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 :: Mailing Lists

[ILUG] [OT] private IPs in public dns zones

[ILUG] [OT] private IPs in public dns zones

Kevin Gannon kevin at gannons.net
Wed Jul 18 23:07:36 IST 2001


> well it's official RIPE policy (presumably initiated from IANA) that
> ISPs should use private address space for point to point links and for
> interfaces that do need to be globally addressable.

Hmmmm, its kinda of a pain when all your customers ring you to
say that they cant traceroute to there web site from provider X.

<snip>
> prefectly legal. (although really you should see * * * in the
> traceroute - if you see 10/8, 172.16/12 or 192.168/16 then all the
> routers between you and the router using those private ips are
> misconfigured).
> 

I would doubt that anyone with a Tier 1 network is going to do
packet filtering for these blocks . In fact I would ask questions
of any ISP doing packet filtering for these blocks its not a scaleable 
solution to vogons. They maybe running RPF verify depending on there 
topology you may still see these packets getting through. Using the lossy 
RPF lets some things through.

But I degress RFC1918 address space is evil !.


Regards,
Kevin





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