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updated manpage

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Erik Ekman 2009-01-10 20:53:09 +00:00 committed by Erik Ekman
parent 8906264a0a
commit b5eda882a1
1 changed files with 9 additions and 4 deletions
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13
man/iodine.8
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@ -11,6 +11,8 @@ iodine, iodined \- tunnel IPv4 over DNS
.I user
.B ] [-P
.I password
.B ] [-m
.I fragsize
.B ] [-t
.I chrootdir
.B ] [-d
@ -85,6 +87,11 @@ and otherwise tunX.
Use 'password' to authenticate. If not used,
.B stdin
will be used as input. Only the first 32 characters will be used.
.SS Client Options:
.TP
.B -m fragsize
Maximum downstream fragsize. Not setting this will cause the client to probe
the maximum accepted downstream packet size.
.SS Server Options:
.TP
.B -c
@ -214,10 +221,8 @@ 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.
These issues should be solved now, with automatic fragmentation of downstream
packets. There should be no need to set the MTU explicitly on the server.
.SH BUGS
File bugs at http://dev.kryo.se/iodine/
.SH AUTHORS