HP VPN Firewall Appliances High Availability Configuration Guide

210
2. Set whether to enable the saving last hop information function.
Enabling this function makes sure responses can be returned on the original path.
Configuring a health monitoring method
You can configure the health monitoring method for a physical link and the best performing link function:
1. Load balancing supports the following health monitoring types for a physical link:
{ ICMP—Monitors the reachability of a server by sending ICMP messages.
{ TCP Half Open—Monitors the availability of an application port through a TCP half open
connection.
2. The system defines the following health monitoring methods for the best performing link function:
{ proxim_dns—Monitors the reachability of a remote address and obtains the best performing
link parameters by sending DNS messages. It is not supported by outbound link load
balancing.
{ proxim_icmp—Monitors the reachability of a remote address and obtains the best performing
link parameters by sending ICMP messages.
{ proxim_tcp_half_open—Monitors the reachability of a remote address and obtains the best
performing link parameters through a TCP half open connection.
Configuring the health monitoring method for a physical link
1. Select High Reliability > Load Balance > Health Monitor from the navigation tree.
The heath monitoring page appears.
Figure 110 Health monitoring