Slow BOVPN between fireboxes, watchguard

Posted on 2009-05-18
Last Modified: 2013-11-16
Hi -

I've recently set up a BOVPN between an Watchguard Firebox X1250e (Site A) and X550e (Site B). Performance between the two sites is very poor now. This is at University, site A has a 100mb connection, site B has a 10mb connection. FTP'ing 100mb dummy file from Site A to Site B runs at 100kb/s which I think is way too slow.

When I do a speed test to the internet from Site B (using DSL reports) I get about 250kb/s for up/down. Site A does 7500kb/s down 1000kb/s up.

Does anyone have ideas for ways to speed up the connection?
Question by:futureman0
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Expert Comment

ID: 24414494
Slowest speed among devices would determine the overall transfer speed on the tunnel; as you get 250 kbps @ site B; getting 100kbps using VPN, i would say, is a good speed.

When you configure VPN, you configure encryption and this slows down things, higher the encryption-bit lower the speed. With lower strength cipher, the speed would be better, but the security would be less.

Thank you.

Accepted Solution

futureman0 earned 0 total points
ID: 24414711

Well it turns out it was a pretty quick fix. The firebox at Site B needed to have 10mb full duplex set manually on the external interface. Once the change was made, the massive amount of packet loss ended and traffic from Site B to A increased from 100kb/s to 8.5mbits/s :)
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Expert Comment

ID: 24420483
Good to know that problem is solved; thank you for the update! :)

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