Keep getting "unsupported or mal-formatted message received"

[Abdallah Hagedriss]

I'm trying to run BGP between cisco 4351 router and ISP. For some reason, I keep getting the following message:

%BGP-4-MSGDUMP: unsupported or mal-formatted message received from 196.X.X.X:

FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 002D 0104 FFFF 00B4 C401 D817 1002 0E01

[Georg Pauwen]

Hello,

this is I assume an eBGP connection ? Post the output of:

show ip bgp summary

[pman]

please check:
1. that you entered the ASN of neighbor correctly
2. Router ID is correct on each side

Please add the output of:

- show ip bgp sum
- Please attach the whole log