Command Reference Guide

Command Reference Guide (ISCLI) Command Reference Guide (ISCLI) 91
Default Gateway configuration
The switch supports up to four gateways. By default, no gateways are configured on the switch. Enter 1, 2, 3, or 4
in the command as the <gateway instance>, depending upon which gateway you want to configure. Gateway 4 is
reserved for switch management.
The following table describes the Default IP Gateway Configuration commands.
Table 102 Default IP Gateway Configuration commands
Command
Description
ip gateway <1-4> address <IP
address>
Configures the IP address of the default IP gateway using dotted
decimal notation.
Command mode: Global configuration
ip gateway <1-4> interval <0-
60>
The switch pings the default gateway to verify that it is up. This option
sets the time between health checks. The range is from 0 to 60
seconds. The default is 2 seconds.
Command mode: Global configuration
ip gateway <1-4> retry <1-120>
Sets the number of failed health check attempts required before
declaring this default gateway inoperative. The range is from 1 to 120
attempts. The default is 8 attempts.
Command mode: Global configuration
[no] ip gateway <1-4> arp-
health-check
Enables or disables Address Resolution Protocol (ARP) health checks.
This command is disabled by default.
Command mode: Global configuration
ip gateway <1-4> enable
Enables the gateway for use.
Command mode: Global configuration
no ip gateway <1-4> enable
Disables the gateway.
Command mode: Global configuration
no ip gateway <1-4>
Deletes the gateway from the configuration.
Command mode: Global configuration
show ip gateway <1-4>
Displays the current gateway settings.
Command mode: All except User EXEC
NOTE: Gateway 4 is reserved for switch management interface.
Address Resolution Protocol configuration
Address Resolution Protocol (ARP) is the TCP/IP protocol that resides within the Internet layer. ARP resolves a
physical address from an IP address. ARP queries machines on the local network for their physical addresses.
ARP also maintains IP to physical address pairs in its cache memory. In any IP communication, the ARP cache is
consulted to see if the IP address of the computer or the router is present in the ARP cache. Then the
corresponding physical address is used to send a packet.
The following table describes the ARP Configuration commands.
Table 103 ARP Configuration commands
Command
Description
ip arp rearp <2-120>
Defines re-ARP period in minutes. You can set this duration between 2 and
120 minutes. The default is 10 minutes.
Command mode: Global configuration
show ip arp
Displays the current ARP configurations.
Command mode: All except User EXEC