When a user requests access to a given host, it may be prudent to direct that request to an IP address that differs from the one provided with DNS resolution. Possible reasons to do this are:
If a hostname is not resolvable via the primary DNS server
If a host, (such as example).com resolves to 22.214.171.124 but if that is not reachable from your ProxySG Appliance, you want it to failover to another IP maybe an internal IP which is 192.168.x.x
You want to perform failover for multiple forwarding hosts
To do this, use the forwarding function on the proxy. Create two forwarding hosts, each with a different IP address and use a forwarding group to perform the failover. In the VPM under the forwarding action, you can define two forwarding hosts in sequence. If the first forwarding host is unavailble, the Proxy will failover to the second host.
Step by step :
- Create forwarding hosts
1. Go to Management Console -> Configuration -> Forwarding -> Forwarding Hosts
2. Create the forwarding hosts you need and put in the IP address of those hosts
- Create forwarding policy
1. Go to Management Console -> Configuration -> Policy -> Visual Policy Manager - Launch
2. Create a forwarding layer from the menu above, click on Policy and click on add forwarding layer
3. Set the destination that you want to forward to, under the destination column, right click and select new server URL
4. Under the action column, right click and click set
5. Click new and select forwarding
6. Add the forwarding hosts with the IP that you setup previously and put it to the right hand side of the column
7. Click ok and ok and click on the install policy.
8. The forwarding layer should look like below :
With that, the ProxySG Appliance will attempt to reach www.example.com via the IP address defined in the first forwarding host. if that fails, the proxy will connect to the second IP address.
Imported Document ID: 000010280
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