SNMP ports

From: pkoltl@xxxxxx
Date: Fri Aug 09 2002 - 12:05:07 GMT-3

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Hello All,

Do SNMP agents send packets with source port 161 or 162? A lab solution
contains following access list entries, but I don't understand every line.

access-list 101 permit udp host 137.20.10.1 eq snmptrap 137.20.64.0
0.0.15.255
access-list 101 permit udp host 137.20.10.1 host 137.20.40.17 eq snmptrap
access-list 101 permit udp host 137.20.10.1 eq snmp 137.20.64.0 0.0.15.255
access-list 101 permit udp host 137.20.10.1 host 137.20.40.17 eq snmp

(The task was something like to allow only necessary SNMP traffic.)
Please explain it to me. Thanks:

Peter

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