Dell Force10 TeraScale C Series, Справочное руководство

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Access Control Lists (ACL) | 241
permit udp
c e s
Configure a filter to pass UDP packets meeting the filter criteria.
Syntax permit udp { source mask | any | host ip-address } [ operator port [ port ]] { destination mask |
any | host ip-address } [ 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 syntax if you know the filter’s sequence number
or
• Use the no permit udp { source mask | any | host ip-address } { destination mask | any |
host ip-address } command.
Parameters
Defaults
Not configured.
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
followed by the IP address to specify a host IP address.
dscp
Enter this keyword to deny a packet based on DSCP value.
Range: 0-63
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 (OPTIONAL) Enter the application layer port number. Enter two port numbers if
using the
range
logical operand.
Range: 0 to 65535
destination Enter the IP address of the network or host to which the packets are sent.
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, E-Series only) Enter the keyword
log
to enter ACL matches in the log.
order
(OPTIONAL) Enter the keyword
order
to specify the QoS priority for the ACL
entry.
Range: 0-254 (where 0 is the highest priority and 254 is the lowest; lower order
numbers have a higher priority)
Default: If the order keyword is not used, the ACLs have the lowest order by
default (255).
monitor
(OPTIONAL) Enter the keyword
monitor
when the rule is describing the traffic that
you want to monitor and the ACL in which you are creating the rule will be applied to
the monitored interface. For details, see the section “Flow-based Monitoring” in the
Port Monitoring chapter of the
FTOS Configuration Guide .
fragments
Enter the keyword
fragments
to use ACLs to control packet fragments.