I've heard rumors from our Cisco acct SE that FWSMv2 will do IPv6 in Hw;
right now with transparent mode one can pass IP protocol type 41 but can
not actually write any IPv6 ACLs.
--
Regards,
Ge Moua
Network Design Engineer
University of Minnesota | OIT - NTS
--
On 6/24/10 11:09 AM, Benjamin Lovell wrote:
Did a quick search and found that IPv6 packet are still processed by
the CPU not the ASICs on the FWSM. Also only works in routed, not
transparent mode. I don't know any hard numbers for forwarding
performance for the CPU but I would guess it's unacceptably low.
As for software versus architecture limitation, it's tough to say. I
would guess architectural limitation but either way I doubt it will
change as FWSM is near the end of it's life cycle for new feature
development.
-Ben
On Jun 24, 2010, at 7:59 AM, Matthew Melbourne wrote:
Are there any real-world data available for the performance of the
FWSM when using IPv6 (actually multi-tenant IPv6 and IPv4). A
Networkers' presentation I saw suggested that IPv6 forwarding was
punted to the CPU rather than performed in hardware; is this still the
case and is it an architectural issue which cannot be addressed
through software?
Cheers,
Matt
--
Matthew Melbourne
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