Re: [NANOG] peering between ASes

2008-05-17 Thread Nathan Ward
On 17/05/2008, at 5:53 PM, Matthew Moyle-Croft wrote: > Nathan Ward wrote: >> If the foreign AS really wants to send you routes that way, they >> can do it regardless of how you stop your advertisements being >> accepted by/ reaching them. We're hardly talking high security here. >> >> ip rout

Re: [NANOG] peering between ASes

2008-05-16 Thread Matthew Moyle-Croft
Nathan Ward wrote: > If the foreign AS really wants to send you routes that way, they can > do it regardless of how you stop your advertisements being accepted by/ > reaching them. We're hardly talking high security here. > > ip route 1.1.1.1 works a treat. > I'm not quite sure of your po

Re: [NANOG] peering between ASes

2008-05-16 Thread Nathan Ward
On 17/05/2008, at 5:30 PM, Matthew Moyle-Croft wrote: >> If you really need to, you can get a similar effect by using >> ASPATH poisoning; just prepend your AS paths with the ASes you >> don't want those prefixes hitting. >> >> .. >> Nothing really about how it works in a MLPA IXP though. >>

Re: [NANOG] peering between ASes

2008-05-16 Thread Matthew Moyle-Croft
> If you really need to, you can get a similar effect by using ASPATH > poisoning; just prepend your AS paths with the ASes you don't want > those prefixes hitting. > > .. > > Nothing really about how it works in a MLPA IXP though. > It'd work, but it's a pretty evil thing to do and it's

Re: [NANOG] peering between ASes

2008-05-16 Thread Nathan Ward
On 17/05/2008, at 5:05 PM, Matthew Moyle-Croft wrote: > Some MLPAs give you some control over routing (eg. don't send my > prefixes to AS), but a lot don't. If you really need to, you can get a similar effect by using ASPATH poisoning; just prepend your AS paths with the ASes you don't want

Re: [NANOG] peering between ASes

2008-05-16 Thread Matthew Moyle-Croft
Kai Chen wrote: > >> There is the model where all partcipants peer through agency of 3rd party. >> That tends to be looked on as an extremely bad idea, but some regulatory >> environments encourage or enforce that sort of behavior particularly around >> the monopoly PTT. >> > > > I don't know

Re: [NANOG] peering between ASes

2008-05-16 Thread Nathan Ward
On 17/05/2008, at 3:52 AM, Kai Chen wrote: > Sure, two ASs may peer with each other at multiple locations, I do > want to > know in each of these peering location, if there exist multi-access > between > these two ASes. If you're looking for some rules about how this must work, you won't fi

Re: [NANOG] peering between ASes

2008-05-16 Thread Kai Chen
2008/5/16 Joel Jaeggli <[EMAIL PROTECTED]>: > Kai Chen wrote: > >> Hi, here is a quick question. >> 1. Beside public peering in IXP and private peering between two dedicated >> ASes, are there any other interconnection models in the current Internet? >> > > There is the model where all partcipants

Re: [NANOG] peering between ASes

2008-05-16 Thread Joel Jaeggli
Kai Chen wrote: > Hi, here is a quick question. > 1. Beside public peering in IXP and private peering between two dedicated > ASes, are there any other interconnection models in the current Internet? There is the model where all partcipants peer through agency of 3rd party. That tends to be looke