Re: Net-snmp trap destination setting
Xiang Li <[email protected]>
| Newsgroups | gmane.network.net-snmp.user |
|---|---|
| Message-ID | <[email protected]> |
Hi, I was facing the same problem with Wireshark. However I did manage to get it to recognize SNMP traps destined to a port other than 162. For example if I use a capture filter "port 1625", I can get all trap packets destined to the port 1625. Then as soon as there a packet come in, I right-click on it, select "decode as SNMP" (or select menu "Analyze->Decode As", then select "UDP->Destination 1625", and associate it with "SNMP" protocol in the list box on the right side of the dialog. Then Wireshark can properly decode all subsequent UDP packets destined to port 1625 as SNMP packets. The menu "Analyze->User specified Decode" will contain the custom decoding you just defined. Note the user specified decodes can not be saved. If you quit Wireshark, these settings will be lost. Xiang On 4/27/2011 8:14 AM, 謝朝任 wrote: > Hi Dave, > > Thanks for your help. I found wireshark filter can not recognize SNMP > packet of carrying destination port other than 161 or 162. I found > those traps through tcpdump. > > Thanks. > > Sonic > > 2011/4/15 Dave Shield <[email protected] > <mailto:[email protected]>> > > On 14 April 2011 02:59, 謝朝任 <[email protected] > <mailto:[email protected]>> wrote: > > Ryota, Thank your help. In my observation, SNMP traps can be > sent out when > > the destination port is 161 or 162. I can not choose other > destination ports > > to send SNMP traps. What can I do to solve this problem? > > You should be able to send traps to another port using a directive > of the form > > trapsink 172.16.177.1:4440 <http://172.16.177.1:4440> public > > Dave > > > > ------------------------------------------------------------------------------ > WhatsUp Gold - Download Free Network Management Software > The most intuitive, comprehensive, and cost-effective network > management toolset available today. Delivers lowest initial > acquisition cost and overall TCO of any competing solution. > http://p.sf.net/sfu/whatsupgold-sd > > > _______________________________________________ > Net-snmp-users mailing list > [email protected] > Please see the following page to unsubscribe or change other options: > https://lists.sourceforge.net/lists/listinfo/net-snmp-users -- Xiang Li http://www.champnms.com ------------------------------------------------------------------------------ WhatsUp Gold - Download Free Network Management Software The most intuitive, comprehensive, and cost-effective network management toolset available today. Delivers lowest initial acquisition cost and overall TCO of any competing solution. http://p.sf.net/sfu/whatsupgold-sd _______________________________________________ Net-snmp-users mailing list [email protected] Please see the following page to unsubscribe or change other options: https://lists.sourceforge.net/lists/listinfo/net-snmp-users