Reference Guide

Configuring Layer 3 (Interface) Mode
To assign an IP address, use the following commands.
• Enable the interface.
INTERFACE mode
no shutdown
• Configure a primary IP address and mask on the interface.
INTERFACE mode
ip address ip-address mask [secondary]
The ip-address must be in dotted-decimal format (A.B.C.D) and the mask must be in slash format (/xx).
Add the keyword secondary if the IP address is the interface’s backup IP address.
You can only configure one primary IP address per interface. You can configure up to 255 secondary IP addresses on a
single interface.
To view all interfaces to see with an IP address assigned, use the show ip interfaces brief command in
EXEC mode as shown in View Basic Interface Information.
To view IP information on an interface in Layer 3 mode, use the show ip interface command in EXEC Privilege
mode.
Example of the show ip interface Command
FTOS>show ip int vlan 58
Vlan 58 is up, line protocol is up
Internet address is 1.1.49.1/24
Broadcast address is 1.1.49.255
Address determined by config file
MTU is 1554 bytes
Inbound access list is not set
Proxy ARP is enabled
Split Horizon is enabled
Poison Reverse is disabled
ICMP redirects are not sent
ICMP unreachables are not sent
Egress Interface Selection (EIS)
Egress Interface Selection (EIS) is available on the Z9000 platform.
EIS allows you to isolate the management and front-end port domains by preventing switch-initiated traffic routing
between the two domains. This feature provides additional security by preventing flooding attacks on front-end ports.
The following protocols support EIS: DNS, FTP, NTP, RADIUS, sFlow, SNMP, SSH, Syslog, TACACS, Telnet, and TFTP.
This feature does not support sFlow on stacked units.
When you enable this feature, all management routes (connected, static, and default) are copied to the management EIS
routing table. Use the management route command to add new management routes to the default and EIS routing
tables. Use the show ip management-eis-route command to view the EIS routes.
Important Points to Remember
• Deleting a management route removes the route from both the EIS routing table and the default routing table.
• If the management port is down or route lookup fails in the management EIS routing table, the outgoing interface
is selected based on route lookup from the default routing table.
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