Netgear UTM25EW-100NAS ユーザーズマニュアル
ProSecure Unified Threat Management UTM10 or UTM25 Reference Manual
Network Planning for Dual WAN Ports (UTM25 Only)
B-9
v1.0, September 2009
Virtual Private Networks (VPNs)
When implementing virtual private network (VPN) tunnels, a mechanism must be used for
determining the IP addresses of the tunnel end points. The addressing of the firewall’s dual WAN
port depends on the configuration being implemented:
determining the IP addresses of the tunnel end points. The addressing of the firewall’s dual WAN
port depends on the configuration being implemented:
Figure B-6
Table B-2. IP addressing requirements for VPNs in dual WAN port systems
Configuration and WAN IP address
Single WAN Port
Configurations
(Reference Cases)
Configurations
(Reference Cases)
Dual WAN Port Configurations
Rollover Mode
a
a. All tunnels must be re-established after a rollover using the new WAN IP address.
Load Balancing Mode
”
Fixed
Allowed
(FQDN optional)
(FQDN optional)
FQDN required
Allowed
(FQDN optional)
(FQDN optional)
Dynamic
FQDN required
FQDN required
FQDN required
” Fixed
Allowed
(FQDN optional)
(FQDN optional)
FQDN required
Allowed
(FQDN optional)
(FQDN optional)
Dynamic
FQDN required
FQDN required
FQDN required
Fixed
Allowed
(FQDN optional)
(FQDN optional)
FQDN required
Allowed
(FQDN optional)
(FQDN optional)
Dynamic
FQDN required
FQDN required
FQDN required