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Allowing ICMP traffic
46 Firebox SSL VPN Gateway
To change the system date and time
1 In the Administration Tool, click the VPN Gateway Cluster tab, select the appliance, and then click
the Date tab.
2In Time Zone, select a time zone.
3In Date, type the date and time.
4Click Submit.
Network Time Protocol
The Network Time Protocol transmits and receives time over TCP/IP networks. The Network Time Proto-
col is useful for synchronizing the internal clock of computers on the network to a common time source.
If you have a Network Time Protocol server in your secure network, you can use the Firebox SSL VPN
Gateway Administration Tool to configure the Firebox SSL VPN Gateway to synchronize the time with
the Network Time Protocol server.
To synchronize the Firebox SSL VPN Gateway with a Network Time Protocol server
1 In the Firebox SSL VPN Gateway Administration Tool, click the VPN Gateway Cluster tab.
2Click the Date tab.
3In Synchronization Mode, click Network Time Protocol (NTP).
4In NTP Server, type the FQDN of the server.
5In Synchronization Interval, select a schedule to perform updates.
Allowing ICMP traffic
Internet Control Message Protocol (ICMP) traffic to the Firebox SSL VPN Gateway is disabled by default.
To enable ICMP traffic, use the VPN Gateway Cluster > Administration tab.
When ICMP traffic is enabled, users can ping servers on the internal, secure network. The Firebox SSL
VPN Gateway itself cannot receive ICMP traffic.
To enable ICMP traffic
1 In the Administration Tool, click the VPN Gateway Cluster tab and select the appliance.
2On the Administration tab, select Enable ping.
3Click Apply Change.