps, please rate post if it does!
03-28-2008 07:38 AM
Then the WIC-1ENET should work just fine! Tn IOS you will see a new ethernet interface which you would need to configure and connect to the other site.
03-28-2008 07:07 AM
What is the connectivity to the other location? Copper, fiber, T1?
03-28-2008 07:19 AM
Sorry, it is copper. (Cat 5e).
03-28-2008 07:25 AM
OK, then Paolo's post is right on, either the WIC-1ENET or you could connect two switches together. The two switches option will give you better performance.
HTH
03-28-2008 07:09 AM
Hi, you only need to connect a a switch that does vlans and configure vlan encap on the fastethernet interfface.
Alternatively you need WIC-1E.
Both solution will allow hosts on the two segments to communicate but NOT at wire-speed,
thing for which you should get a L3 switch, the smaller of these is WS3560-8PC.
Hope this helps, please rate post if it does!
03-28-2008 07:24 AM
We don't have a spare L3 switch but do have the router. When you say " Not at wire speed" is that because the WIC card only supports 10mbps?
03-28-2008 07:27 AM
The switch does not have to be layer 3. You can do layer 2 but you would have to change some routing around which may not be worth it. How much inter-site traffic do you expect?
03-28-2008 07:32 AM
There would be very little traffic through this router.
03-28-2008 07:38 AM
Then the WIC-1ENET should work just fine! Tn IOS you will see a new ethernet interface which you would need to configure and connect to the other site.
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