Unallocated prefix 100.10.10.0/24 in the DFZ via Cogent
Calling Cogent, Avantel (AS 6503) and Axtel (AS 14000): Axtel is announcing 100.10.10.0/24, which is within the 100.0.0.0/8 block, which is unallocated according to http://www.iana.org/assignments/ipv4-address-space/ 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@nethelp.no
What all good advertised, unallocated prefixes do... send mail... (senderbase shows a fair amount of volume) On Tue, Dec 23, 2008 at 12:09 PM, Adrian Chadd <adrian@creative.net.au>wrote:
On Tue, Dec 23, 2008, sthaug@nethelp.no wrote:
Axtel is announcing 100.10.10.0/24, which is within the 100.0.0.0/8block, which is unallocated according to
I'd love to see what that prefix is doing.. :)
Anyone have anything they can share?
adrian
On Tue, 23 Dec 2008 sthaug@nethelp.no wrote:
Calling Cogent, Avantel (AS 6503) and Axtel (AS 14000):
Axtel is announcing 100.10.10.0/24, which is within the 100.0.0.0/8 block, which is unallocated according to
As long as someone's trying to bang a few clues into Axtel, they might suggest to them that they clean up their announcements and look into aggregating the /23s in 201.158.192/18 and maybe even announcing the covering CIDR if they refuse to get rid of the deaggregation. ---------------------------------------------------------------------- Jon Lewis | I route Senior Network Engineer | therefore you are Atlantic Net | _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
participants (4)
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Adrian Chadd -
Chris Stebner -
Jon Lewis -
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