Western Telematic PLS-345 manual Implementing IP Security

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Section 5: SetUp and Configuration

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 5.5: The IP Security Menu

5.6.1.Implementing IP Security

The PLS-345 can be configured to restrict unauthorized IP addresses from Telneting to the unit. This allows the user to grant Telnet access only to a specific group of IP Addresses, or block a particular IP address from gaining access. In the default state, the PLS accepts incoming IP connections from all hosts. To configure the IP Security feature, proceed as follows:

1.Access the Network Parameters menu as described in Section 5.6. Note that the Network Parameters Menu and IP Security Menu are not available in User Mode.

2.When the Network Parameters menu appears, type 4 and press [Enter] to access the IP Security menu (Figure 5.5).

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; 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.

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Contents PLS-345 Page Shock Hazard Do Not Enter Nameplate Power WarningVentilation Enclosed RacksTable of Contents Application Examples Command SummaryIntroduction Monitor ModeApplications Typographic ConventionsFront Panel Unit DescriptionBack Panel Back PanelUnit Description PLS-345 Physical Layer Switch Users Guide Quick Start / System Overview $ telnet 192.168.168.168 Enter Modem & Console Port Access Factory set PLSCircuit Status Screen Command Help Screen System Mode Initialization InstallationPower Supply Connection Connecting the Network Cable Connecting Common and A/B LinesConnecting an External Modem Connecting a PC to the Console PortSystem Mode and User Mode SetUp and ConfigurationCommunicating with the PLS-345 SetUp and Configuration PLS Command/Menu Conventions Defining General Parameters SetUp and ConfigurationPLS-345 Physical Layer Switch Users Guide SetUp and Configuration Circuit Parameters Menu Circuit ParametersNetwork Parameters Network Parameters Menu IP Security Implementing IP SecurityExample 1 Deny access to all hosts except Selecting Monitor Mode Parameters Monitor ModeHardware Configuration Monitor Mode Parameters Menu Switch if Level 1 High Switch to Position B Return On Save Configuration Parameters Circuit Status Screen Status ScreensPLS-345 Physical Layer Switch Users Guide Port Network Status ScreenPLS-345 Physical Layer Switch Users Guide Operation Manual A/B Switching/A Command and the /B Command Code Activated A/B SwitchingEnter or /B n Enter EnterCommand Confirmation Prompt /D CommandMonitor Mode Sending Parameters to a File Saving and Restoring Configuration ParametersRestoring Saved Parameters Application Examples Monitoring Signal Drop and/or Power LossAUX Port Connection Monitoring a Contact Monitoring a Switch or RelayItem 6 Circuits to Switch Enable the Monitor Mode at circuit Display Commands Command SummaryDisplay Help Screen Display Circuit StatusSN Display Network Status Configuration CommandsView/Set General Parameters View/Set Circuit ParametersView/Set Network Parameters View/Set Monitor Mode ParametersDL Download Configuration to File Switch Circuit n to Line B Control CommandsSwitch Circuit n to Line a Reset Network Interface Set Circuits to DefaultCommand Format /D Enter Command Arguments Command Format /T Enter Command ArgumentsExit/Disconnect Command Format /X Enter Command ArgumentsModem Port Interface Interface DescriptionsConsole Port Interface Figure A.3 Common Ports and A/B Ports Common Ports and A/B PortsSize SpecificationsSwitching Trademark and Copyright Information Customer ServiceIndex Index-2 Page Sterling Irvine California 949 586-9950 Toll Free