Ericsson ECN330, User Manual

Page: 719 / 1226

Command Line Interface
713
1553-KDU 137 365 Uen D 2006-06-16
• The precedence of the ACL rules applied to a packet is not determined
by order of the rules, but instead by the order of the masks; that is, the
first mask that matches a rule will determine the rule that is applied to a
packet.
Example
Related Commands
mask
(MAC ACL) (section 7.8.14 on page 713)
mac access-group
(section 7.8.16 on page 717)
7.8.14 mask (MAC ACL)
This command defines a mask for MAC ACLs. This mask defines the fields to
check in the packet header. Use the
no
form to remove a mask.
Syntax
[no] mask [pktformat]
{any | host | < source-bitmask >}
{any | host | < destination-bitmask >}
[vid [
vid-bitmask
]] [ethertype [
ethertype-bitmask
]]
•
pktformat
– Check the packet format field. (If this keyword must
be used in the mask, the packet format must be specified in ACL
rule to match.)
•
any
– Any address will be matched.
•
host
– The address must be for a single node.
•
source-bitmask
– Source address of rule must match this
bitmask.
•
destination-bitmask
– Destination address of rule must match
this bitmask.
•
vid
– Check the VLAN ID field.
Console(config)#access-list mac mask-precedence in
Console(config-mac-mask-acl)#