Netgear fvs114 사용자 설명서
Reference Manual for the ProSafe VPN Firewall FVS114
C-8
Virtual Private Networking
202-10098-01, April 2005
” to gather the necessary address and subnet mask information to aid in
the configuration and troubleshooting process.
Firewalls
It is important to understand that many gateways are also firewalls. VPN tunnels cannot function
properly if firewall settings disallow all incoming traffic. Please refer to the firewall instructions
for both gateways to understand how to open specific protocols, ports, and addresses that you
intend to allow.
properly if firewall settings disallow all incoming traffic. Please refer to the firewall instructions
for both gateways to understand how to open specific protocols, ports, and addresses that you
intend to allow.
VPN Tunnel Between Gateways
A Security Association (SA), frequently called a tunnel, is the set of information that allows two
entities (networks, PCs, routers, firewalls, gateways) to trust each other and communicate securely
as they pass information over the Internet.
entities (networks, PCs, routers, firewalls, gateways) to trust each other and communicate securely
as they pass information over the Internet.
Table C-1.
WAN (Internet/public) and LAN (internal/private) addressing
Gateway
LAN or WAN
VPNC Example Address
Gateway A
LAN (Private)
10.5.6.1
Gateway A
WAN (Public)
14.15.16.17
Gateway B
LAN (Private)
22.23.24.25
Gateway B
WAN (Public)
172.23.9.1
Table C-2.
Subnet addressing
Gateway
LAN or WAN
Interface Name
Example Subnet Mask
Gateway A
LAN (Private)
Subnet Mask A
255.255.255.0
Gateway B
LAN (Private)
Subnet Mask B
255.255.255.0