Problem with VPN and LinkSYS BEFSX41

Ted Mittelstaedt tedm at
Wed Mar 14 09:42:19 UTC 2007

We had the same problem last year when we ran a tunnel between a Cisco
7200 running Cisco IOS and a BEF SX 41.  Keep in mind that Cisco
now owns Linksys.  In short, the owners of Linksys obviously know
that the Linksys product is garbage but they have not released a fix
for it's firmware.

I rechristened that particular model the BEF SUX 41.  It seems to fit.

Eventually the BEF burned up and I was rid of dealing with it.  Hoo Boy
the customer lost $50 that they spent on it!!

Moral of the story:  Crappy hardware does not a stable network make.

While you probably won't want to give Linksys any further business,
you should know that the Linksys RV042 is a vastly superior implementation
of the same product.


----- Original Message ----- 
From: "Alexey Zakirov" <arz at>
To: <questions at>
Sent: Tuesday, March 13, 2007 1:13 AM
Subject: Problem with VPN and LinkSYS BEFSX41

> Hello!
> Situation: FreeBSD 5.3-Release + pf + racoon at local end and LinkSys
> BEFSX41 v2.1 firmware 1.52.9 at remote.
> Lifetime of phase 1 and phase 2 is the same and equal 3600 sec.
> Tunnel is getting up. I use setkey -D to SAD entries. There are 2
entries -
> inbound and outbound. OK
> When lifetime ends, there become 3 SAD entries - 1 outbound and 2 inbound.
> Number of inbound SAD entries is growing until tunnel goes down.
> Please help me, what's the cause?
> Yours,
>   Alexey Zakirov
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