SNMP Programming...

maledomains's Avatar, Join Date: Nov 2007
Newbie Member
Can any one tell me how to read SNMP traps from Router????

read from port udp 162.

OS:Windows 2003 server

Programming:vb.net,c#.

If possible thro wmi please provide some samples.....
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brajrajsingh's Avatar, Join Date: Jan 2008
Light Poster
Traps are only send to your machine if it is configured as an SNMP Manager at your router.
You can try capturing all the SNMP packet from the router Using ethereal.
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maledomains's Avatar, Join Date: Nov 2007
Newbie Member
i need source code in .net to read traps
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brajrajsingh's Avatar, Join Date: Jan 2008
Light Poster
SNMP Traps are nothing but packets coming to at port 162 So read the UDP Socket at 162 port no. and you will get the full SNMP Trap PDU.
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maledomains's Avatar, Join Date: Nov 2007
Newbie Member
No itz encrypted msg cant read as usual...
please provide some way of reading it...
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brajrajsingh's Avatar, Join Date: Jan 2008
Light Poster
It is because the router is sending the SNMP V3 traps which supports encryption so the packets can be read by the SNMP manager which is configured in the router for which you require admin rights at the router and you shall be able to view and modify the router configuration . using the manual provided.
Other way to remove encryption is that at the router you configure it to through SNMP V1 or V2c traps at your IP. and then you can capture it from ethereal and view them.
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brajrajsingh's Avatar, Join Date: Jan 2008
Light Poster
Here important thing is that you are the adminstrator of the router or an user.
If you are an user you can try accessing the various information about the router using public community. (This is the community mostly configured for user.)
If you are the adminstrator then you can do a lot by going through the manual of the router.