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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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