David Howells wrote: > I would like to determine through which interface packets sent to a particular > UDP destination will go through, and so determine the MTU size for that > interface. Can anyone suggest a good way of doing this from within the > kernel?
Do a route lookup (ip_route_output_key), then either use dst_mtu to get the PMTU value or dst->dev in case you really want the device's MTU. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
