Appendix B Site-to-Site VPN User Interface Reference

 

 

Site to Site VPN Policies

 

Table B-21

GRE Modes Page > GRE or GRE Dynamic IP Policy (continued)

 

 

 

Element

 

Description

 

 

 

AS Number

 

Available only if you selected the EIGRP routing protocol.

 

 

The number that will be used to identify the autonomous system

 

 

(AS) area to which the EIGRP packet belongs. The range is

 

 

1-65535. The default is 110.

 

 

An autonomous system (AS) is a collection of networks that share

 

 

a common routing strategy. An AS can be divided into a number of

 

 

areas, which are groups of contiguous networks and attached hosts.

 

 

Routers with multiple interfaces can participate in multiple areas.

 

 

An AS ID identifies the area to which the packet belongs. All

 

 

EIGRP packets are associated with a single area, so all devices must

 

 

have the same AS number.

 

 

 

Process Number

 

Available only if you selected the OSPF routing protocol.

 

 

The routing process ID number that will be used to identify the

 

 

secured IGP that Security Manager adds when configuring GRE.

 

 

The range is 1-65535. The default is 110.

 

 

Security Manager adds an additional Interior Gateway Protocol

 

 

(IGP) that is dedicated for IPSec and GRE secured communication.

 

 

An IGP refers to a group of devices that receive routing updates

 

 

from one another by means of a routing protocol. Each “routing

 

 

group” is identified by the process number.

 

 

For more information, see How Does Security Manager Implement

 

 

GRE?, page 9-87.

 

 

 

Hello Interval

 

Available only if you selected the EIGRP routing protocol.

 

 

The interval between hello packets sent on the interface, from 1 to

 

 

65535 seconds. The default is 5 seconds.

 

 

 

Hold Time

 

Available only if you selected the EIGRP routing protocol.

 

 

The number of seconds the router will wait to receive a hello

 

 

message before invalidating the connection. The range is 1-65535.

 

 

The default hold time is 15 seconds (three times the hello interval).

 

 

 

 

 

 

User Guide for Cisco Security Manager 3.0.1

 

 

 

 

 

 

OL-8214-02

 

 

B-61

 

 

 

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3D Innovations 3.0.1 appendix Gre?