Traps to other destination is captured in my host NIC while running wireshark

Hi,

I am running wireshark in my host say with IP address A.I am having another host in my LAN say with IP address B. Let say a Router R sends SNMP traps to the host B . The wireshark running in my host A,is able to capture the SNMP trap packet.How does this happens?

Thx

udp snmp

asked 23 Jun '11, 22:19

JavaUser
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One Answer:

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There are several options .Assuming that

you capture in promiscuous mode
you're on a switched network with host B

Then the router

Might broadcast it
Might multicast it, for which the switch hasn't pruned your link
Might unicast it, for which the switch doesn't have a target port in its switching table

So, have a good look at the traffic and see what applies.

link

answered 24 Jun '11, 00:15

Jaap ♦
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accept rate: 11%

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udp ×57
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Asked: 23 Jun '11, 22:19

Seen: 1,495 times

Last updated: 24 Jun '11, 00:15

Traps to other destination is captured in my host NIC while running wireshark

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