User's Manual

Table Of Contents
Fortress ES-Series CLI Guide: Network Security, Authentication and Auditing
136
Dynamically created VPN client rules are always generated
with a remote mask of
255.255.255.255. Dynamic IPsec SAs
are created for VPN clients only when the remote partner has a
32-bit traffic selector for the client and requests that an IPsec
SA be established.
Typically, a dynamic endpoint SPD rule with a
Peer Address of
0.0.0.0 and an Action of Apply, is configured such that new
Apply rules are automatically added to the IPsec configuration
for VPN clients, as they are authenticated for network access.
NOTE
:
Dynamical-
ly extracted val-
ues for Remote IP
Address and Peer IP
Address can differ. The
remote portion is the
partner SA endpoint’s
data address. The peer
address is the partners
public address.
For example, with this dynamic SPD rule configured:
Policy Name:
VPPNclients
Priority:
94
Interface:
eth2
Local:
10.0.0.0/255.0.0.0
Remote:
0.0.0.0/0.0.0.0
Action:
Apply
Peer Address:
0.0.0.0
...if two VPN clients: x.x.x.11 and x.x.x.12, connect to the
10.0.0.0 network through the Mesh Point, the rule transparently
expands into:
Policy Name:
VPPNclients
Priority:
94
Interface:
eth2
Local:
10.0.0.0/255.0.0.0
Remote: x.x.x.11/255.255.255.255
Action:
Apply
Peer Address: x.x.x.11
Policy Name:
VPPNclients
Priority:
94
Interface:
eth2
Local:
10.0.0.0/255.0.0.0
Remote: x.x.x.12/255.255.255.255
Action:
Apply
Peer Address: x.x.x.12
Policy Name:
VPPNclients
Priority:
94
Interface:
eth2
Local:
10.0.0.0/255.0.0.0
Remote:
0.0.0.0/0.0.0.0
Action:
Apply
Peer Address:
0.0.0.0
with static client IP addresses
NOTE:
SPD entries
specifying static
IPsec peer IP addresses
as described in Section
4.4.2 can coexist with
dynamic SPDs.
On networks that use static IP addresses, a single dynamic
SPD rule can also be used to replace the multiple SPD entries
that would otherwise need to be manually configured, one per
IPsec peer.
An example of a dynamic SPD rule for a network that uses
static IP addresses would be:
policy name: dynmc-clientsFT
Priority: 50 Interface: lan7
Local: 0.0.0.0/0.0.0.0
Remote: 192.168.10.0/255.255.255.0