Command Line Reference Guide
IPv6 Access Control Lists (IPv6 ACLs) | 669
Defaults
Not configured.
Command Modes
ACCESS-LIST
Command
History
Usage
Information
The C-Series cannot count both packets and bytes, so when you enter the count byte options, only
bytes are incremented.
Most ACL rules require one entry in the CAM. However, rules with TCP and UDP port operators (gt,
lt, range) may require more than one entry. The range of ports is configured in the CAM based on
bitmask boundaries; the space required depends on exactly what ports are included in the range.
For example, an ACL rule with TCP port range 4000 - 8000 uses 8 entries in the CAM:
Rule# Data Mask From To #Covered
1 0000111110100000 1111111111100000 4000 4031 32
2 0000111111000000 1111111111000000 4032 4095 64
3 0001000000000000 1111100000000000 4096 6143 2048
4 0001100000000000 1111110000000000 6144 7167 1024
5 0001110000000000 1111111000000000 7168 7679 512
6 0001111000000000 1111111100000000 7680 7935 256
7 0001111100000000 1111111111000000 7936 7999 64
8 0001111101000000 1111111111111111 8000 8000 1
Total Ports: 4001
destination address
Enter the IPv6 address of the network or host to which the packets are sent in the
x:x:x:x::x format followed by the prefix length in the /x format.
Range: /0 to /128
The :: notation specifies successive hexadecimal fields of zero.
bit
Enter a flag or combination of bits:
ack: acknowledgement field
fin: finish (no more data from the user)
psh: push function
rst: reset the connection
syn: synchronize sequence numbers
urg: urgent field
count (OPTIONAL) Enter the keyword count to count packets processed by the filter.
byte (OPTIONAL) Enter the keyword byte to count bytes processed by the filter.
log (OPTIONAL) Enter the keyword log to enter ACL matches in the log.
monitor (OPTIONAL) Enter the keyword monitor to monitor traffic on the monitoring
interface specified in the flow-based monitoring session along with the filter
operation.
Version 8.4.2.1 Introduced on the S-Series
Version 8.2.1.0 Introduced on the E-Series ExaScale
Version 7.8.1.0 Introduced on the C-Series
Version 7.4.1.0 Introduced on the E-Series TeraScale
Added
monitor option