InterVLAN routing....

Ok I got a 2514 with 2 AUI interfaces and 2 serial interfaces. Currently I have the 2 AUI interfaces plugged into my two cisco 2912 switches. I want to configure subinterfaces on the Ethernet interfaces but it keeps giving me an error when I type:

int e1/1.1 or e0/0.1 ..etc...I am running 12.0(26)!

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lwwarner

Look at your actual interface names. Interfaces e0/0 & e1/1 do not exist on a 2514. The correct interface names are left as an excercise for the reader...

--Bill

Humper

BAHAHA!! I got it int e1.1 ....etc!

Humper

BTW Thank you, that was complete stupidity on my part!

lwwarner

No problem! Going back and forth between different routers I'm constanly mixing up s0, s0/0, s0/0/0, etc.

--Bill

Humper

When I try to set the encapsulation method on the sub-interface of ethernet 1 I can't find the command for it. Apparently on the 2600 it's encapsulation dot1q <vlan#> ....I tried doing a ? and couldnt find anything related....I am probably missing something

Humper

Anyone have any pointers?

lwwarner

Yeah, unfortunately you can't do that on a 10 Mbs port...

http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/switch_c/xcprt7/xcdvl.htm#xtocid13
Cisco does not support IEEE 802.1Q encapsulation for Ethernet interfaces.

--Bill

keenon

you can run 12.2(29) enterprise edition and run sub interfaces on ethernet/w encapsulation

Humper

I think I will just hook these bad boys up to my 1720 which has 100Mbps FE interfaces.

lwwarner

keenon wrote:

you can run 12.2(29) enterprise edition and run sub interfaces on ethernet/w encapsulation

Not on a 2514; no dot1q support...

--Bill

Humper

The 1720 router I have with 12.1(5) doesnt support encapsulation...Is there a reason why? Is my IOS not new enough?

Here's some weird output I get

RouterC(config)#int f0.1
RouterC(config-subif)#ip ad
RouterC(config-subif)#ip address 192.168.10.1 255.255.255.240

% Configuring IP routing on a LAN subinterface is only allowed if that
subinterface is already configured as part of an IEEE 802.10, IEEE 802.1Q,
or ISL vLAN.

RouterC(config-subif)#en
RouterC(config-subif)#encapsulation dot1q
                                    ^
% Invalid input detected at '^' marker.

RouterC(config-subif)#

mikej412

ModemHumper wrote:

The 1720 router

For some reason the 1720 doesn't support trunking -- even though it has a fast ethernet port.

Humper

mikej412 wrote:

ModemHumper wrote:

The 1720 router

For some reason the 1720 doesn't support trunking -- even though it has a fast ethernet port.

so my 2514's 1720's and 4000's all don't support trunking......F@$&!!!!

What is a cheap router that does?

mikej412

ModemHumper wrote:

so my 2514's 1720's and 4000's all don't support trunking......F@$&!!!!
What is a cheap router that does?

The 2610 with >12.2... supports trunking on the 10Mbps interface... and most, if not all, of the the 17xxs except for the 1720s -- which explains why the 1720s are usually cheap on eBay....

I guess the the question would be -- does the Fast Ethernet option for the 4000 support trunking.....

Humper

mikej412 wrote:

ModemHumper wrote:

so my 2514's 1720's and 4000's all don't support trunking......F@$&!!!!
What is a cheap router that does?

The 2610 with >12.2... supports trunking on the 10Mbps interface... and most, if not all, of the the 17xxs except for the 1720s -- which explains why the 1720s are usually cheap on eBay....

I guess the the question would be -- does the Fast Ethernet option for the 4000 support trunking.....

Just tried one of the 1721's at work and it supports dot1q encapsulation..That's really weird as the 1720's and 21's look and seem identical.

duncnz

mikej412 wrote:

The 2610 with >12.2... supports trunking on the 10Mbps interface

That's right, I just so happened to try it with my 2610 today and it worked fine, albeit, only in half duplex mode. 2610s can be bought fairly cheaply...