Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.14.1.0 - Page 404
Configuring Layer 3 (Interface) Mode, Egress Interface Selection (EIS), Important Points to Remember
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To determine the configuration of an interface, use the show config command in INTERFACE mode or the various show interface commands in EXEC mode. 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. Example of the show ip interface Command 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. DellEMC>show ip interface 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 IP unicast RPF check is not supported Egress Interface Selection (EIS) 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. 404 Interfaces
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