Accton Technology ES3528M-SFP Any destination address-bitmask host destination, Extended ACL

4 Command Line Interface

Syntax

[no] {permit deny} [protocol-number udp] {any source address-bitmask host source}

{any destination address-bitmask host destination}

[source-port sport [end]] [destination-port dport [end]]

[no] {permit deny} tcp

{any source address-bitmask host source}

{any destination address-bitmask host destination}

[source-port sport [end]] [destination-port dport [end]]

•protocol-number– A specific protocol number. (Range: 0-255)

•source – Source IP address.

•destination – Destination IP address.

•address-bitmask– Decimal number representing the address bits to match.

•host – Keyword followed by a specific IP address.

•sport – Protocol17 source port number. (Range: 0-65535)

•dport – Protocol17 destination port number. (Range: 0-65535)

•end – Upper bound of the protocol port range. (Range: 0-65535)

Default Setting

None

Command Mode

Extended ACL

Command Usage

•All new rules are appended to the end of the list.

•Address bitmasks are similar to a subnet mask, containing four integers from 0 to 255, each separated by a period. The binary mask uses 1 bits to indicate “match” and 0 bits to indicate “ignore.” The bitmask is bitwise ANDed with the specified source IP address, and then compared with the address for each IP packet entering the port(s) to which this ACL has been assigned.

Example

This example accepts any incoming packets if the source address is within subnet 10.7.1.x. For example, if the rule is matched; i.e., the rule (10.7.1.0 & 255.255.255.0) equals the masked address (10.7.1.2 & 255.255.255.0), the packet passes through.

Console(config-ext-acl)#permit 10.7.1.1 255.255.255.0 any

Console(config-ext-acl)#

17. Includes TCP, UDP or other protocol types.

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