With the new network infrastructure we have established two environments:

• The internal VLANs of the National Laboratory of Frascati, protected from internet through firewall.

On these VLANs is possible to request:
• An IP address on the internal network , by compiling the form
• The abilitation to use DHCP , by filling in a Trouble Ticket. This service automatically supplies all the network setting .  For security reasons, on the Laboratory's VLANs the DHCP supplies the network information only to hosts who know the IP address and MAC address
• LAN external connection, called VLAN 131, is set outside the firewall. This one permits the guest to connect to the global internet by using:
• Wireless
• Network Cable, in the bulding where the VMPS services is set
On this VLAN 131 is active a DHCP services that supplies all the network information to the guests without  the computing service knowing the MAC address.
When the guest uses the external LAN, he can connect to the internal VLANs in this way:
• By SSH axcalc.lnf.infn.it or dxcalc.lnf.infn.it, so it is possible to check your E-Mail account through PINE;
• Print on the internal printer in LPR mode;
  
• Use an AFS Client when you want to transfer files.

VMPS VLAN Management Policy Server





This feature is typical for users that connect to the network by Ethernet Cable. The VMPS service authenticates the hosts by directing them on VLAN through the MAC address or Physical address. When the guest hosts connect to the network by cable and don't trasmit the MAC Address or Physical Address to the computing service they will be directed on the LAN external connection or VLAN 131.
If the guest hosts want to use this feauture, they must follow these conditions:

• Set DHCP on the network property;
• The connection to the network by cable straight through the socket without using HUB.