Hi Bart, Thank you. I will verify. Does the patch works for IPv6 too?
Regards, Pushpa. T On Tue, Oct 30, 2018 at 4:27 AM Bart Van Assche <bvanass...@acm.org> wrote: > On Mon, 2018-10-29 at 09:52 +0530, Pushpa Thimmaiah wrote: > > Hi All, > I am using option 'clientAddr' with IPv6 address and noticed that it is > not working. > so I applied patch > https://sourceforge.net/p/net-snmp/mailman/message/33064273/ on 5.7.3 but > It seems not working. > Kindly let me know if I am missing any configurations. > > Eg: > linux machine has ipv6 '2002::2054' and sends trap using > 'clientAddr=2002::2056' > There is no IPv6 '2002::2056' and trap sent out via '2002::2054'. I have > expected it to fail when it doesnot find 2002::2056. > > *snmp trap sender:* > /home/# /tmp/snmptrap -Dall -v 3 *--clientAddr="2002::2056"* -n "" -u > testigmv6 -l authNoPriv -a MD5 -A mypassword -e 0x80001f880300b0a > e123548 udp6:[2002::2045]:162 "" .1.3.6.1.4.1.8072.2.3.1 > .1.3.6.1.4.1.8072.2.1.1 i 444 > /home# > > *Trap Receiver shows:* > usm: USM processing begun... > usm: match on user testigmv6 > usm: Verification succeeded. > usm: USM processing completed. > 2018-10-29 09:43:59 UDP/IPv6: [2002::2054]:50455 [UDP/IPv6: [*2002::2054* > ]:50455]: > DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (89119) 0:14:51.19 > SNMPv2-MIB::snmpTrapOID.0 = OID: > NET-SNMP-EXAMPLES-MIB::netSnmpExampleNotification > NET-SNMP-EXAMPLES-MIB::netSnmpExampleInteger = INTEGER: 444 > > > Please retest with the Net-SNMP master branch. That branch includes the > patch shown below. > > $ git branch --contains cc45578c2fa0b94f776 > > * master > > $ git show cc45578c2fa0b94f776 > > commit cc45578c2fa0b94f7762057ee3b8a0b795c497ff > > Author: Bill Fenner <fen...@gmail.com> > > Date: Sun May 6 13:05:55 2018 +0000 > > > snmpd: BUG: 2864: use clientaddr properly > > The code parsed out the address from the clientaddr spec, > > then used the return value wrong and only respected it > > if it existed but didn't parse properly. > > > diff --git a/snmplib/transports/snmpUDPIPv4BaseDomain.c > b/snmplib/transports/snmpUDPIPv4BaseDomain.c > > index 37d8e33b47c7..433eb809bb91 100644 > > --- a/snmplib/transports/snmpUDPIPv4BaseDomain.c > > +++ b/snmplib/transports/snmpUDPIPv4BaseDomain.c > > @@ -367,7 +367,7 @@ netsnmp_udpipv4base_transport(const struct sockaddr_in > *addr, int local) > > rc = netsnmp_sockaddr_in2(&client_addr, client_socket, NULL); > > if (client_address != client_socket) > > free(client_address); > > - if(!rc) { > > + if(rc) { > > if (!uses_port || !have_port) /* if port isn't from string, > */ > > client_addr.sin_port = 0; /* ... clear it */ > > return netsnmp_udpipv4base_transport_with_source(addr, local, > > > Thanks, > > Bart. > >
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