Chapter 22 WAN Optimization, Web Cache, Explicit Proxy, and WCCP for FortiOS 5.0 : FortiClient WAN optimization : FortiClient WAN optimization over SSL VPN configuration example
  
FortiClient WAN optimization over SSL VPN configuration example
This example shows how to add WAN optimization to a FortiClient SSL VPN. The SSL VPN tunnel allows remote FortiClient users to connect to the internal network behind the FortiGate unit as shown in Figure 407.
Figure 407: Example FortiClient WAN optimization configuration
To configure the FortiGate unit
Because computers running FortiClient can have IP addresses that change often, it is usually not practical to add FortiClient peers to the FortiGate WAN optimization peer list. Instead, a FortiGate unit that accepts WAN optimization tunnel requests from FortiClient is usually configured to accept any peer (see “Accepting any peers”). This example does this by adding a WAN optimization authentication group with Peer acceptance set to Accept Any Peer.
In addition this example includes a wanopt to internal policy to allow WAN optimization traffic reach the internal network. Finally passive WAN optimization is added to the ssl.root policy because WAN optimization is accepting traffic from the SSL VPN tunnel.
1. Go to WAN Opt. & Cache > WAN Opt. Peer > Authentication Group and select Create New.
2. Configure the WAN optimization authentication group:
Name
auth-fc
Authentication Method
Certificate
Certificate
Fortinet_Firmware
Peer Acceptance
Accept Any Peer
3. Select OK.
4. Go to WAN Opt. & Cache > WAN Opt. Profiles > Profiles and select Create New (select the + button).
5. Add a profile for FortiClient WAN optimization sessions:
Name
Fclient_Pro
Transparent Mode
Select
Authentication Group
auth-fc
6. Select any Protocols and any settings for each protocol.
7. Select OK.
8. Go to Firewall Objects > Address > Addresses and select Create New to add a firewall address for the internal network that FortiClient users can access.
Category
Address
Address Name
Internal-Server-Net
Type
IP Range
Subnet / IP Range
192.168.10.0/24
Interface
internal
9. Go to Policy > Policy > Policy and select Create New to add a WAN optimization tunnel policy.
Policy Type
Firewall
Policy Subtype
Address
Incoming Interface
wanopt
Source Address
all
Outgoing Interface
internal
Destination Address
all
Schedule
always
Service
ALL
Action
ACCEPT
10. Select OK.
11. Select Create New to add an ssl.root policy with passive WAN optimization.
 
If you already have an ssl.root to internal policy you can edit it and enable passive WAN optimization as shown in Step 13.
Policy Type
Firewall
Policy Subtype
Address
Incoming Interface
ssl.root
Source Address
all
Outgoing Interface
internal
Destination Address
Internal-Server-Net
Schedule
always
Service
ALL
Action
ACCEPT
12. Optionally, select the Security Profiles to apply to the WAN optimization traffic.
13. Select Enable WAN Optimization and configure the following settings:
Enable WAN Optimization
passive
Passive Option
default
14. Select OK.
To configure FortiClient and start the WAN optimization SSL VPN connection
1. Open FortiClient, configure Advanced settings, and select Enable WAN optimization.
2. Add a new SSL VPN connection.
Set the Server to the WAN1 IP address of the FortiGate unit (172.20.120.30 in this example) and the correct SSL VPN port number (usually 10443 or 443).
No other settings are required for this example. You can add authentication in the form of a user name and password if required by the FortiGate unit.
3. Start the SSL VPN tunnel.
4. Accept the certificate.
You should be connected to the SSL VPN tunnel and traffic in it should be optimized.