
DUAL-PORT  NETWORK POWER SWITCH
IP SECURITY | 
  | |
1.  | Security Mask #1:  | (undefined)  | 
2.  | Mask #1 Action:  | Permit  | 
3.  | Security Mask #2:  | (undefined)  | 
4.  | Mask #2 Action:  | Permit  | 
5.  | Security Mask #3:  | (undefined)  | 
6.  | Mask #3 Action:  | Permit  | 
7.  | Security Mask #4:  | (undefined)  | 
8.  | Mask #4 Action:  | Permit  | 
9.  | Security Mask #5:  | (undefined)  | 
10. Mask #5 Action:  | Permit  | |
Enter Selection or <ESC> to Exit…
Figure 4-6.  IP Security menu.
To configure the IP security feature, proceed as follows:
1.Access the Network Parameters menu as described on the previous page. Note that the Network Parameters menu is not available in user mode.
2.When the Network Parameters menu appears, type 4 and press [Enter] to access the IP Security menu (Figure 
3.The IP Security menu lists five IP security “masks” along with the selected permit/deny action for each mask.
a)Each security mask prompt is used to define a specific IP address or range of IP addresses. Each mask action prompt is used to define the permit/deny action for the corresponding mask.
b)Masks are listed in order of ascending priority; Mask 1 has the lowest priority, Mask 5 has the highest priority.
c)Masks have a cumulative effect; 
d)Each IP address consists of a series of four 
Example 1: Deny access to all hosts except 192.1.1.5:
Security Mask #1: 255.255.255.255 Mask #1 Action: Deny
Security Mask #2: 192.1.1.5 Mask #2 Action: Permit
Since 255 is a wild card, Mask #1 blocks all IP addresses. Mask #2 then specifically grants access to 192.1.1.5 only.
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