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SMC Networks SMC TigerStack III SMC6824MPE User Manual

Page 395

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OMMANDS

4-133

• destination-bitmask – Destination address of rule must match this

bitmask.

• 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 you enter dscp, you cannot enter tos or precedence. You can enter

both tos and precedence 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.