HP 2910al vLAN

[newbieGuy]

Hi,

I am new to networking and need some help with my switch configuration.

All my ports have public facing subnets.

Port 1: this port connect to the data center router.

Port 2: 100.100.101.0/24, with gateway 100.100.101.1 gw, set by the DC.  IP config set directly on the server.

Port 3: 100.100.102.0/24, with gateway 100.100.102.1 gw, set by the DC. IP config set directly on the server.

Port 2, 3 has internet connection if I leave them in default vlan.

If I create a new vlan, and add port 3 to it, it doesn't have access to the internet any more.

Can someone tell me how I can provide the new vlan internet connection?