Re: Shim6 proxies

["Per Heldal" <heldal@eml.cc>]

On Thu, 20 Apr 2006 13:54:59 +0200, "Brian E Carpenter"
<brc@zurich.ibm.com> said:
> Actually, the sending host could theoretically use a different default
> gateway for each different source address. 

That should be the default behavior as RPF should be applied by each
transit provider in a shim environment. We don't want to endorse
routing-schemes in v6 which are wide open to spoofing. 

>                                     That could be used as a back door
> method
> for choice of exit router, without needing to touch router behavior.

While this is relatively easy when you've got a single subnet connected
to multiple providers, it'll be a challenge to make such routing work in
a complex network where there may be many hops between the shim-host and
the egress router. Egress-routers connecting to different providers may
also be several hops apart. It's not impossible, but some may see this
as
a reason to restrict shim6 to smallish sites.

//per
-- 
  Per Heldal
  http://heldal.eml.cc/