Chapter 8: VPN—Virtual Private Networking
92
WatchGuard Firebox SOHO 6.1
13 In the
Diffie-Hellman Group
drop list, specify the group.
WatchGuard supports 1 & 2.
Diffie-Hellman refers to a mathematical technique for securely negotiating
secret keys over a public medium. Diffie-Hellman groups are collections of
parameters used to achieve this. Group 2 is more secure than group 1, but
requires more time to compute the keys.
14 If you choose, select the checkbox marked
Enable Perfect
Forward Secrecy
.
When this option is selected, each new key that is negotiated is derived by
a new Diffie-Hellman exchange instead of from only one Diffie-Hellman
exchange. Enabling this option provides more security, but requires more
time because of the additional exchange.
15 Enable the
Generate IKE Keep Alive Messages
checkbox to
keep a VPN tunnel from going down because of time out
conditions. A small amount of traffic is sent across the VPN
tunnel to keep it alive and functioning. If the tunnel fails for
any reason the SOHO 6 initiates a rekey of the tunnel to restore
it.
This checkbox is enabled by default.
16 Phase 2 setting can be left at the defaults shown or modified as
desired. To modify Phase 2 settings, complete the following
steps. Make sure that the Phase 2 settings on this device are the
same as on the peer device.
17 In the
Authentication Algorithm
drop list, specify the
authentication: None (no authentication), MD5-HMAC (128-bit
authentication) or SHA1-HMCA (160-bit authentication).
18 In the
Encryption Algorithm
drop list, specify the type of
encryption: None (no authentication), DES-CBC or 3DES-CBC.
19 Enter how many kilobytes until key expiration.
20 Enter how many hour until key expiration.
21 Add the IP address of the local and remote network that will
use Phase 2 negotiation.
22 Click
Submit
.
Summary of Contents for Firebox SOHO 6.1
Page 1: ...WatchGuard Firebox SOHO 6 User Guide SOHO 6 1 ...
Page 4: ...iv WatchGuard Firebox SOHO 6 1 VCCI Notice Class A ITE ...
Page 5: ...User Guide v Declaration of Conformity ...
Page 18: ...xviii WatchGuard Firebox SOHO 6 1 ...
Page 28: ...Chapter 1 Introduction 10 WatchGuard Firebox SOHO 6 1 ...
Page 48: ...Chapter 3 SOHO 6 Basics 30 WatchGuard Firebox SOHO 6 1 ...
Page 68: ...Chapter 4 Configure the Network Interfaces 50 WatchGuard Firebox SOHO 6 1 ...
Page 92: ...Chapter 6 Configure the Firewall Settings 74 WatchGuard Firebox SOHO 6 1 ...
Page 100: ...Chapter 7 Configure Logging 82 WatchGuard Firebox SOHO 6 1 ...