F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices High Availability Configuration Guide-6PW100

189
193BConfiguring public parameters
1. Select High Reliability > Load Balance > Public Setting from the navigation tree.
The public parameter configuration page appears.
Figure 93 Public parameter configuration
2. Set whether to enable the saving last hop information function.
Enabling this function makes sure responses can be returned on the original path. This function
must be enabled on level 2 LB devices in firewall load balancing.
3. Click Apply.
194BConfiguring a health monitoring method
Load balancing supports multiple health monitoring types. This section describes only the types
supported by server load balancing and physical links. The following health monitoring types, unless
otherwise stated, are only supported by server load balancing.
• ARP—Monitors the availability of a server through ARP.
• DNS—Monitors the availability of a DNS server through DNS.
• FTP—Monitors the availability of an FTP server through FTP.
• HTTP—Monitors the availability of an HTTP service through HTTP access.
• ICMP—Monitors the reachability of a server by sending ICMP messages.
• SIP—Monitors the availability of a SIP server through the SIP application.
• SNMP—Monitors the availability of an SNMP server through SNMP.
• TCP—Monitors the availability of an application port by establishing TCP connections.
• UDPNORMAL—Monitors the availability of an application port by sending UDP packets.
UDPNORMAL health monitoring does not require server response, so HP recommends that you use
it together with the ICMP health monitoring type. The reachability of the server is determined
through ICMP detection.
To configure a health monitoring method:
1. Select High Reliability > Load Balance > Health Monitor from the navigation tree.
The heath monitoring page appears.