Barracuda Networks VERSION SP4 - Manual (Page 115)

113 Barracuda NG Network Access Client - Administrator’s Guide
• Merging multiple services to one service object using references.
The following services are available in the Barracuda NG Personal Firewall by default:
Properties of Service Objects are described in detail in the Barracuda NG Firewall Administrator’s Guide.
Fig. 9–23 Service Object dialog
Table 9–9 Service Objects available in the Personal Firewall
Service Name Port Protocol Connection Description
ICMP O / I Internet Control Message Protocol; ICMP messages, delivered in IP packets are used
for out-of-band messages related to network operation, or misoperation.
DNS 53 TCP/UDP O Domain Name Service; method by which the Internet addresses in mnemonic form
(for example phion.com) are converted into the equivalent numeric IP address (for
example 134.220.4.1)