Re: pass_persist agent doesn't work with snmpwalk (probable noob question)
OoO En cette nuit nuageuse du samedi 17 mars 2012, vers 00:02, Charlie Martin crmar...@sgi.com disait : Use: snmpwalk -On -v 2c -c copan psmdev1 1.3.6.1.4.1.59.1.5.3.1.1 1020 $ snmpwalk -On -v 2c -c copan psmdev1 1.3.6.1.4.1.59.1.5.3.1.1 .1.3.6.1.4.1.59.1.5.3.1.1 = No Such Instance currently exists at this OID Which actually corresponds to the overall problem I'm trying to figure out. So, let's say I send snmpget -On -v 2c -c copan psmdev1 1.3.6.1.4.1.59.1.5.3.1.1 You should get No such instance and snmpgetnext -On -v 2c -c copan psmdev1 1.3.6.1.4.1.59.1.5.3.1.1 You should get 1.3.6.1.4.1.59.1.5.3.1.1.1 = 9 (if I remember correctly) Maybe you don't handle this last bit in your pass_persist script: if the requested OID is less than the first OID you can serve, you must return the first OID you can serve. snmpwalk 1.3.6.1.4.1.59.1.5.3.1.1.2 does agetnext on 1.3.6.1.4.1.59.1.5.3.1.1.2 and get 1.3.6.1.4.1.59.1.5.3.1.1.3 but returns nothing because it is not included in the subtree rooted at 1.3.6.1.4.1.59.1.5.3.1.1.2. -- Vincent Bernat ☯ http://vincent.bernat.im /* Nobody will ever see this message :-) */ panic(Cannot initialize video hardware\n); 2.0.38 /usr/src/linux/arch/m68k/atari/atafb.c -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure ___ Net-snmp-coders mailing list Net-snmp-coders@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/net-snmp-coders
purpose of pipe in netsnmp_callback_send/recv functions
Hello, Is the pipe used in netsnmp_callback_send/recv function, is for synchronization purpose ? If yes, how is this approch better than other synchronisation methods like semaphores as we are storing one character for marking the push/pop from the queue? Thanks and regards S Sarath-- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure___ Net-snmp-coders mailing list Net-snmp-coders@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/net-snmp-coders
SNMPv3 trapsess Definition and Engine ID in 5.7.1
Hi. Is there any syntax change required for trapsess -v 3 or engineIDType statements in snmpd.conf, in Net-SNMP 5.7.1? I'm comparing to 5.6.1. My apologies in advance if this is a duplicate question or posted on the wrong list. I looked at the users, bugs, patches, and coders lists for the past year and didn't see a match. I also posted a similar question on the users list but didn't get any responses. It appears that this trapsess user does not become part of the userList, either in the MIB usmUserTable or the internal userList. Then no trap gets sent, because the USM name wasn't found. There's a new function usm_create_user_from_session() and some logic around the presence/timing of the engine ID. The function isn't running due to an apparent engine ID length of 0. I do have an engineID, generated by engineIDType 3 and present in /var/net-snmp/snmpd.conf. The code that handles the trapsess directive, snmpd_parse_config_trapsess(), calls snmp_add, which fails for this session due to a zero engineIDLength. Snmp_add() is followed by the function snmpv3_get_engineID() and a memdup() which might have put the engineID in the session where it was needed. This is just a guess on my part, because there's also code that would seem to probe for an engineID. It was my understanding that a probe for the engineID wouldn't be done when snmpd sends a trap, and that instead it would use the engineID of snmpd. I made a workaround by generating the equivalent of the type 3 engineID in usm_create_user_from_session, and adding it to the session there. But it's not a general solution. Thanks for your help. Gary Gary Dunlap -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure___ Net-snmp-coders mailing list Net-snmp-coders@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/net-snmp-coders
