D-Link DES-3326 Configuration Manual page 7

by selecting E. You will need to Egress all the port members of this VLAN. In
this example only ports 1 & 2 are members. In the Tagging section, select 'U'
for Untag. This is so because adapters connected to these ports may not be
Tag compliant. Repeat the procedure for the second subnet.
Your now ready to configure you layer 3 routing configuration within the
switch. From the main menu select layer 3 IP Networking, then select 'Setup
IP Interface'
Fig 11. Layer 3 IP Networking
Fig 12. IP Interface Setup