RE: Anyone seen an ipv6 to ipv4 dll and vice versa?

["dave kleiman" <dave () netmedic net>]

I believe just the Wininet.dll has to be replaced.  You can encapsulate IPv6
in IPv4 or vice-versa
"The dual IP layer is an implementation of the TCP/IP suite of protocols
that includes both an IPv4 Internet layer and an IPv6 Internet layer.  This
is the mechanism used by IPv6/IPv4 nodes so that communication with both
IPv4 and IPv6 nodes can occur.  A dual IP layer contains a single
implementation of Host-to-Host layer protocols such as TCP and UDP.  All
upper layer protocols in a dual IP layer implementation can communicate over
IPv4, IPv6, or IPv6 tunneled in IPv4."



Look for IPv6/IPv4 Coexistence and Migration on MSFT.


Dave


 
_____________________
Dave Kleiman
secure () netmedic net
www.SecurityBreachResponse.com

"High achievement always takes place in the framework of high expectation."
Jack Kinder

 

-----Original Message-----
From: secureot [mailto:secureot () yahoo com] 
Sent: Thursday, October 09, 2003 16:11
To: security-basics () securityfocus com
Subject: Anyone seen an ipv6 to ipv4 dll and vice versa?

Hi all,
I have recently heard that there is a dll that is
getting planted on Windows machines out there, that
transforms the encapsulation of packets from IPv6 to
IPv4 and back (hence getting around your firewalls).
I am wondering if anyone knows what that dll is (one
or several)? Has an example of it, knows how to
patch/block it and has experienced it?
Any info would be appreciated...
Thanks,
> :-)
O


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