[Keepalived] Release 0.4.8
ja at ssi.bg
Wed Nov 21 17:16:52 GMT 2001
On Wed, 21 Nov 2001, Alexandre CASSEN wrote:
> * VRRP : Review the multicast socket creating. We bind the socket
> to a specific NIC. inbound & outbound traffic are bound to the
> => why IP_ADD_MEMBERSHIP & IP_MULTICAST_IF doesnt set
> sk->bound_dev_if themself ??? !!!
May be because there is a bug in all kernels. Wensong provided
patch to the maintainers. IP_MULTICAST_IF binds to interface but
it is saved in another place (sk->ip_mc_index). udp_connect() and
udp_sendmsg() behave differently. Of course, you can explicitly
bind to device with SO_BINDTODEVICE as I see it in the following
paragraph. In any case, I don't know what you consider as a bad
behavior (which syscall) - why do you need valid data in bound_dev_if?
> Needed for filter multicasted advert per interface.
> => For inbound binding we use SO_BINDTODEVICE kernel option.
> Best regards,
Julian Anastasov <ja at ssi.bg>
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