Changes between Initial Version and Version 1 of 271-i-can-ping-through-the-tunnel-but-any-real-work-causes-it-to-lock-up-is-this-an-mtu-problem


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Timestamp:
01/30/14 16:11:42 (10 years ago)
Author:
Samuli Seppänen
Comment:

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  • 271-i-can-ping-through-the-tunnel-but-any-real-work-causes-it-to-lock-up-is-this-an-mtu-problem

    v1 v1  
     1= I can ping through the tunnel, but any real work causes it to lock up. Is this an MTU problem? =
     2
     3{{{
     4#!html
     5<p>Probably. It's best to change the <strong>mssfix</strong> parameter rather than directly changing the MTU of the TUN/TAP adapter. For example:</p>
     6<blockquote>
     7<pre><strong>mssfix 1200</strong></pre>
     8</blockquote>
     9<p>You could also combine this with:</p>
     10<blockquote>
     11<pre><strong>fragment 1200</strong></pre>
     12</blockquote>
     13<p>Note however that <strong>fragment</strong> will exact a performance penalty.</p>
     14<p>Common values to try for <strong>mssfix</strong>/<strong>fragment</strong>: 1200, 1300, or 1400.</p>
     15<p>Note that while <strong>mssfix </strong>only needs to be specified on one side of the connection, <strong>fragment</strong> should be specified on both.</p>
     16}}}
     17
     18[wiki:FAQ Return to FAQ]