dear everbody,
i have working to compress/decompress the packets.
i know there are various schemes and facilities to
do so in the freebsd, i have developed the
compression facility myself.
i am just a beginner in freebsd programming and
overall
in network programming.
since i compress packet i add 2 byte custom header.
now the problem is when the MTU sized packet is
incompressible, i still add my 2 bytes which exceeds
the MTU (1500) and the size becomes 1502.
there was two options for me :
either fragment the packet or increase the mtu.
i don't want to fragment the packet as i think
that is too much overhead for 2 bytes. rather i
want to increase the mtu.
i tried
-->ifconfig xl1 mtu 1502
but it gave the message:
-->ifconfig: ioctl (set mtu): invalid argument
How can i increase the MTU ???
Will it have any effect whatsoever ???
i guess ethernet should support MTU of 1502. isn't it
correct ??
help !!
kamal
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