On Mon, 26 Feb 2001, Bradley J. Wilson wrote:
> ElephantChild wrote:
>
> RFC 1918, section 3:
>
> "[...]Because private addresses have no global meaning, routing
> information
> about private networks shall not be propagated on inter-enterprise
> links, *and packets with private source or destination addresses
> should not be forwarded across such links.*"
>
> ...But that's not what's happening in the case of the traceroute which
> started this discussion. The only reason we're seeing those private
> addresses is because we're basically snooping around in someone else's
> network. RFC 1918 is still being upheld - privately-addressed traffic is
> not being forwarded over inter-enterprise links.
and the packets being sourced or destined are not being done from rfc1918
space, just passing thru it.
>
> The difference is this: "information about private networks shall not be
> *propogated*"...meaning my routers must not actively advertise my private
> networks to external ASes. Well, okay - the ISP isn't doing that. But when
> we trace through a network using private addresses, we will see them - we're
> snooping around, but the routers aren't actively propogating those private
> numbers.
>
> I'm excited about IPv6...but if we can make v4 last a little while longer,
> hey, let's do it. ;-)
>
> BJ
>
>
>
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