nanog mailing list archives

Re: IPSEC VPNs capable of handling worm traffic


From: Daniel Golding <dgolding () burtongroup com>
Date: Wed, 19 Nov 2003 19:15:40 -0500


All of these cute references to "vendor c" and "vendor n" go by the wayside
when we slip and say "Nortel" or refer to "CEF". :)

IMHO, if you aren't breaking an NDA, you might as well name names. If you
are breaking an NDA, using initials won't screen you from legal jeopardy...

- Daniel Golding

On 11/19/03 6:27 PM, "Magnus Eriksson" <magnus () eriksson mu> wrote:


The last 2 days I've been fighting against the Nachi ICMP onslaght on a
customer network.

Problem is that the "random" destination traffic seem to kill my VPNs by
vendor N. CPU is consumed, probably due to trying to maintain/update
route cache. Or maybe it hits it's pps limit.

Ordinary traffic req. is approx. 10 Mbit/s mixed traffic.
Worm traffic I would like to be able to handle is approx 2-3kpps.

Anyone know of any VPN boxes/routers with VPN capability that is better
able to handle the onslaught? Is vendors C's boxes better than Nortel's?
Is CEF going to help me? Or is the problem pps related?

Will it help to throw a bigger box at the problem?

Any advice greatly appreciated.

Regards
Magnus - Sweden






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