GroupStudy.com GroupStudy.com - A virtual community of network engineers
 Home  BookStore  StudyNotes  Links  Archives  StudyRooms  HelpWanted  Discounts  Login
RE: subif on Ethernet posted 01/25/2001
[Chronological Index] [Thread Index] [Top] [Date Prev][Date Next] [Thread Prev][Thread Next]


use "encap ISL X or dot1q X" command and it has to be 100mb interface
if you just want to assign 2nd ip to one interface use ip add x.x.x.x
x.x.x.x secondary command

Andy Singh
Network Engineer, Slam Dunk Networks
650-632-5568
www.slamdunknetworks.com



-----Original Message-----
From: Harbir Kohli [mailto:harbirk@xxxxxxxxxxxx]
Sent: Wednesday, January 24, 2001 4:52 PM
To: 'Ccielab
Subject: subif on Ethernet


Hello,

When I try to assign an IP address to a subinterface I get the following
error:
R1(config-if)#int e0.1
R1(config-subif)#ip add
R1(config-subif)#ip address 150.10.10.1 255.255.255.0

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.

Why?
I tried 11.2.17, 11.2.23, and 12.0.5, all give the same error.

I know that I have created subinterfaces in the past but what version, I
don't remember what IOS version that was under.

Is there a workaround?

Also to create an ISL interface do you need fast ethernet ? or can you
do it with plain 10baseT?  How do you do it?

Thanks

harbir

_______________________________________________________
To unsubscribe from the CCIELAB list, send a message to
majordomo@xxxxxxxxxxxxxx with the body containing:
unsubscribe ccielab

_______________________________________________________
To unsubscribe from the CCIELAB list, send a message to
majordomo@xxxxxxxxxxxxxx with the body containing:
unsubscribe ccielab