Reference Guide
• 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 and one for the default routing table).
Configuring EIS
EIS is compatible with the following protocols: DNS, FTP, NTP, RADIUS, sFlow, SNMP, SSH, Syslog, TACACS, Telnet, and 
TFTP.
To enable and configure EIS, use the following commands:
1. Enter EIS mode.
CONFIGURATION mode
management egress-interface-selection
2. Configure which applications uses EIS.
EIS mode
application {all | application-type}
NOTE: If you configure SNMP as the management application for EIS and you add a default management 
route, when you perform an SNMP walk and check the debugging logs for the source and destination IPs, the 
SNMP agent uses the destination address of incoming SNMP packets as the source address for outgoing 
SNMP responses for security.
Management Interfaces
The S4820T system supports the Management Ethernet interface as well as the standard interface on any port. You can 
use either method to connect to the system.
Configuring Management Interfaces on the S4820T
The dedicated Management interface provides management access to the system on the S4820T platform.
You can configure this interface with FTOS, but the configuration options on this interface are limited. You cannot 
configure Gateway addresses and IP addresses if it appears in the main routing table of FTOS. In addition, proxy ARP is 
not supported on this interface.
To configure a management interface, use the following commands.
• Enter the slot and the port (0) to configure a Management interface.
CONFIGURATION mode
interface managementethernet interface
The slot range is 0.
• Configure an IP address and mask on a Management interface.
INTERFACE mode
ip address ip-address mask
– ip-address mask: enter an address in dotted-decimal format (A.B.C.D). The mask must be in /prefix 
format (/x).
You can configure two global IPv6 addresses on theS4820T system in EXEC Privilege mode. To view the addresses, use 
the show interface managementethernet command, as shown in the following example. If you try to 
configure a third IPv6 address, an error message displays. If you enable auto-configuration, all IPv6 addresses on that 
management interface are auto-configured. The first IPv6 address that you configure on the management interface is 
the primary address. If deleted, you must re-add it; the secondary address is not promoted.
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