Cisco VPN 3000 User's Guide download pdf (Page 268)

13 Policy Management

13-18

VPN 3000 Concentrator Series User Guide

Range = To specify a range of port numbers, or to specify a port not on the Cisco-supplied list, select

Range here (the default selection) and enter—in the Range [start] to [end] fields—the inclusive range

of port numbers that this rule applies to. To specify a single port number, enter the same number in

both fields. Defaults are

0 to 65535 (all ports). The Range fields are ignored if you select a specific

port from the drop-down list.

TCP/UDP Destination Port

If you select TCP or UDP under Protocol above, select the destination port number that this rule checks.

See the explanation of port numbers under

TCP/UDP Source Port above.

Port or Range

Click the drop-down menu button and select the process (port number). The choices are the same as

listed under

TCP/UDP Source Port, Port or Range above.

ICMP Packet Type

The ICMP protocol has many messages that are identified by a type number. For example:

0 = Echo Reply

8 = Echo

13 = Timestamp

14 = Timestamp Reply

17 = Address Mask Request

18 = Address Mask Reply

The Internet Assigned Numbers Authority (IANA) manages these ICMP type numbers.

If you selected

ICMP under Protocol above, enter the range of ICMP packet type numbers that this rule

applies to. To specify a single packet type, enter the same number in both fields. Defaults are

0 to 255

(all packet types). For example, to specify the

Timestamp and Timestamp Reply types only, enter

13 to 14.

Add or Apply / Cancel

To add this rule to the list of configured filter rules, click Add. Or to apply your changes to this rule, click

Apply. On the Modify screen, any changes take effect as soon as you click Apply. If the rule is being used

by an active filter, changes may affect tunnel traffic. The Manager returns to the

Configuration | Policy

Management | Traffic Management | Rules

screen. Any new rule appears in the Filter Rules list.

Reminder: The Manager immediately includes your changes in the active configuration. To save the active

configuration and make it the boot configuration, click the

Save Needed icon at the top of the Manager

window.

To discard your entries, click

Cancel. The Manager returns to the Configuration | Policy Management | Traffic

Management | Rules

screen, and the Filter Rules list is unchanged.

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Cisco VPN 3000 User's Guide Page 268

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