• Enable the interface.INTERFACE modeno shutdown• Configure a primary IP address and mask on the interface.INTERFACE modeip 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.Example of the show ip interface CommandYou 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 inView Basic Interface Information.To view IP information on an interface in Layer 3 mode, use the show ip interface command in EXEC Privilege mode.Dell>show ip interface vlan 58Vlan 58 is up, line protocol is upInternet address is 1.1.49.1/24Broadcast address is 1.1.49.255Address determined by config fileMTU is 1554 bytesInbound access list is not setProxy ARP is enabledSplit Horizon is enabledPoison Reverse is disabledICMP redirects are not sentICMP unreachables are not sentIP unicast RPF check is not supportedEgress Interface Selection (EIS)EIS allows you to isolate the management and front-end port domains by preventing switch-initiated traffic routing between the twodomains. 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. Usethe management route command to add new management routes to the default and EIS routing tables. Use the show ipmanagement-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 onroute lookup from the default routing table.• If a route in the EIS table conflicts with a front-end port route, the front-end port route has precedence.• Due to protocol, ARP packets received through the management port create two ARP entries (one for the lookup in the EIS table andone for the default routing table).Configuring EISEIS is compatible with the following protocols: DNS, FTP, NTP, RADIUS, sFlow, SNMP, SSH, Syslog, TACACS, Telnet, and TFTP.Interfaces 379
