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<DIV><SPAN class=437292815-11092002><FONT face=Verdana
size=2>Everyone,</FONT></SPAN></DIV>
<DIV><SPAN class=437292815-11092002><FONT face=Verdana
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=437292815-11092002><FONT face=Verdana size=2>I have a customer
that is multihomed, to a public ISP and to another large network that uses
10.0.0.0 address space. The private address space also has services
available via public address space and consequently is running a split DNS
service, public and private. Because of firewalls and the placement of DNS
servers this customer has a nasty routing situation and in order to make DNS
work for the private numbers, has spoofed the domain of the private
network. My question is this: are there any documents or RFCs that outline
what is an acceptable practice for running DNS and what is not? Their
kluge of a network causes continuous problems for both the upstream ISP and the
private network to which they are connecting and we may find ourselves in a
situation where we have to say that 'xyz' is an acceptable way of operating and
'abc' is not. Any advice is appreciated. Thanks!</FONT></SPAN></DIV>
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<DIV align=left><FONT face=Verdana size=2>Dan
Lockwood</FONT></DIV></BODY></HTML>