Re: Routing packets to RFC1918 address over internet

"Pascal Hambourg" <boite-a-spam@xxxxxxxxxxxxxxx> wrote in message
news:g46f2o$2h1o$1@xxxxxxxxxxxxxxxxxxxxx
Martijn Lievaart a écrit :
What you have to understand is that routing takes place on the
destination address. [...]

This is all nice, but RFC 3330 states about the three private blocks :
Addresses within this block should not appear on the public Internet

And RFC 1918 states :
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.

A "should" requirement may be ignored if and only if there is a very
good reason to do so. What may be the good reason to send traffic with a
private address to a destination on another network ? I do not believe
that ISP's and carriers suffer from public address shortage.

Internally, they're using 10.0.0.0/8, but what you might not be seeing is
the Network Address Translation (NAT) being done at their border router as
the packets cross into and from their network to/from the Internet.

The border router is at IPv4 address 207.46.34.189.

Aside, you expect Micro$oft to follow the rules of the Internet? They often
don't.


.

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