I-Tech Company CMS 6R4 Series - Manual (Page 44)

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CMS-6R4 Series - User’s Guide
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,
Press <ESC> to return to previous menu ...
Figure 5.11: IP Security Menu - Text Interface
5.5.2.1. IP Security Feature
The IP Security feature can be used to restrict unauthorized IP addresses from
establishing a connection with the CMS-6R4. In the default state, the unit
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. To access the Network Parameters Menu, click
the "SetUp" button at the bottom of the Status Screen, and then click
the "Network Parameters" button on the left hand side of the Setup
Menu.
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.