3048 and 3348 remote management

If you can manage the switch via the web interface on you LAN, the only configuration necessary on the switch would be to verify that the gateway is configured properly.

If you are attempting to manage the switch though a firewall, you would need either a static translation and access-list or you would need to configure the firewall for "port forwarding". Port forwarding allows you to specify that all inbound traffic with a particular destination port number (i.e. TCP port 80 for http traffic) will be sent to a specific ip address on the inside LAN.

when i plug into the switch on port (48 which is the only port that can get to the web interface) do this port need to be in a VLAN if so how do i configure that? when i plug into a Vlan i can get on the internet but not to that web interface of the switch? this is why im so confused in whats the difference?

Noloses

The 3348 can be configured with up to 4 IP addresses. An IP address can be configured on a VLAN or a physical port. However, if an IP address is bound to a physical port, only a system connected to that port will be able to manage the switch. It is recommended to bind the IP address to a VLAN rather than a physical port. When you configure an IP address on a VLAN, all systems that are members of that VLAN would be able to manage the switch.

The 3024/3048 family can only have one management IP address. It is bound to VLAN 1 and cannot be moved to another VLAN. Any system that needs to manage the switch would need to be a member of VLAN 1.

ok, so how do i manage over the internet? i only have 1 ip add on each switch with port forwarding done in my router to that ip, i cannot connect over the internet. how do i connect to the switch over the internet?

As long as the management VLAN is the same VLAN as the connection to your router and port forwarding is configured properly, you should be able to manage the switch over the internet. You would need to be sure the gateway on the switch is configured to point to your router.

If the switch is configured with an IP address of 192.168.10.2/24, you would configure port forwarding to send all traffic with destination TCP port 80 to 192.168.10.2. To connect to the switch over the internet, you would simply send an http request for your public address (address assigned by your ISP) on port 80 and the router should forward the traffic to the switch.