Cisco Systems OL-4580-01 manual Configuring ARP Mapping, arp iporhost macaddress interface vlan

Chapter 4 Configuring the Address Resolution Protocol

Configuring ARP Mapping

Configuring ARP Mapping

To define a static ARP mapping, use the arp command. The syntax for this global configuration mode command is:

arp ip_or_host mac_address interface {vlan}

The variables and options are as follows:

•ip_or_host - The IP address of the system for static mapping. Enter an IP address in dotted-decimal notation (for example, 192.168.11.1) or in mnemonic host-name format (for example, myhost.mydomain.com).

•mac_address - The MAC address of the system mapped to the IP address. Enter the MAC address in hyphenated-hexadecimal notation (for example, 00-60-97-d5-26-ab).

•interface - The CSS Ethernet interface port that you want to configure. For a CSS 11501, enter the interface name in interface port format (for example, e2). For a CSS 11503 or CSS 11506, the interface format is slot/port (for example, 3/1).

•vlan - The number of the VLAN configured in a trunked interface on which the ARP address is configured (assuming trunking is enabled for the CSS Gigabit Interface port). Enter an integer from 1 to 4094 as the VLAN number.

For example:

(config)# arp 192.168.11.1 00-60-97-d5-26-ab e2

To remove a static mapping address, use the no arp command. For example:

(config)# no arp 192.168.11.1

Note The CSS discards ARP requests from hosts not on the same network as the CSS circuit IP address. Thus, if a CSS and a host are within the same VLAN but configured for different IP networks, the CSS does not respond to ARP requests from the host.

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