nanog mailing list archives
Re: RU evidently hijacked UA netblock
From: "Scott Weeks" <surfer () mauigateway com>
Date: Fri, 4 Mar 2022 18:46:47 -0800
--- jay () west net wrote: On 3/4/22 18:03, Scott Weeks wrote:
It looks like a 'too many' AS prepends, but it is only 250 prepends.
In most reasonable scenarios I'd say that this qualifies as too many. --------------------------------------------- Yeah, technically, but it was not 256 or something where I'd expect an issue to happen. Just curious as to why only that ASN caused the buffer overflow messages as I got them from no other AS ever and wondered if anyone else has seen them. Other ASNs almost certainly have sent 250+ prepends to me before, but they did not cause the overflow. Like I said, I have a ticket open because I am curious: BGP-WARNING-tBgp4RouteInvalid-2007 <stuff> Route invalid reason - Cannot add/prepend AS-path. Buffer overflow\nNRLI - <prefix> where prefixes are several and different lengths. Probably nothing, but I always look into stuff I see in the syslog server's router.log. scott
Current thread:
- RU evidently hijacked UA netblock George Herbert (Mar 04)
- <Possible follow-ups>
- Re: RU evidently hijacked UA netblock Scott Weeks (Mar 04)
- Retracted: Re: RU evidently hijacked UA netblock George Herbert (Mar 04)
- Re: RU evidently hijacked UA netblock Jay Hennigan (Mar 04)
- Re: RU evidently hijacked UA netblock Scott Weeks (Mar 04)
- Re: RU evidently hijacked UA netblock Erik Sundberg (Mar 04)