APC NBRK0570 User Manual

Example 1: Allow default SNMP traffic from only 192.168.20.21, and reject all other activity.

Filter 1: To accept UDP protocol network packets from IP address 192.168.20.21 on port 161.

[Filter Action] Accept

[IP Address] Include 192.168.20.21

[Protocol] Include UDP

[Port] Include 

Filter 2: To reject all addresses that are exactly (over the full 32 bits of the address) "not 
0.0.0.0". This effectively says "reject all". 

[Filter Action] Reject

[IP Address] Exclude 0.0.0.0/32

[Protocol] Include All

[Port] <blank>

Example 2: Allow global access to the appliance, but allow only 192.168.20.21 to access the default 
SNMP port on the appliance.

Filter 1: To reject all addresses using the UDP protocol on port 161 that are not the specific 
address 192.168.20.21.

[Filter Action] Reject 

[IP Address] Exclude 192.168.20.21

[Protocol] Include UDP

[Port] Include 80

Filter 2: To accept all TCP requests on port 443 from all addresses that are exactly not 0.0.0.0. 
(TCP on port 443 is the definition of the HTTPS protocol.)

[Filter Action] Accept

[IP Address] Exclude 0.0.0.0/32

[Protocol] Include TCP

[Port] Include 443