broadcasts over serial type interfaces

[carl_townshend]

hi all, with serial intefaces and frame relay etc, can they forward broadcast and multicast traffic?

[Giuseppe Larosa]

Hello Carl,

on this kind of media to send a multicast or a broadcast requires:

mapping with broadcast option in frame-rel map ip command

and the packet needs to be replicated over each PVC to every neighbor (in a point to multipoint configuration)

on a simple point-to-point serial links with HDLC and PPP the packet is sent out as a unicast packet

Hope to hlep

Giuseppe

[carl_townshend]

so

how would you get eigrp and ospf to work with frame relay etc ? would you need to configure a static mapping for the end routers?

also on the point to point links, how is it sent as a unicast? would the unicast address be the data link layer address of the other sides link ?