10-07-2021 02:17 PM
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
10-07-2021 03:00 PM
Hello,
this is I assume an eBGP connection ? Post the output of:
show ip bgp summary
10-07-2021 03:07 PM
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
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