I run netstat -i fxp0 while _innside_ a jail:

Name  Mtu   Network       Address            Ipkts Ierrs    Opkts Oerrs
fxp0  1500  10.10.10.10/ host             7908671     -    39559     -

and then, I transfer a large file from the jail to some external host.


Name  Mtu   Network       Address            Ipkts Ierrs    Opkts Oerrs
fxp0  1500  65.248.2.133/ host             7910577     -    41292     -


The file I transferred out was 4.3 megabytes.  Opkts only increased by
1733 ... which means 2481 bytes per packet ... but ifconfig tells us:

# ifconfig -a
fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500

that the MTU is 1500 bytes.

So, am I missing something, or is something pathological happening here ?

thanks.


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