Reference Guide

permit
Select an IPv6 protocol number, ICMP, IPv6, TCP, or UDP to configure a filter that match the filter criteria.
C-Series, E-Series, S-Series, S4810
Syntax
permit {ipv6-protocol-number | icmp | ipv6 | tcp | udp}
To remove this filter, you have two choices:
• Use the no seq sequence-number command syntax if you know the filter’s
sequence number
• Use the no permit {ipv6-protocol-number | icmp | ipv6 | tcp
| udp}
command
Parameters
ip-protocol-
number
Enter an IPv6 protocol number. The range is 0 to 255.
icmp Enter the keyword icmp to filter Internet Control Message Protocol
version 6.
ipv6 Enter the keyword ipv6 to filter any Internet Protocol version 6.
tcp Enter the keyword tcp to filter the Transmission Control protocol.
udp Enter the keyword udp to filter the User Datagram Protocol.
Defaults Not configured.
Command Modes ACCESS-LIST
Command History
Version 8.3.7.0 Introduced on the S4810.
permit icmp
Configure a filter to allow all or specific internet control message protocol (ICMP) messages.
C-Series, E-Series, S-Series, S4810
Syntax
permit icmp {source address mask | any | host ipv6-address}
{destination address | any | host ipv6-address} [message-type]
[count [byte]] | [log] [monitor]
To remove this filter, you have two choices:
• Use the no seq sequence-number command if you know the filter’s sequence
number.
• Use the no permit icmp {source address mask | any | host
ipv6-address} {destination address | any | host ipv6-
address} command.
Parameters
source address Enter the IPv6 address of the network or host from which the packets
were sent in the x:x:x:x::x format followed by the prefix length in the /x
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