D-Link DXS-3600-EM-8T CLI Guide - Page 26

ip access-list extended

Page 26 highlights

DXS-3600 Series 10GbE Layer 2/3 Switch CLI Reference Guide Parameters sn source source-wildcard host source any (Optional) Specifies the ACE sequence number used. This number must be between 1 and 65535. Specifies the source IP address. Masks are used with IP addresses in IP ACLs to specify what should be permitted and denied. Masks, in order to configure IP addresses on interfaces, start with 255 and have the large values on the left side. For example, IP address 209.165.202.129 with a 255.255.255.224 mask. Masks for IP ACLs are the reverse, for example, mask 0.0.0.255. This is sometimes called an inverse mask or a wildcard mask. When the value of the mask is broken down into binary (0s and 1s), the results determine which address bits are to be considered in processing the traffic. A 0 indicates that the address bits must be considered (exact match); a 1 in the mask is not considered. Specifies a specific source IP address. Means any source IP address. Default Command Mode Command Default Level Usage Guideline None. Standard IP Access-list Configuration Mode. Level: 12 A sequence number will be assigned automatically if the user does not assign it manually. The automatically assign sequence number starts from 10, and increase 10 per new entry. The start sequence number and sequence increment of the IP ACL can be configured manually. Example This example shows how to create a standard IP ACL, named Std-ip. This entry will permit packets to the source network 10.20.0.0/16. DXS-3600-32S#configure terminal DXS-3600-32S(config)#ip access-list standard Std-acl DXS-3600-32S(config-std-nacl)#permit 10.20.0.0 0.0.255.255 DXS-3600-32S(config-std-nacl)#end DXS-3600-32S#show access-list Standard IP access list 1998 Std-acl 10 permit 10.20.0.0 0.0.255.255 Standard IP access list 1999 Std-ip DXS-3600-32S# 3-3 ip access-list extended This command is used to create or modify an extended IP ACL. This command will enter into the extended IP accesslist configuration mode. Use the no command to remove an extended IP access-list. ip access-list extended {[id | name]} no ip access-list extended {id | name} Parameters id name Specifies the ID number of the extended IP ACL. This value must be between 2000 and 3999. Specifies the name of the extended IP access-list to be configured. The name can be up to 32 characters. Default Command Mode Command Default Level None. Global Configuration Mode. Level: 12 18

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DXS-3600 Series 10GbE Layer 2/3 Switch CLI Reference Guide
18
Parameters
3-3
ip access-list extended
This command is used to create or modify an extended IP ACL. This command will enter into the extended IP access-
list configuration mode. Use the no command to remove an extended IP access-list.
ip access-list extended {[
id
|
name
]}
no ip access-list extended {
id
|
name
}
Parameters
sn
(Optional) Specifies the ACE sequence number used. This number must be between
1 and 65535.
source source-wildcard
Specifies the source IP address. Masks are used with IP addresses in IP ACLs to
specify what should be permitted and denied. Masks, in order to configure IP
addresses on interfaces, start with 255 and have the large values on the left side.
For example, IP address 209.165.202.129 with a 255.255.255.224 mask. Masks for
IP ACLs are the reverse, for example, mask 0.0.0.255. This is sometimes called an
inverse mask or a wildcard mask. When the value of the mask is broken down into
binary (0s and 1s), the results determine which address bits are to be considered in
processing the traffic. A 0 indicates that the address bits must be considered (exact
match); a 1 in the mask is not considered.
host
source
Specifies a specific source IP address.
any
Means any source IP address.
Default
None.
Command Mode
Standard IP Access-list Configuration Mode.
Command Default Level
Level: 12
Usage Guideline
A sequence number will be assigned automatically if the user does not assign it
manually. The automatically assign sequence number starts from 10, and increase
10 per new entry. The start sequence number and sequence increment of the IP
ACL can be configured manually.
Example
This example shows how to create a standard IP ACL, named Std-ip. This entry will
permit packets to the source network 10.20.0.0/16.
DXS-3600-32S#configure terminal
DXS-3600-32S(config)#ip access-list standard Std-acl
DXS-3600-32S(config-std-nacl)#permit 10.20.0.0 0.0.255.255
DXS-3600-32S(config-std-nacl)#end
DXS-3600-32S#show access-list
Standard IP access list 1998 Std-acl
10 permit 10.20.0.0 0.0.255.255
Standard IP access list 1999 Std-ip
DXS-3600-32S#
id
Specifies the ID number of the extended IP ACL. This value must be between 2000
and 3999.
name
Specifies the name of the extended IP access-list to be configured. The name can be
up to 32 characters.
Default
None.
Command Mode
Global Configuration Mode.
Command Default Level
Level: 12