Hi, that was one of the cases that failed for me. You can try to have 'clientaddr 10.2.24.121" $HOME/.snmp/snmp.conf and run "snmptrap -v3 -u usertest -l authPriv -a SHA -A usertest -x AES -X usertest 10.2.24.18 84100 …… " (w/o -s 10.2.24.121)
I hope to get some time to dig into the issue later this week.... Regards Anders Wallin On Sat, May 25, 2019 at 5:13 AM ww <ww634539...@163.com> wrote: > Hi，Anders > > I am Chinese，and the website was blocked by the government. > You know the "996.icu"...... > When I login the website，it will prompt that: > The sourceforge.net website is temporarily in static offline mode. > > Only a very limited set of project pages are available until the main > website returns to service. > May I ask a question? > My eth0 ip 10.2.24.81, eth1 ip 10.2.24.121 . > 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 …… ". > Why is the IP received by the client is 10.2.24.81? > > > At 2019-05-24 19:44:52, "Anders Wallin" <walli...@gmail.com> wrote: > > 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 >>> >> >> >> >> > > > >
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