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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