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New Member

X25 facilities problem on 2503 router

A 2503 is used for XOT and X25LLC2 connections on ethernet interface and X25 HDLC on the serial interface.

It's running IOS 11.2.25 now.

Upgrading is necessary to add a X25 route statement line "X25 ROUTE 123$ interface eth 0 mac 0000.1111.2222"

But with IOS 12.1.x and 12.2.x I have now problems with the X25 facilties and receiv ethe message

"X25 call confirm packet, BAD ITU-T facilty or value, ITU-T facility not permitted for this value of X.25".

Which IOS can I use on a 2503 that support the X25 route with the ethernet address and also the facilities ?

I've tried 12.1.5, 12.1.10, 12.2.5, .....


Re: X25 facilities problem on 2503 router

try x25 version 1980 under the serial you know which facility is the one being rejected???

New Member

Re: X25 facilities problem on 2503 router

not realy. But I'm not a X25 specialist.

The call is made to the SWIFT network

"ITU-T facility marker"

"Protection QOS (11) (not permitted in this packet)"

These messages also appear in the cisco logging.

New Member

Re: X25 facilities problem on 2503 router

The facility being used is Calling Line Address Modification Notification (CLAM). This facility has arrived with X25 1984.

Is cisco not compliant with this X.25 1984 ?

New Member

Re: X25 facilities problem on 2503 router


Do you have solve your problem as I actually have the same one with a CISCO 3640 router.

I've just open a case to CISCO. But if you have solve your pb please help...

I will inform you about my test.

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