Ericsson ECN330, Руководство пользователя

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Command Line Interface
700
1553-KDU 137 365 Uen D 2006-06-16
•
precedence
– Check the IP precedence field.
•
tos
– Check the TOS field.
•
dscp
– Check the DSCP field.
•
source-port
– Check the protocol source port field.
•
destination-port
– Check the protocol destination port field.
•
port-bitmask
– Protocol port of rule must match this bitmask.
(Range: 0-65535)
•
control-flag
– Check the field for control flags.
•
flag-bitmask
– Control flags of rule must match this bitmask.
(Range: 0-63)
Default Setting
None
Command Mode
IP Mask
Command Usage
• Packets crossing a port are checked against all the rules in the ACL until
a match is found. The order in which these packets are checked is
determined by the mask, and not the order in which the ACL rules were
entered.
• First create the required ACLs and ingress or egress masks before
mapping an ACL to an interface.
• If
dscp
is entered,
tos
or
precedence
cannot be entered. Both
tos
and
precedence
can be entered without
dscp
..
• Masks that include an entry for a Layer 4 protocol source port or
destination port can only be applied to packets with a header length of
exactly five bytes.