Re: GRE devices and MULTICAST flag.
flat view
From: Ben Greear <hidden>
Date: 2011-09-23 20:42:53
On 09/23/2011 12:56 PM, Ben Greear wrote:
I was under the impression that GRE tunnels could support MULTICAST traffic, but the MULTICAST flag is not set. This is making the xorp router crap out because it checks the MULTICAST flag and will not start multicast on the interface if it's not set.... Is it supposed to be set? 7: gre0: <NOARP,UP,LOWER_UP> mtu 1476 qdisc noqueue state UNKNOWN link/gre 0.0.0.0 brd 0.0.0.0 8: netb: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1476 qdisc noqueue state UNKNOWN link/gre 192.168.100.223 peer 192.168.100.138 inet 10.0.1.1/32 scope global netb
Well, ifconfig netb multicast seems to add the flag, so maybe all is as it should be. Thanks, Ben -- Ben Greear [off-list ref] Candela Technologies Inc http://www.candelatech.com