Thibor 15b WRTSL54GS Jumbo Frames/Port forwarding

Discussion in 'HyperWRT Firmware' started by chodaboy19, Jul 1, 2006.

  1. chodaboy19

    chodaboy19 LI Guru Member


    I have a WRTSL54GS with Thibor 15b and I have a problem when I use port forwarding with jumbo frames enabled.

    I have a PC with intel 1000MT 9k jumbo frames, connected to a jumbo frame capable switch then connected to the WRTSL54GS. When I try to remote desktop with JUMBO frames enabled I get a black screen. I disable JUMBO frames and it works perfectly.

    I am posting this because my old DI-624 worked fine with JUMBO frames enabled when port forwarding for remote desktop.

    I know that if it's 100mbps it should not even care about jumbo frames, only when it's 1GigE should Jumbo frames matter at all...

    I appreciate any help. Thank you.
  2. chodaboy19

    chodaboy19 LI Guru Member

    I had it working with MTU size set to Manual:1500

    Then I upgraded to 15c and now it doesn't work with JUMBO frames enabled on my PC...

    Any changes for 15c that would cause this??
  3. Thibor

    Thibor Super Moderator Staff Member Member

    not a single one, no
  4. Toxic

    Toxic Administrator Staff Member

    it there any way the Switch can be setup for jumbo frames to be disabled when going to thr WRTSL54GS ?
  5. chodaboy19

    chodaboy19 LI Guru Member

    I have a dummy switch so I can't really control what is sent to the router...
    I was under the impression that the switch only sends jumbo frames to 1GigE clients/connections and any 100mpbs automatically gets 1500 sized packets.

    What is strange is that I had it working perfectly with 15b and MTU set to Manual 1500, then I upgraded to 15c and it no longer works. Everything works fine if I disable jumbo frames on my PC, but I have a NAS and it really benefits from having jumbo frames enabled.

    Oh well, I guess it's just one of those things I'll have to live with.

    Thanks for the hardwork so far. :)
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