•Remote Desktop
•NFS
•NetInfo
UDP ports above 1023 are allocated dynamically by certain services, so their exact port numbers may not be determined in advance.
Addresses can be listed as individual addresses (192.168.2.2) or IP address and CIDR netmask (192.168.2.0/24).
To easily configure UDP access for these ports, see “Opening the Firewall for Standard Services” on page 49. If you need more advanced firewall settings for these basic UDP services, use the following instructions to create them.
To create an IP filter for UDP ports:
1In Server Admin, choose Firewall from the Computers & Services list.
2Click Settings.
3Select the Advanced tab.
4Click the New button.
Alternatively, you can select a rule similar to the one you want to create, and click Duplicate then Edit.
5Select whether this filter will allow or deny access in the Action
6Choose UDP from the Protocol
7Choose a UDP service from the
If you want to select a nonstandard service port, choose Other.
8If desired, choose to log packets that match the filter.
9Enter the Source IP address range you want to filter.
If you want it to apply to any address, choose Any from the
If you have selected a nonstandard service port, enter the source port number.
10Enter the Destination IP address range you want to filter.
If you want it to apply to any address, choose Any from the
If you have selected a nonstandard service port, enter the source port number.
11Choose which network interface this filter applies to.
12Click OK.
13Click Save to apply the filter immediately.
Chapter 3 IP Firewall Service
53
