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ZyXEL Communications ADSL VoIP IAD with 802.11g Wireless 2602HW Series User Manual

Page 405

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Prestige 2602HW Series User’s Guide

Chapter 42 VPN/IPSec Setup

405

A

Y signifies that this VPN rule is active.

Local Addr

Start

When the Addr Type field in Menu 27.1.1 IPSec Setup is configured to Single, this is a

static IP address on the LAN behind your Prestige.
When the Addr Type field in Menu 27.1.1 IPSec Setup is configured to Range, this is

the beginning (static) IP address, in a range of computers on the LAN behind your

Prestige.
When the Addr Type field in Menu 27.1.1 IPSec Setup is configured to SUBNET, this

is a static IP address on the LAN behind your Prestige.

Addr End /

Mask

When the Addr Type field in Menu 27.1.1 IPSec Setup is configured to Single, this is

the same (static) IP address as in the Local Addr Start field.

When the Addr Type field in Menu 27.1.1 IPSec Setup is configured to Range, this is

the end (static) IP address, in a range of computers on the LAN behind your Prestige.

When the Addr Type field in Menu 27.1.1 IPSec Setup is configured to SUBNET, this

is a subnet mask on the LAN behind your Prestige.

Encap

This field displays Tunnel mode or Transport mode. See earlier for a discussion of

these. You need to finish configuring the VPN policy in menu 27.1.1.1 or 27.1.1.2 if ???

is displayed.

IPSec

Algorithm

This field displays the security protocols used for an SA. ESP provides confidentiality

and integrity of data by encrypting the data and encapsulating it into IP packets.

Encryption methods include 56-bit DES and 168-bit 3DES. NULL denotes a tunnel

without encryption.168-bit 3DES and 128-bit AES. NULL denotes a tunnel without

encryption.
AH (Authentication Header) provides strong integrity and authentication by adding

authentication information to IP packets. This authentication information is calculated

using header and payload data in the IP packet. This provides an additional level of

security. AH choices are MD5 (default - 128 bits) and SHA -1(160 bits).
Both AH and ESP increase the Prestige’s processing requirements and

communications latency (delay).
You need to finish configuring the VPN policy in menu 27.1.1.1 or 27.1.1.2 if ??? is

displayed.

Key Mgt

This field displays the SA’s type of key management, (IKE or Manual).

Remote Addr

Start

When the Addr Type field in Menu 27.1.1 IPSec Setup is configured to Single, this is a

static IP address on the network behind the remote IPSec router.
When the Addr Type field in Menu 27.1.1 IPSec Setup is configured to Range, this is

the beginning (static) IP address, in a range of computers on the network behind the

remote IPSec router.
When the Addr Type field in Menu 27.1.1 IPSec Setup is configured to SUBNET, this

is a static IP address on the network behind the remote IPSec router.
This field displays N/A when you configure the Secure Gateway Address field in SMT

27.1.1 to 0.0.0.0.

Addr End /

Mask

When the Addr Type field in Menu 27.1.1 IPSec Setup is configured to Single, this is

the same (static) IP address as in the Remote Addr Start field.
When the Addr Type field in Menu 27.1.1 IPSec Setup is configured to Range, this is

the end (static) IP address, in a range of computers on the network behind the remote

IPSec router.
When the Addr Type field in Menu 27.1.1 IPSec Setup is configured to SUBNET, this

is a subnet mask on the network behind the remote IPSec router.
This field displays N/A when you configure the Secure Gateway Address field in SMT

27.1.1 to 0.0.0.0.

Table 133 Menu 27.1 IPSec Summary (continued)

FIELD

DESCRIPTION