3Com WL522 Router Manual PDF (Setup & Configuration Guide)

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VPN

109

Figure 89

VPN Screen

1

Check the

Enable IPsec

box, configuration details screen appears.

Figure 90

Enable IPSec Screen

2

Enter the

Local ID Name

of your VPN. (the default is 3ComVPN)

3

Click

Add

to create a new entry, see

Figure 91

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110

C

HAPTER

5: C

ONFIGURING

THE

R

OUTER

Figure 91

Add New VPN Tunnel Parameter Screen

On the VPN Tunnel Parameter screen,

1

Set the VPN

Tunnel Type

to

IPSec.

2

Enter a descriptive name for the tunnel in the

Tunnel Name

field.

3

Remote VPN Gateway - select IP address, and then enter the IP address in

the

IP Address/Host Name

field. If you select

ANY

, then it would be no

need to enter the IP address, as any remote server can be used.

4

At the

Remote Party ID

drop-down list, select either IP_IPV4_ADDR or

ID_USER_FQDN. This information must be entered identically on the IPSec

software installed on the client’s machine.

If IP_IPV4_ADDR is selected, then enter the IP address and subnet mask in

the Remote Network Address, and Remote Subnet Mask fields. The

remote network address is usually the network address of the LAN

connected to the remote server.

If ID_USER_FQDN is selected, then enter the name for the

Remote Party

ID

in the text box area next to the drop-down menu. This name must be

unique for each connection rule that you create. Enter the IP address and

subnet mask in the Remote Network Address, and Remote Subnet Mask

fields.

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VPN

111

Note that if you select IKE Main Mode from the Key Management

drop-down menu (see step 6), you must enter IP_IPV4_ADDR here.

5

Select the

Local Party ID

, and then enter the ID, Network Address and

Subnet Mask of the Local Secure Group. The network address of the local

secure group is usually the network address of the local network.

6

From the

Key Management

drop-down menu, select either IKE Main

Mode or IKE Aggressive Mode.

7

SA (Security Association) attribute - select the option to use for

SA

attribute

.

8

In the

Pre-shared Key

field, enter the password for the connection. This

must be unique for each connection rule that you create.

9

Select MD5, or SHA1from the

Authentication Algorithm

drop-down

menu. Both ends of the connection must use the same value.

10

Select DES, 3DES, Null, AES-128, AES-192, or AES-256 from the

Encrypt

Algorithm

drop-down menu. Both ends of the connection must use the

same value.

11

Enter the

Key lifetime

, in seconds. The default is 3600 seconds. The value

must be at least 300 seconds.

12

PFS - Perfect Forward Secrecy, check this box, then the Diffie-Hellman

Group options become available. The use o PFS is optional, enabling PFS

will add another layer of encryption security.

13

Diffie-Hellman Group - select the group to use for Diffie-Hellman key

exchange.

14

Check the

IKE Keep Alive

box to enable this function. The time value is

the number of seconds that the router waits between sending IKE

keepalive packets.

15

Click

Apply

.

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112

C

HAPTER

5: C

ONFIGURING

THE

R

OUTER

Check the

Enable L2TP

box, configuration details screen appears, see

Figure 92

Enable L2TP Screen

1

Enter the

Pre-shared Key

for L2TP Server over IPSec Setting.

2

Define the IP Address Pool for L2TP clients, enter the start/end address.

3

Click

Add

to create a new entry, see

Figure 93

Add New VPN Tunnel Parameter L2TP over IPSec Screen

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VPN

113

1

Set the

Tunnel Type

to

L2TP over IPSec

.

2

Enter a descriptive name for the tunnel in the

Tunnel Name

field.

3

Enter the

User name

and

Password

.

4

Enter the

Idle Timeout

value.

5

Set the L2TP Type Setting to

L2TP Server

, or

L2TP Client

.

■

if you set the type as

L2TP Client

, then set the

Local Type Setting

to

Network or Host, then enter the

Remote Server

IP. Check the Auto

reconnect box, if you want to auto-reconnect after disconnection.

■

if the L2TP Type Setting is set to

L2TP Server

, go to step 6.

6

Check the box to enable the

Remote Network Setting

, and then enter the

Remote Network Address

, and

Remote Subnet Mask

information.

7

When the L2TP Type Setting is set to

L2TP Client

, you would then need to

enter the

Pre-shared Key

information.

8

Click

Apply

.

Check the Enable PPTP box, configuration details screen appears, see

Figure 94

Enable PPTP Screen

1

Define the IP Address Pool for PPTP clients, enter the start/end address.

2

Click

Add

to create a new entry, see

Figure 93

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