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5-16
NBB-115 & NBB-230: Network Boot Bars - User's Guide
5.3.4.1. IP Security Feature
The IP Security feature can be used to restrict unauthorized IP addresses from
establishing a connection with the NBB. In the default state, the NBB accepts
incoming IP connections from all hosts. To configure the IP Security feature,
proceed as follows:
1. Access the IP Security Menu:
a) Web Browser Interface: The IP Security feature is configured
using the fields at the bottom of the Network Parameters Menu as
shown in Figure 5.9.
b) Text Interface: Go to the Network Parameters menu (/N), type 5
and press [Enter]. The IP Security menu will be displayed as shown
in Figure 5.11.
2. The IP Security menu lists five IP Security "masks" along with the
selected permit/deny action for each mask.
a) Each Security Mask prompt defines a specific IP address or range of
addresses. Each Mask Action prompt defines 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; high priority masks supersede the
effect of lower priority masks.
d) Each IP Address consists of a series of four eight bit numbers. The
number 255 is used as a wild card.
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 5.11: IP Security Menu - Text Interface
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