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PIX 501 <-> VPN CLient 4.6 Slow VPN - Normal traffic fine

Hi,

we are using VPNC 4.6 to hook up to the PIX 501.

Normal io from the inside to the outside is fine.

But when we hook up to the MS Server or Linux boxes on LAN using VPN, the connection behaves like an old fashion 56K modem.

The dsl speed is 2000/500.

But the highes bit rate that we can achieve peaks at 168Kb, with an average of 80Kb. The rate changes from 32Kb to 168Kb constantly.

The show interface command reveals no errors.

We are using a rather high encryption, 3DES-168 bit. But the CPU and the mem util is low.

Can anyone point us in the right direction?

Thanks,

Geir

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