Bad IOS Image? SOLVED!

hey guys, thought i'd ask some guys who have some little more routing expericen than i do. I assume I have the wrong IOS image or type but i wanted to confirm this before i go on a witch hunt looking for it.

I am trying to configure via GNS3 a frame relay multipoint cmd....thing is, when I type it in the cmd in it doesnt work!

Should be....

Router(config)#int serial 0/0.1 multipoint
Router(config-subif)#

But instead IOS yells at me

BadIOS(config)#int serial 0/0.1 multipoint
arrow under the m ^
%invalid input detected at '^' marker.

????? Huh? Do I have need a certain version of the IOS to get this working?

Thanks!

Find more posts tagged with

Free for TechExams community: Cybersecurity salary guide

Compare cert salaries and plan your next career move

Button

Comments

martell1000

you is doing it wrong;

Router(config)#int serial 0/0.1 multipoint
^
% Invalid input detected at '^' marker.

try a lil something like this:

Router(config)#int serial 0/0.1
Router(config-subif)#

bermovick

No, what he's got should work. I had thought multipoint wasn't available until you turned on frame-relay encapsulation, but I was also wrong (good thing I checked first):

R3(config)#int serial 0/0.1 multipoint
R3(config-subif)#exit

billyr

If it's a fresh GNS3 router that you have just added, have a quick check and make sure the serial interfaces are actually showing up. It wouldn't be the first time I've tried to put a config on an interface that I hadn't actually added to the router in the first place.

keenon

you did make the encap frame relay before doing that command right?

WillTech105

Yep the interfaces are there when I do a "sh ip int b". Serial1/0 to 1/7 exisit. I even created the subint first but still same message.

(config)#int serial1/0.1
(config-subif)#exit
(config)#int serial1/0.1 multipoint
%invalid input detected at '^' marker.

BTW I am using IOS c7200 12.4(11)T. Thats a high end router so I would like to think it has the ability to do this cmd

martell1000

same output here.

encapsulation is on, and even cisco website says it should be working - strange!

if i do it with a "no ip address" command on the serial interface first i get a

% Warning: cannot change link type

WillTech105

Got it!!

R4(config)#int s1/0
R4(config-if)#en
R4(config-if)#encapsulation frame
R4(config-if)#encapsulation frame-relay
R4(config-if)#no ip add
R4(config-if)#no ip address
R4(config-if)#no sh
R4(config-if)#int
*Sep 8 12:14:06.419: %LINK-3-UPDOWN: Interface Serial1/0, changed state to up
R4(config-if)#int
*Sep 8 12:14:06.419: %ENTITY_ALARM-6-INFO: CLEAR INFO Se1/0 Physical Port Administrative State Down
R4(config-if)#int s1/0.2 ?
% Unrecognized command
R4(config-if)#int s1/0.2
*Sep 8 12:14:17.423: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0, changed state to up
R4(config-if)#int s1/0.2 m
R4(config-if)#int s1/0.2 multi
R4(config-if)#int s1/0.2 multipoint
R4(config-subif)#exit
R4(config)#int s1/0.2 ?
multipoint Treat as a multipoint link
point-to-point Treat as a point-to-point link
<cr>

So apparently you have to put no ip addr on the "main" int, then on the sub you can do your multipoint and point to point config. Frame Encap also helped too -- thanks keenon!

Hope this helps someone out. We can close this thread