Extreme Networks Summit 300-48 - Manual (Page 158)

158 Summit 300-48 Switch Software User Guide
IP Unicast Routing
Verifying the IP Unicast Routing Configuration
Use the show iproute command to display the current configuration of IP unicast routing for the
switch, and for each VLAN. The show iproute command displays the currently configured routes, and
includes how each route was learned.
Additional verification commands include:
• show iparp — Displays the IP ARP table of the system.
• show ipfdb — Displays the hosts that have been transmitting or receiving packets, and the port and
VLAN for each host.
• show ipconfig — Displays configuration information for one or more VLANs.
IP Commands
Table 56 describes the commands used to configure basic IP settings.
Table 56: Basic IP Commands
Command Description
clear iparp {<ipaddress> <mask> | vlan <vlan>} Removes dynamic entries in the IP ARP
table. Permanent IP ARP entries are not
affected.
clear ipfdb {<ipaddress> <netmask> | vlan <name>} Removes the dynamic entries in the IP
forwarding database. If no options are
specified, all dynamic IP FDB entries are
removed.
config bootprelay add <ipaddress> Adds the IP destination address to forward
BOOTP packets.
config bootprelay delete [<ipaddress> | all] Removes one or all IP destination
addresses for forwarding BOOTP packets.
config iparp add <ipaddress> <mac_address> Adds a permanent entry to the ARP table.
Specify the IP address and MAC address
of the entry.
config iparp add proxy <ipaddress> {<mask>}
{<mac_address>} {always} Configures proxy ARP entries. When mask
is not specified, an address with the mask
255.255.255.255 is assumed. When
mac_address is not specified, the MAC
address of the switch is used in the ARP
Response. When
always is specified, the
switch answers ARP Requests without
filtering requests that belong to the same
subnet of the receiving router interface.
config iparp delete <ipaddress> Deletes an entry from the ARP table.
Specify the IP address of the entry.
config iparp delete proxy [<ipaddress> {<mask>} |
all] Deletes one or all proxy ARP entries.
config iparp timeout <minutes> Configures the IP ARP timeout period. The
default setting is 20 minutes. A setting of 0
disables ARP aging. The maximum aging
time is 32,767 minutes.