Barracuda Networks VERSION SP4 Automatic Adapter Configuration, However, it will not pop up if

Table 9–11Services and protocols employed by the ADSL rule

Port	Protocol	Service Name	Description
	GRE	pptp	Generic Routing Encapsulation; protocol which allows an arbitrary
			network protocol A to be transmitted over any other arbitrary network
			protocol B, by encapsulating the packets of A within GRE packets,
			which in turn are contained within packets of B
1723	TCP	NETBIOS-DGM	Point-to-point tunnelling protocol; control port

9.9.1Automatic Adapter Configuration

Set option Ask for adapter update confirmation in the Firewall Settings view (page 120) to yes (default), if you would like to be notified, when adapter configurations change. A security alert window will then pop-up, asking for configuration change confirmation.

Click Untrust to add the adapter to the Adapter Objects list and assign it as Untrusted adapter. This will create an incoming adapter block rule in the Incoming tab of the firewall rule set configuration area (9.8.2 Rules, page 104).

Click Trust to add the adapter to the Adapter Objects list and assign it as Trusted adapter. This will add a reference to the trusted adapter in the TrustedNet object and delete a possibly existing incoming adapter block rule in the Incoming tab of the firewall rule set configuration area (9.8.2 Rules, page 104).

Generally, the security alert window will pop up if:

•... an adapter is used for the first time, for example if it is added to the system.

•... the IP configuration of an adapter changes, for example if an IP address is added or deleted.

However, it will not pop up if:

•... an IP address is reintroduced (for example, DHCP renew).

•... an adapter’s IP configuration is reset to 0.0.0.0.

For a detailed description of adapter configuration options see 9.8.6 Adapters, page 108.

121 Barracuda NG Network Access Client - Administrator’s Guide