What / how do I construct a routing raw socket call to retrieve the
outgoing interface index for a particular route that is destined out of
an interface other than Ethernet such as a point to point?
With Ethernet interfaces I was able to contruct a rt_msghdr with RTM_GET
and RTA_DST- retrieve the gateway IP for the route then recursively call
the same function passing the gateway IP and the sock_addr_in
->sin_addr.s_port would return with the interface index.
But this does not work with PPP interfaces or other non-Ethernet. Any
insight to what i am lacking in the route request would be appreciated.
Thanks,
_Martin
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