[Soekris] 4801 and 802.11b / IPSec

Michael Smith msmith at cbnco.com
Mon Nov 10 23:29:32 UTC 2003

On Mon, 10 Nov 2003, Walter Wickersham wrote:

> Done any testing (speed, mbit/sec.) using a ipsec tunnel between two
> net4801's

Yes, with AES128 we were seeing about 1 Mbyte/sec (UDP transfer). With
AES256, 900 KByte/sec. This was Linux 2.4 + FreeS/WAN with the ipsec_algo

> And... If anybody has done the above using a 802.11b(or other) wireless
> link between the two 4801's, and what speeds they got during testing.

Yes, but I don't remember the speed we got. :)

I remember with net4521s doing wireless without encryption using PCMCIA
802.11b cards, we were seeing about 500-600 KBytes/sec (TCP). With 3DES it
was down to 250-300 KBytes/sec. Using a net4801 instead, you might be able
to get up to 600 KBytes/sec. I don't think I was seeing transfer speeds
quite that fast.


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