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Add mtu info to manpage

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Erik Ekman 2007-06-24 10:04:02 +00:00
parent 42fcc07379
commit 63f9098aa0
1 changed files with 6 additions and 0 deletions
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man/iodine.8
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@ -179,6 +179,12 @@ The normal case is to route all traffic through the DNS tunnel. To do this, firs
add a route to the nameserver you use with the default gateway as gateway. Then
replace the default gateway with the servers IP address within the DNS tunnel,
and configure the server to do NAT.
.TP
.B MTU issues:
Some relaying DNS servers enforce a 512 byte packet limit. All larger packets are
simply dropped. If you can ping through the tunnel but not login via SSH, this is
most likely the case. Set the MTU on the server to 220 to ensure that all packets
are less than 512 bytes. This will however greatly affect performance.
.SH BUGS
File bugs at http://dev.kryo.se/iodine/
.SH AUTHORS