IPv6 Deployment for the LAN

Sun Oct 18 11:55:36 UTC 2009

"This is a real problem even for people who are not using IPv6 right now and
have no desire to use IPv6 yet, because Rogue RAs will redirect all IPv6
traffic to a rogue 
box on the LAN"  

Answer = "RA Guard" - push your vendor-of-choice to implement it :).

/TJ
-----Original Message-----
From: Chuck Anderson [mailto:cra at WPI.EDU] 
Sent: Sunday, October 18, 2009 4:52 AM
To: nanog at nanog.org
Subject: Re: IPv6 Deployment for the LAN
<snip>
Unfortunately, no.  Many/most LAN switches don't support filtering 
IPv6 traffic yet.  Of those that do, most only support TCP/UDP ports 
but not ICMPv6 types or RA specifically.  Therefore, right now it is 
probably easier to find support to filter DHCPv6 (udp source port 547) 
than it is to find support to filter RA.  This is a real problem even 
for people who are not using IPv6 right now and have no desire to use 
IPv6 yet, because Rogue RAs will redirect all IPv6 traffic to a rogue 
box on the LAN, breaking access to dual-stack servers on the Internet.  
The impact is worse when you start trying to roll out IPv6 dual-stack 
to selected servers on your own LAN.