5. Enter the IP Address and Subnet Mask of the local VPN Router in the
Local Secure Group
fields.
To allow
access to the entire IP subnet, enter 0 for the last set of IP Addresses. (e.g. 192.168.1.0).
6. Enter the IP Address and Subnet Mask of the VPN device at the other end of the tunnel (the
remote VPN Router
or device with which you wish to communicate) in the
Remote Security Router
fields.
7. Select fromtwo different types of encryption:
DES
or
3DES
(3DES is recommended because it
is more secure).
You may choose either of these, but it must be the same type of encryption that is being used by
the VPN
device at the other end of the tunnel. Or, you may choose not to encrypt by selecting Disable.
8. Select from two types of authentication:
MD5
and
SHA
(SHA is recommended because it is
more secure). As
with encryption, either of these may be selected, provided that the VPN device at the other end of
the tunnel
is using the same type of authentication. Or, both ends of the tunnel may choose to
Disable
authentication.
9. Select the Key Management. Select
Auto (IKE)
and enter a series of numbers or letters in the
Pre-shared Key
field. Check the box next to
PFS
(Perfect Forward Secrecy) to ensure that the initial key exchange
and IKE
proposals are secure. You may use any combination of up to 24 numbers or letters in this field. No
special
characters or spaces are allowed. In the
Key Lifetime
field, you may optionally select to have the
key expire at
the end of a time period of your choosing. Enter the number of seconds you’d like the key to be
useful, or
leave it blank for the key to last indefinitely.
10. Click the
Save Settings
button to save these changes.
Your tunnel should now be established.
Figure C-28: VPN Tab
Appendix D: Finding the MAC
Address and IP Address for
Your Ethernet Adapter
This section describes how to find the MAC address for your computer’s Ethernet adapter so you
can use the MAC
filtering and/or MAC address cloning feature of the Router. You can also find the IP address of
your computer’s
Ethernet adapter. This IP address is used for the Router’s filtering, forwarding, and/or DMZ
features. Follow the
steps in this appendix to find the adapter’s MAC or IP address in Windows 98, Me, 2000, or XP.
Windows 98 or Me Instructions
1. Click
Start
and
Run
. In the
Open
field, enter
winipcfg
. Then press the
Enter
key or the
OK
button.
2. When the
IP Configuration
screen appears, select the Ethernet adapter you have connected to
the Router via a
CAT 5 Ethernet network cable. See Figure E-1.
3. Write down the Adapter Address as shown on your computer screen (see Figure E-2). This is
the MAC address
