Subject: Multicasting problem
To: None <email@example.com>
From: Andreas Oman <firstname.lastname@example.org>
Date: 09/17/2001 18:03:54
Hi, i have a question regarding multicast routing
The kernel does not send a packet to a multicast destination
if it does not exist in the routingtable even though i've specified
an explicit interface with IP_MUlTICAST_IF with setsockopt().
It is not possible to bypass by setting the SO_DONTROUTE flag either.
Am I required to install a route to 220.127.116.11/4 pointing to some dummy
destiation ? (and a default route is out of the question)
Is this behaviour intentional ?
Or have i missed something when setting up the socket ?
Personally i'd like to see routing to be 100% bypassed if an interface has
been explicit specified for a socket.
Best regards /Andreas