Linksys BEFVP41v1 Router Manual PDF (Setup & Configuration Guide)

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EtherFast

®

Cable/DSL VPN Router with 4-Port 10/100 Switch

85

Instant Broadband

®

Series

84

3.

From

the

Security

Methods

tab, shown in

Figure C-12, verify that

the

Negotiate security

option is enabled, and

deselect

the

Accept

unsecured communica-

tion,

but

always

respond using IPSec

check

box.

Select

Session

key

Perfect

Forward Secrecy

, and

click the

OK

button.

4.

Select the

Authentication

Methods

tab, shown in

Figure C-13, and click the

Edit

button.

Figure C-12

Figure C-13

5.

Change the authentica-

tion method to

Use this

string to protect the

key exchange (pre-

shared key)

, as shown

in Figure C-14, and

enter the preshared key

string,

such

as

XYZ12345

. Click the

OK

button.

6.

This new Preshared

key will be displayed in

Figure C-15. Click the

OK

or

Close

button to

continue.

Figure C-14

Figure C-15

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Page 47 / 63

EtherFast

®

Cable/DSL VPN Router with 4-Port 10/100 Switch

87

Instant Broadband

®

Series

86

7.

Select

the

Tunnel

Setting

tab, shown in

Figure C-16, and click

The tunnel endpoint is

specified by this IP

Address

radio button.

Then, enter the Router’s

WAN IP Address

.

8.

Select the

Connection

Type

tab, as shown in

Figure C-17, and click

All network connec-

tions

. Then, click the

OK

or

Close

button to finish

this rule.

Figure C-16

Figure C-17

Tunnel 2: router->win

9.

In the new policy’s

properties

screen,

shown in Figure C-18,

make sure that “win ->

router” is select and

deselect the

Use Add

Wizard

check

box.

Then, click the

Add

button to create the

second IP filter.

10. Go to the

IP Filter List

tab, and click the filter

list

router->win

,

as

shown in Figure C-19

Figure C-18

Figure C-19

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Page 48 / 63

EtherFast

®

Cable/DSL VPN Router with 4-Port 10/100 Switch

89

Instant Broadband

®

Series

88

11. Click the

Filter Action

tab, and select the filter

action

Require Security

,

as shown in Figure C-20.

Then, click the

Edit

but-

ton.

12. Click the

Authentication

Methods

tab, and verify

that the authentication

method

Kerberos

is

selected, as shown in

Figure C-21. Then, click

the

Edit

button.

Figure C-20

Figure C-21

13. Change the authenti-

cation method to

Use

this string to protect

the key exchange

(preshared key)

, and

enter the preshared

key string, such as

XYZ12345

,

as

shown in Figure C-

22. (This is a sample

key

string.

Yours

should be a key that

is unique but easy to

remember.)

Then

click the

OK

button.

14. This new Preshared

key will be displayed

in Figure C-23. Click

the

OK

button to

continue.

Figure C-22

Figure C-23

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EtherFast

®

Cable/DSL VPN Router with 4-Port 10/100 Switch

91

Instant Broadband

®

Series

90

15. From

the

Tunnel

Setting tab, shown in

Figure C-24, click the

radio button for

The

tunnel endpoint is

specified by this IP

Address

, and enter

the

Windows

2000/XP computer’s

IP Address.

16. Click the

Connection

Type

tab, shown in

Figure

C-25,

and

select

All network

connections

.

Then

click the

OK

(for

Windows

XP)

or

Close

(for Windows

2000) button to finish.

Figure C-24

Figure C-25

17. From the Rules tab,

shown in Figure C-

26, click the

OK

button to return to

the secpol screen.

In the

IP Security Policies on Local Computer

window, shown in Figure C-

27, right-click the policy named

to_router

, and click

Assign

. A green arrow

appears in the folder icon.

Figure C-26

Figure C-27

Step Four: Assign New IPSec Policy

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EtherFast

®

Cable/DSL VPN Router with 4-Port 10/100 Switch

93

Instant Broadband

®

Series

92

1.

Open your web browser, and enter

192.168.1.1

in the Address field. Press

the

Enter

key.

2.

When the User name and Password field appears, skip the user name and

enter the default password

admin

. Press the

Enter

key.

3.

From the Setup tab, shown in Figure C-28, click the

VPN

tab.

4.

From the VPN tab, shown in Figure C-29, select

Enable

beside This Table.

5.

Enter a

Tunnel Name

. This name should be unique for this particular tun-

nel.

6.

Select

Subnet

from the pull-down menu beside Local Secure Group. Then,

enter the

IP Address

for this group. This would be the IP Address of the

local endpoint, your endpoint.

7.

Select

IP Addr.

from the pull-down menu beside Remote Secure Group.

Then, enter the

IP Address

for this group. This would be the IP Address of

the remote endpoint, the endpoint on the other side of the tunnel.

Figure C-28

Step Five: Create a Tunnel Through the Web-Based Utility

Note:

Further details on this step can be found in the VPN Tab section

in “Chapter 6: The Cable/DSL VPN Router’s Web-Based Utility”.

8.

Select

IP Addr.

from the pull-down menu beside Remote Security

Gateway. This would be the IP Address of your Internet connection as seen

from the Internet. Enter this

IP Address

here.

9.

Select a type of

encryption

and

authentication

for the tunnel your are

establishing.

10. Check

PFS (Perfect Forward Secrecy)

and enter the

Pre-Shared Key

and

Key Lifetime

.

11. Click the

Apply

button followed by the

Continue

button.

12. Click the

Connect

button.

Your tunnel should now be established.

Figure C-29

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