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encapsulation on 2600 router

By golem076 ·
Hi,
I'm working on 2600 Cisco routers and trying to configure ISL encapsulation on a fast ethernet subinterface for inter-VLAN communication. So, I'm connecting a 2600 Cisco router and a 5000 Cisco switch. On the 2600s, which are running IOS versions 11.2 - 12.0, the required command (encaps isl [vlan #]) does not seem to be available. What can I do to assign ISL encapsulation and a VLAN to the subinterface?

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encapsulation on 2600 router

by thanetadmin In reply to encapsulation on 2600 rou ...

If u hv ur CCO id , u can very well update ur IOS to latest then try to conf the VLAN
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/switch_c/xcprt7/xcdvlisl.htm#xtocid22

Thanks,
Kias

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encapsulation on 2600 router

by golem076 In reply to encapsulation on 2600 rou ...

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encapsulation on 2600 router

by Meganetcomputers In reply to encapsulation on 2600 rou ...

When you are trying to link multiple vlans you need to make sure to turn on the trunk from your switch to the router with int f0/27 or whatever the port is that you have connected. Then you will then need to make sure that you have the VTP domain set up and you also need to configure the switch. In the router you will then need to set up sub interfaces similiar to:

int e0/0.1
encapsulation isl [vlan #]
ip address x.x.x.x x.x.x.x
int e0/0.2
encapsulation isl [vlam #]
ip address x.x.x.x x.x.x.x

and so on

If you need any further assistance please contact me.

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encapsulation on 2600 router

by golem076 In reply to encapsulation on 2600 rou ...

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encapsulation on 2600 router

by golem076 In reply to encapsulation on 2600 rou ...

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