Service Manual

Version Description
8.1.1.0 Introduced on the E-Series ExaScale.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
7.4.1.0 Added support for the non-contiguous mask and added the monitor option.
6.5.10 Expanded to include the optional QoS order priority for the ACL entry.
Usage
Information
The order option is relevant in the context of the Policy QoS feature only. For more information, refer to
the “Quality of Service” chapter of the Dell Networking OS Configuration Guide.
The software cannot count both packets and bytes; when you enter the count byte options, only bytes
are incremented.
Related
Commands
ip access-list extended — creates an extended ACL.
permit tcp — assigns a permit filter for TCP packets.
permit udp — assigns a permit filter for UDP packets.
permit tcp
To pass TCP packets meeting the filter criteria, configure a filter.
Syntax
permit tcp {source mask | any | host ip-address} [bit] [operator port
[port]] {destination mask | any | host ip-address} [bit] [dscp] [operator
port [port]] [count [byte] [order] [fragments] [no-drop]
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 tcp {source mask | any | host ip-address} {destination
mask | any | host ip-address} command.
Parameters
source Enter the IP address of the network or host from which the packets were sent.
mask Enter a network mask in /prefix format (/x) or A.B.C.D. The mask, when specified
in A.B.C.D format, may be either contiguous or non-contiguous.
any Enter the keyword any to specify that all routes are subject to the filter.
host ip-address Enter the keyword host then the IP address to specify a host IP address.
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
dscp Enter the keyword dscp to deny a packet based on the DSCP value. The range is
from 0 to 63.
operator (OPTIONAL) Enter one of the following logical operand:
● eq = equal to
● neq = not equal to
● gt = greater than
● lt = less than
208 Access Control Lists (ACL)