What we've ended up doing is changing get_myaddr() in snmplib/system.c which works; the primary IP address (the address returned by gethostbyname) is sent in the SNMP pdu. [Rob, I've sent you the changed system.c]
The existing code was clearly incomplete, per the comment: /* XXX What if we have multiple addresses? Or no addresses for that matter? * XXX Could it be computed once then cached? Probably not worth it (not * used very often). */ While the new get_myaddr() works, I don't know for sure if it's correct/safe for all platforms. It would be best if someone involved in net-snmp development could have a look, so we can get a robust fix incorporated in the development source base. Russell Bell -----Original Message----- From: Robert Story [mailto:[EMAIL PROTECTED] Sent: Saturday, 13 August 2005 9:21 AM To: Russell Bell Cc: net-snmp-users@lists.sourceforge.net Subject: Re: how to specify source IP address / interface when sending traps (with Solaris IP multipathing ) On Tue, 9 Aug 2005 18:04:06 +1000 Russell wrote: RB> The problem that we are facing is that we are running in a Solaris IP RB> multipathing network configuration, eri0 and qfe0 being the physical RB> interfaces, and qfe0:1 being the floating IP address. The traps being RB> sent by snmpd are arriving at the trap recipient host with the source IP RB> address of the eri0 interface (192.168.101.19). RB> RB> The 3rd party software requires that incoming traps have a source IP RB> address that matches the floating IP address (interface qfe0:1) of the RB> trap sender. RB> RB> How can we configure NetSNMP to use the floating IP address as the source RB> address when sending traps ? RB> RB> We have tried setting "clientaddr" and starting the snmpd process as RB> "/usr/local/sbin/snmpd udp:203.52.xx.yyy", without success. Well, those were going to be my two suggestions. The OS selects the IP address, so you might have to dig into the kernel docs to find out how to specify the correct source address, so that the code for clientaddr can be updated. Just to check, where and how did you specify clientaddr? -- NOTE: messages sent directly to me, instead of the lists, will be deleted unless they are requests for paid consulting services. Robert Story; NET-SNMP Junkie Support: <http://www.net-snmp.org/> <irc://irc.freenode.net/#net-snmp> Archive: <http://sourceforge.net/mailarchive/forum.php?forum=net-snmp-users> You are lost in a twisty maze of little standards, all different. ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ Net-snmp-users mailing list Net-snmp-users@lists.sourceforge.net Please see the following page to unsubscribe or change other options: https://lists.sourceforge.net/lists/listinfo/net-snmp-users
