Dear Neil, For more information, our secondary IP doesn't response COOKIE_ECHO also. Only our primary IP can response COOKIE_ECHO with COOKIE_ACK. Regards, Andrew On Thu, Nov 7, 2013 at 10:36 AM, tsoi andrew <tsoiandrew@xxxxxxxxx> wrote: > Dear Neil, > > Please find my network diagram first. > Now at server side, can't see our lksctp client 4 connection but only > 2 2 connection. The reason is that heartbeat ACK not found. > > Regards, > Andrew > > On Mon, Nov 4, 2013 at 8:09 PM, Neil Horman <nhorman@xxxxxxxxxxxxx> wrote: >> On Mon, Nov 04, 2013 at 09:59:44AM +0800, tsoi andrew wrote: >>> Dear Sir, >>> >>> I got a problem when set multi-homing to active/active. >>> That mean, It is expected that our lksctp server have 2 IP to connect >>> 2 IP of destination client with total 4 connections. >>> The flow is that client send "INIT" message with 2 (primary and >>> secondary) IP to our server and lksctp server return INIT_ACK. But >>> when second client send 'heartbeat' to us, lksctp server cannot return >>> ACK. >>> Moreover, we already proved our connectivity correct because when our >>> lksctp server send heartbeat to both destination client and they can >>> return ACK. >>> Would you mind sharing if lksctp lib already configure those >>> multi-homing purpose. >>> >> Can you provide a network diagram and a tcpdump of your connection? >> Neil >> >>> >>> >>> Best Regards, >>> Andrew Tsoi >>> -- >>> To unsubscribe from this list: send the line "unsubscribe linux-sctp" in >>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>> More majordomo info at http://vger.kernel.org/majordomo-info.html >>> -- To unsubscribe from this list: send the line "unsubscribe linux-sctp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html