Cisco Catalyst 2000 Configuration Handbook page 318

Table B-3 Commonly Used Protocols and Associated Port Numbers
Keyword
wap-vcal
wap-vcard-s
wap-vcal-s
bmc-perf-sd
h323callsigalt
vofr-gateway
quake
flex-lm
traceroute
reachout
B-4: Well-Known IP Multicast Addresses
Some client server applications use a multicast packet to send large streams of data to
many hosts with a single transmission. The multicast packet uses special addressing at
Layer 3 and Layer 2 to communicate with clients that have been configured to receive
these packets. The multicast packet contains a Class D IP address to specify the group of
devices that are to receive the packet. This group is known as the multicast group, and
the IP address translates directly to a multicast Ethernet address. The Ethernet multicast
address has the first 24 bits set to 01-00-5E, the next bit is set to 0, and the last 23 bits
are set to match the low 23 bits of the IP multicast address. Figure B-6 shows how Layer
3 multicast addresses translate to Layer 2 Ethernet addresses.
Appendix B: Well-known Protocol, Port, and Other Numbers 297
Description
WAP vCal
WAP vCard Secure
WAP vCal Secure
BMC-PERFORM-
SERVICE DAEMON
h323 Call Signal Alternate
VoFR Gateway
quake
FLEX LM (1–10)
traceroute use
REACHOUT
UDP/TCP
Port
9205
9206
9207
10128
11720
21590
26000
27000 to 27009
33434
43188