Hi, I found two issues using latest git repo master branch; IPv4, using "clientaddr srcip" in snmp.conf and "snmptrap" to a local ip - OK IPv4, using "clientaddr srcip" in snmp.conf and "snmptrap" to a remote ip - OK IPv4, using "snmptrap -s srcip" to a local ip - OK IPv4, using "snmptrap -s srcip" to a remote ip - FAILS
IPv6, using "clientaddr srcip" in snmp.conf and "snmptrap" to a local ip - OK IPv6, using "clientaddr srcip" in snmp.conf and "snmptrap" to a remote ip - OK IPv6, using "snmptrap -s srcip" to a local ip - OK IPv6, using "snmptrap -s srcip" to a remote ip - FAILS IPv4, using "clientaddr srcip" and "trapsess ..." in snmpd.conf to a local ip - OK IPv4, using "clientaddr srcip" and "trapsess ..." in snmpd.conf to a remote ip - OK IPv4, using "trapsess -s srcip ..." to a local ip - OK IPv4, using "trapsess -s srcip" to a remote ip - OK IPv6, using "clientaddr srcip" and "trapsess ..." in snmpd.conf to a local ip - OK IPv6, using "clientaddr srcip" and "trapsess ..." in snmpd.conf to a remote ip - OK IPv6, using "trapsess -s srcip ..." to a local ip - OK IPv6, using "trapsess -s srcip" to a remote ip - OK NOTE: clientaddrs sucks if you want to use IPv4 AND IPv6 since it can only have one value, either an IPv4 or an IPv6 value "ww"; can you file a bug on this problem? https://sourceforge.net/p/net-snmp/bugs/ I will try to fix it, but it will be next week. Regards Anders On Fri, May 24, 2019 at 5:23 AM ww <ww634539...@163.com> wrote: > Hi. > Thanks for your reply. I try to use "-s" and "--clientaddr" but it dose > not work. > My version is net-snmp-5.8. > My commond is "snmptrap -v3 -u usertest -l authPriv -a SHA -A usertest -x > AES -X usertest -s 10.2.24.121 10.2.24.18 84100 …… ". > May I ask you how the snmptrap chooses the network interface by it self? > Is it polling all the enable ports? > > Regards > > At 2019-05-23 15:54:28, "Klemen Sladic" <gostur...@gmail.com> wrote: > > Hi. > > Any traffic originating from snmpd will have src IP of outgoing network > interface. > From my experience "clientaddr" helps for replies generated by snmpd. For > example, > if you have multiple interfaces and "clientaddr" is set, any snmpd > response, like response to > snmpget, snmpwalk etc. will have desired src IP. > > But this won't work for packets initiated by snmpd, like traps. > What I did, was changing the route src settings. > For example, if you have eth0 in 192.168.0.0/24 and eth1 in 192.168.1.0/24 > and you want any traffic to > have source of 192.168.0.0/24, then change eth1 subnet route like: > > ip route change 192.168.1.0/24 dev eth1 src 192.168.0.1 > > if 192.168.0.1 is eth0 IP. > > Of course this may have other side effects on routing in your system. > > RegK > > On Thu, May 23, 2019 at 6:30 PM Anders Wallin <walli...@gmail.com> wrote: > >> You can use "clientaddr" in snmp.conf or snmpd.conf, >> https://linux.die.net/man/5/snmp.conf >> >> In 5.8 you also have the possibility to use "-s" with trapsess, but I did >> not found any documentation on it. >> but check the test >> code, testing/fulltests/default/T184trapsesssource_simple >> >> Regards >> Anders Wallin >> >> >> On Wed, May 22, 2019 at 5:21 PM ww <ww634539...@163.com> wrote: >> >>> Hello, Thank you for reading my email. Can I specify the source IP when >>> send a V2/V3 trap like V1? >>> >>> >>> >>> >>> _______________________________________________ >>> 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 >>> >> _______________________________________________ >> 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 >> > > > >
_______________________________________________ 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
