Field
Description
taken into account in the context of load balancing. Links
between the load balancing function and the host surveillance
function are made through the configuration of the Tracking IP
Address in the Load Balancing->Load Balancing
Groups->Advanced Settings menu. The interface's load bal-
ancing status now varies according to the status of the assigned
host surveillance entry.
Select the IP address for the route to be monitored.
You can choose from the IP addresses you have entered in the
Local Services->Surveillance->Hosts->New menu under
Monitored IP Address and which are monitored with the aid of
the Action to be executed field (Action =
.
).
11.4.2 Special Session Handling
Special Session Handling enables you to route part of the data traffic to your device via a
particular interface. This data traffic is excluded from the Load Balancing function.
You can use the Special Session Handling function with online banking, for example, to
ensure that the HTTPS data traffic is sent to a particular link. Since a check is run in online
banking to see whether all the data traffic comes from the same source, data transmission
using Load Balancing might be terminated at times without Special Session Handling.
The Networking->Load Balancing->Special Session Handling menu displays a list of
entries. If you have not configured any entries, the list is empty.
Every entry contains parameters which describe the properties of a data packet in more or
less detail. The first data packet which the properties configured here match specifies the
route for particular subsequent data packets.
Which data packets are subsequently routed via this route is configured in the Networking-
>Load Balancing->Special Session Handling->New->Advanced Settings menu.
If in the Networking->Load Balancing->Special Session Handling->New menu, for ex-
ample, you select the parameter Service =
! "$#
(and leave the default value for
all the other parameters), the first HTTPS packet specifies the Destination Address and
the Destination Port (i. e. Port 443 with HTTPS) for data packets sent subsequently.
If, underFrozen Parameters , for the two parameters Destination Address and Destina-
tion Port you leave the default setting
7+
, the HTTPS packets with the same source
IP address as the first HTTPS packet are routed via port 443 to the same Destination Ad-
dress via the same interface as the first HTTPS packet.
11 Networking
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