3Com OfficeConnect 3C16771 User Manual page 102

102 C 4: C
HAPTER
The scroll list on the right side of the screen displays all IP
protocols that are currently defined and that appear in the
Services window. Next to the name of the protocol, two
numbers appear in brackets. The first number indicates the
IP port number which defines the service (either TCP Port,
UDP Port, or ICMP Type). The second number indicates the
IP protocol type (6 for TCP, 17 for UDP, or 1 for ICMP).
There may be more than one entry with the same name.
For example, the default configuration has two entries
labeled Name Service (DNS). These are UDP port 53 and
TCP port 53. Any entries with identical names are grouped
together, and are treated as a single service. Up to 128
entries are supported.
To add support for a well-known service by name:
1 Select the name of the service from the Add a known
service drop-down list.
2 Click Add.
The new service appears in the list box to the right, along
with its numeric protocol description. Note that some
well-known services add more than one entry to the list
box. To add a custom service:
1 From Add a known service drop-down list, select Custom
Service.
2 In the Name box, type a unique name, such as
Microsoft SQL
3 In the Port box, type the IP port number.
4 From the Protocol drop-down list, select the IP protocol
type.
5 Click Add.
The new service appears in the list box. For a list of IP port
numbers, see:
http://www.normos.org/ietf/rfc/rfc1700.txt
If you create multiple entries with the same name, they are
grouped together as a single service and may not function
as expected.
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OMMAND EFERENCE
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