D-Link DGS-6600-48T Cli Reference Manual page 227

DGS-6604
Switch# configure terminal
Switch(config)# interface vlan100
Switch(config-if)# ip address 10.108.1.27 255.255.255.0
Switch(config-if)# ip address 192.31.7.17 255.255.255.0 secondary
Switch(config-if)# ip address 192.31.8.17 255.255.255.0 secondary
Switch(config)# end
CLI Reference Guide
Verify the settings by entering the show ip interface command.
ip address
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