A network service alias is a set of configurations that consist of protocol and port mappings. Both source and destination ports are configurable. For each protocol, up to two source port ranges and up to two destination port ranges can be configured. A maximum of four protocol entries can be configured per network service alias.
Use a service alias to associate more than one IP address to a network interface, providing multiple connections to a network from a single IP node.
A network service alias can be used to substitute protocols and ports in IP firewall rules.
To edit or delete a network service alias configuration:
Use Copy to create a copy of the selected policy and modify it for further use. Use Rename to rename the selected policy.
Note
The Network Service Alias Name always starts with a dollar sign ($).Protocol | Specify the protocol for which the alias is created. Use the drop down to select the protocol from eigrp, gre, icmp, igmp, ip, vrrp, igp, ospf, tcp and udp. Select other if the protocol is not listed. When a protocol is selected, its protocol number is automatically selected. |
Source Port (Low and High) | This field is relevant only if the
protocol is tcp or udp. Specify the source ports for this protocol entry. A range of ports can be specified. Select the Enter Ranges button next to the field to enter a lower and higher port range value. Up to eight (8) ranges can be specified. |
Destination Port (Low and High) | This field is relevant only if the
protocol is tcp or udp. Specify the destination ports for this protocol entry. A range of ports can be specified. Select the Enter Ranges button next to the field to enter a lower and higher port range value. Up to eight (8) such ranges can be specified. |