Jared, Fine which makes it an interesting data point and something to look at after lunch when I'm not doing something else kinda issue. Not something I'm going to treat as a P1 and drop everything work or real life related for. I'm not say it shouldn't be looked it, just that in the grand scheme of the thing its not a huge issue. Kinda like when people feel the need to tune IGP time sub second convergence but do impactful maint on routers or circuits 3-4 times a yr. If you lock the doggie door but leave the front door open the bad guys can walk right in. :) -jim On Tue, Jan 13, 2009 at 11:06 AM, Jared Mauch <jared@puck.nether.net> wrote:
On Tue, Jan 13, 2009 at 07:00:34AM -0800, David Barak wrote:
If the concern was a Pilosov/Kapela style hijack, wouldn't the first thing you'd check be what the address range was? That would lead you straight to Randy, and that should have cleared up the matter straightaway. Remember: the owner of the IP space is the victim, not the ASN which gets prepended into the path...
No, they are both victims. If I inject a path that purports there is an edge between two networks which are engaged in a bitter dispute, (i'll use cogent & sprint as an example) - _1239_174_ that may create a situation where someone asserts that their routes are being filtered when infact no connectivity exists.
Does that mean that I hijacked their identiy and forged it? What level of trust do you place in the AS_PATH for your routing, debugging and decision making process?
Personally, I would be upset if someone injected a route with my ASN in the AS_PATH without my permission.
- Jared
-- Jared Mauch | pgp key available via finger from jared@puck.nether.net clue++; | http://puck.nether.net/~jared/ My statements are only mine.