Unallocated prefix in the DFZ via Cogent

sthaug at nethelp.no sthaug at nethelp.no
Tue Dec 23 19:55:34 UTC 2008

Calling Cogent, Avantel (AS 6503) and Axtel (AS 14000):

Axtel is announcing, which is within the block,
which is unallocated according to


I am seeing this from two of my transit providers, the common AS path is:

	174 6503 6503 6503 6503 6503 14000

Prefix filtering is a good thing, please do it!

Steinar Haug, Nethelp consulting, sthaug at nethelp.no

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