Reference Guide

Supported Releases 10.2.0E or later
deny udp
Congures a lter to drop user datagram protocol (UDP) packets meeting the lter criteria.
Syntax
deny udp [A.B.C.D | A.B.C.D/x | any | host ip-address [eq]] [A.B.C.D |
A.B.C.D/x | any | host ip-address [eq]] [ack | fin | psh | rst | syn | urg]
[capture |count [byte] | dscp value | fragment]
Parameters
• A.B.C.D — Enter the IP address in dotted decimal format.
• A.B.C.D/x — Enter the number of bits to match to the dotted decimal address.
• any — (Optional) Set all routes which are subject to the lter:
• capture — (Optional) Capture packets the lter processes.
• count — (Optional) Count packets the lter processes.
• byte — (Optional) Count bytes the lter processes.
• dscp value — (Optional) Deny a packet based on the DSCP values, from 0 to 63.
• fragment — (Optional) Use ACLs to control packet fragments.
• eq — (Optional) Deny packets which are equal to.
• ack — (Optional) Set the bit as acknowledgement.
• fin — (Optional) Set the bit as nish—no more data from sender.
• psh — (Optional) Set the bit as push.
• rst — (Optional) Set the bit as reset.
• syn — (Optional) Set the bit as synchronize.
• urg — (Optional) Set the bit set as urgent.
• host ip-address — (Optional) Enter the IP address to use a host address only.
Default Not congured
Command Mode IPV4-ACL
Usage Information OS10 cannot count both packets and bytes; when you use the count byte options, only bytes increment. The
no version of this command removes the lter.
Example
OS10(config)# ip access-list testflow
OS10(conf-ipv4-acl)# deny udp any any capture session 1 count
Supported Releases 10.2.0E or later
deny udp (IPv6)
Congures a lter to drop UDP IPv6 packets that match lter criteria.
Syntax
deny udp [A::B | A::B/x | any | host ipv6-address [eq]] [A::B | A:B/x | any |
host ipv6-address [eq]] [ack | fin | psh | rst | syn | urg] [capture | count
[byte] | dscp value | fragment]
Parameters
• A::B — Enter the IPv6 address in hexadecimal format separated by colons.
• A::B/x — Enter the number of bits to match to the IPv6 address.
Access Control Lists 423