Barracuda Networks VERSION SP4 - Manual (Page 163)

161 Barracuda NG Network Access Client - Administrator’s Guide
Edit… button. If required, clear the Access Control Server IP addresses, which are received through
DHCP, with the button Clear Policy IPs .
11.3.4 ICMP Connectivity Checking
As an advanced feature, the Barracuda NG Access Monitor is able to determine the connectivity to the
Access Control Server using ICMP packets. If this option is enabled the Barracuda NG Access Monitor
will send an ICMP packet to the Access Control Server, before connecting and starting health
evaluation. If the ICMP packet sent, returns successfully the Barracuda NG Access Monitor will
connect to the Access Control Server and start health evaluation. When this option is disabled, the
Barracuda NG Access Monitor will start immediately connecting to the Access Control Server, instead
of checking for connectivity first.
It is highly recommended to enable this feature when connecting to the Access Control Server through
a VPN connection; otherwise connectivity may not be as satisfying as expected.
To edit this option manually, modify the following registry key:
11.3.5 Offline Check
Allows to disable the Health Agent if no network connection is active. This prevents the local firewall
from unwantedly entering quarantine mode. The default and recommended value is
Yes .
Fig. 11–12 Access Control Server IP addresses, received by DHCP.
When ICMP Connectivity checking is enabled, the NG Firewall must be configured to pass through ICMP packets,
otherwise the Barracuda NG Access Monitor will not connect to the Access Control Server.
Table 11–6 Registry entry for ICMP connectivity
Item Description
Path HKEY_USERS\.Default\Software\phion\phionha\settings
Key ICMPProbing
Value (Default=1)
0 - disabled
1 - enabled