On Tue, 2 Mar 2010 09:13:29 -0800 Stephen wrote: SH> > I suspect you're putting clientaddr in snmpd.conf instead of snmp.conf. If you SH> > want to do that, you have to prefix it for it to be recognized as a snmp.conf SH> > token.. e.g. SH> > SH> > [snmp] clientaddr 192.168.1.99 SH> > SH> > If that's not the case, further debugging is needed... SH> SH> I put it in snmp.conf. It is a bug, see the patch. Please apply.
I see the patch. It allows clientaddr to be in snmpd.conf without the [snmp] prefix. But clientaddr is a snmp token, and does work in snmpd.conf when properly prefixed. 1) run snmpd with a trapsink and no client address: echo "rocommunity public" > /tmp/snmpd1.conf echo "trapsink 192.168.1.99" >> /tmp/snmpd1.conf snmpd -f -Lo -d -C -c /tmp/snmpd1.conf udp:1161 Sending 44 bytes to UDP: [192.168.1.99]:162->[0.0.0.0] 0000: 30 2A 02 01 00 04 06 70 75 62 6C 69 63 A4 1D 06 0*.....public... 0016: 0A 2B 06 01 04 01 BF 08 03 02 0A 40 04 C0 A8 01 .+.........@.... 0032: 11 02 01 00 02 01 00 43 01 07 30 00 .......C..0. Note the [0.0.0.0], which indicates that we aren't bound to a particular address and the OS will choose for us. and tcpdump sees the traffic: 00:42:47.043940 IP 192.168.1.17.40794 > 192.168.1.99.snmptrap: Trap(29) .1.3.6.1.4.1.8072.3.2.10 192.168.1.17 coldStart 3 2) add a client address: cp /tmp/snmpd1.conf /tmp/snmpd2.conf echo "[snmp] clientaddr 192.168.1.17" >> /tmp/snmpd2.conf snmpd -f -Lo -d -n -C -c /tmp/snmpd2.conf udp:1161 Sending 44 bytes to UDP: [192.168.1.99]:162->[192.168.1.17] 0000: 30 2A 02 01 00 04 06 70 75 62 6C 69 63 A4 1D 06 0*.....public... 0016: 0A 2B 06 01 04 01 BF 08 03 02 0A 40 04 C0 A8 01 .+.........@.... 0032: 11 02 01 00 02 01 00 43 01 06 30 00 .......C..0. 00:43:19.051092 IP 192.168.1.17.41518 > 192.168.1.99.snmptrap: Trap(29) .1.3.6.1.4.1.8072.3.2.10 192.168.1.17 coldStart 3 same source address that the os picked. 3) use client address from another interface: cp /tmp/snmpd1.conf /tmp/snmpd3.conf echo "[snmp] clientaddr 192.168.56.1" >> /tmp/snmpd3.conf snmpd -f -Lo -d -C -c /tmp/snmpd3.conf udp:1161 Sending 44 bytes to UDP: [192.168.1.99]:162->[192.168.56.1] 0000: 30 2A 02 01 00 04 06 70 75 62 6C 69 63 A4 1D 06 0*.....public... 0016: 0A 2B 06 01 04 01 BF 08 03 02 0A 40 04 C0 A8 01 .+.........@.... 0032: 11 02 01 00 02 01 00 43 01 05 30 00 .......C..0. 00:43:36.350656 IP 192.168.56.1.41094 > 192.168.1.99.snmptrap: Trap(29) .1.3.6.1.4.1.8072.3.2.10 192.168.1.17 coldStart 3 Now the source address is a non-default address from another interface. clientaddr is working fine. ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Net-snmp-coders mailing list Net-snmp-coders@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/net-snmp-coders
