using non-default MTU for some hosts

[Matthew Dillon]

:How do you even add an explicit route to a machine already on the local
:network? Did anybody ever try that? Thanks!
:
: -mi

    You can specify the -interface option to the route command like this:

dhcp61# route add -host 216.240.41.3 -interface em0 -mtu 5000
add host 216.240.41.3: gateway em0

dhcp61# route get 216.240.41.3
   route to: 216-240-41-3.ip.idiom.com
destination: 216-240-41-3.ip.idiom.com
  interface: em0
      flags: <UP,HOST,DONE,LLINFO,STATIC>
 recvpipe  sendpipe  ssthresh  rtt,msec    rttvar  hopcount      mtu     expire
       0         0         0         0         0         0      5000         0 

    Note that it is a common mistake to try to 'route change' a route that
    has not been added, e.g.:

    route change 216.240.41.23 -mtu 5500

    If you do this without first adding the route as above you will wind up
    'changing' your network route or your default rather then the host
    route(!).

					-Matt
					Matthew Dillon 
					<dillon at xxxxxxxxxxxxx>