Allied Telesis RAPIER I - Manual (Page 73)

Software Version 2.8.1 73
Software Version 2.8.1
C613-10477-00 REV B
enable ip macdisparity
Syntax ENAble IP MACdisparity
Description This new command allows you to add static ARP entries with multicast MAC
addresses, and allows packets with conflicting IP and MAC addresses to pass
through the router or switch. Normally these packets are discarded as being
invalid by the router or switch.
Conflicting IP and MAC addresses include:
■ A multicast IP address with a unicast MAC address
■ A unicast IP address with a multicast MAC address
This feature is disabled by default. When disabled, you can only add ARP
entries with unicast MAC addresses, and the router or switch discards packets
with conflicting IP and MAC addresses.
Switches further downstream may not accept unicast IP addresses with
multicast MAC addresses.
Example To allow static entries with multicast MAC addresses to be configured on the
router or switch, use the command:
ena ip mac
reset ip counter
Syntax RESET IP
COUnter={ALL|ARP|CAChe|ICmp|INTerface|IP|MULticast|ROUt
e|SNmp|UDP}
Description This command sets IP counters to zero. The counter parameter specifies
particular counters depending on the option, and all resets all of them. You can
now specify cache as an option for the counter parameter.
Example To reset the IP route counters to zero, use the command:
reset ip cou=rou
set ip arpwaittimeout
Syntax SET IP ARPWaittimeout=1..30
Description This new command sets the amount of time the router or switch waits for a
response after it sends an ARP request message.
The easiest way to test a changed wait timeout period is to ping an unavailable
device. The timeout determines the delay between pinging an IP address and
receiving the reply that the device is unreachable.
The arpwaittimeout parameter specifies the number of seconds that the router
or switch waits for a response to an ARP request message. If it does not receive
a reply after that number of seconds, it notifies the sending device that the