VPN Speed And NIC

VPN connection speeds are influenced by numerous factors. The total amount of VPN and Internet traffic being handled by your Proxy, your remote users Internet connection speed (DSL, Cable, 56K), and your Proxy's Internet connection speed are some ofthese factors. For example, if the remote user connects to his ISP via a cable modem, and your Proxy connects via ISDN, then your ISDN is the bottleneck. A NIC runs at 10 or 100 Megabits per second, and would never be the bottleneck.

Generally, no. Even a 10BaseT NIC is much faster than the usual communications channels over which VPN sessions are carried.

However, there are some unusual scenarios like a FastEthernet Metropolitan Area Network (MAN) where the user's NIC couldbe a factor.

However, I have heard of cases where there seemed to be some driver issues that resulted in certain NICs not playing nicely with VPN. But these weren't speed issues, per se.

paul

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