3-24
Virus Throttling (Connection-Rate Filtering)
Configuring and Applying Connection-Rate ACLs
Figure 3-9. Examples of Connection-Rate ACEs Using UDP/TCP Criteria
< tcp-data > or < udp-data >
TCP or UDP Port Number or (Well-
Known) Port Name: Use the TCP or UDP port
number required for the desired match. The
switch also accepts certain well-known TCP or
UDP port names as alternates to their corre-
sponding port numbers:
TCP/UDP-PORT: Specify port by number.
bootpc: Bootstrap Protocol, client (68)
bootps: Bootstrap Protocol, server (67)
dns: Domain Name Service (53)
ntp: Network Time Protocol (123)
radius: Remote Authentication Dial-In User
Service (1812)
radius-old: Remote Authentication Dial-In
User Service 1645)
rip: Routing Information Protocol (520)
snmp: Simple Network Management Protocol
(161)
snmp-trap: Simple Network Management Pro-
tocol (162)
tftp: Trivial File Transfer Protocol (69)
HP Switch(config)# ignore tcp host 15.75.10.11 destination-port eq 1812
source-port eq 1812
HP Switch(config)# filter udp 15.75.10.0/24 source-port neq 162
destination-port eq 162
Ignore (allow) tcp traffic from the
host at 15.75.10.11 with both
source and destination tcp ports
of 1812.
Filter (drop) udp traffic from the
subnet at 15.75.10.0 with a
source udp port number not
equal to 162 and a destination
udp port number of 162.
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