Hi Scott,

Make sure that you have at least ip plus feature set, this is the general
configuration

ISL do1q is only supported on Fastethernet.

int fastethernet 0/1
no ip add

int fastethernet 0/1.1
encapsulation isl vlan 1
ip add 10.1.1.1 255.255.0.0

int fastethernet 0/1.2
encapsulation isl vlan 2
ip add 10.2.1.1 255.255.0.0


etc

on thr switch

int fax/x
switchport mode trunk



and thats pretty much it.



Kind regards

/Stuart

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        |||         |||             Customer Support Engineer
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    c i s c o S y s t e m s         Email: [EMAIL PROTECTED]

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-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Scott M. Trieste
Sent: Monday, March 05, 2001 2:07 PM
To: [EMAIL PROTECTED]
Subject: Another "Router-on-a-stick" Post


Colleagues,

I've been browsing cisco.com for some info on inter-vlan routing with the
2610.  Cisco says there is a way to build ethernet sub-interfaces for
trunking to a switch.  But when I do a "int e0/0.100" and try to add an IP
address, it gives me an error message:
"Configuring IP routing on a LAN subinterface is only allowed if that
subinterface is already configured as part of an IEEE 802.10 or ISL vLAN."

There doesn't seem to be an "encapsulation [dot1q | isl] command on this
router, and mls obviously isn't supported.

I know that I could just give this interface multiple IP address and use a
"switchport access multi" command on the switch-- but that would be too
easy.

By the way, I am trying to do this with a 2924XL.  Should this or shouldn't
this work?

Many thanks in advance,

Best Regards,

Scott M. Trieste



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