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SSL vpn 10mb

avaserman@craigross.com
Hello Everybody,
I experiencing some issue with SSL VPN
I have in office 100mb up/down and in my home 25mb.
When I open connection via SLL VPN Utm 220 I get maximum 10Mb , and nic from Sophos ssl shows 10 MB as well.When I open the PPTP or L2TP i get maximum speed 25mb what provided give me .
I just wondering if that some bug  or only me experiencing that issue with connection limit?


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  • 0
    Hi,

    we also had the issue with slow SSL-VPN for Remote Access although we have a 100/12Mbit/s at the office and a synchronous 1Gbit/s at the datacenter. It turned out that the UDP Flood Protection throttled the connection.

    We have created an IPS->Exception for UDP Flood Protection (disabled) for all UDP connections on that specific SSL-VPN Port and Interface/IP we use for it and now we get the full 100Mbit/s to the datacenter for downloads and about 6-7Mbit/s upstream to the datacenter where both was limited to 2Mbit/s before (with UDP Flood enabled for everything).

    Hope it helps!
  • 0 in reply to guawhitehawk

    We have the same exact problem with a SG230, the SSL VPN seems limitted to 10Mbps even though we have 300/100Mbps in the remote site where the firewall is and 100/10 in the office.

    The current configuration is UDP, no compression, SHA2 256, Key size 2048 bit, AES-256-CBC. We have tried TCP and other combinations with the algorithms with no luck. IPS and flood protections are disabled.

  • 0 in reply to JonFranco

    Jon, what result do you get withSHA1, 1024 and AES-128-CBC?  Watch the Intrusion Prevention Live Log when you try.

    Cheers - Bob

  • 0 in reply to BAlfson

    Hi Bob,

    Same results, with Intrusion Prevention completely off.

  • 0 in reply to JonFranco

    Actually, it was the other things in that log that might be of interest.  Snort rarely causes these issues, but Anti-DoS Flooding can.

    Cheers - Bob

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