Dell Networking S4810, Reference Manual

Page: 236 / 1761

address } [ bit ] [dscp] [ operator port [ port ]] [count [byte] |
log] [order] [monitor] [fragments]
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
•
range
= inclusive range of ports (you must specify two
ports for the port parameter)
port port Enter the application layer port number. Enter two port
numbers if you are using the range logical operand. The
range is from 0 to 65535.
The following list includes some common TCP port
numbers:
• 23 = Telnet
236
Access Control Lists (ACL)