Alcatel-Lucent OmniPCX Office Installation Manual page 166

Chapter
6
This section will cover the following items in turn: types of Internet access, Internet services,
Internet services administration systems, hardware and creating the Internet connection.
6.3.1.1 TYPES OF INTERNET ACCESS
6.3.1.1.1 Internet access via Alcatel-Lucent OmniPCX Office Communication Server
Alcatel-Lucent OmniPCX Office Communication Server is used to connect to the Internet by
three types of access.
- ISDN: shared access (T0 or T2) to the Internet, restricted to 2 B channels
- DSL Modem/Cable Modem: connects Alcatel-Lucent OmniPCX Office Communication
Server to the Internet using an external DSL modem/Cable modem connected to the
system using a WAN interface.
- External router: connects Alcatel-Lucent OmniPCX Office Communication Server to the
Internet using an external router connected to the system using a WAN interface.
6.3.1.1.2 Indirect Internet access
LAN server
In "LAN Server" functioning, Alcatel-Lucent OmniPCX Office Communication Server does not
offer Internet access. When connected to the company LAN, the LAN server offers all the
services available on Alcatel-Lucent OmniPCX Office Communication Server, with the
exception of the firewall. Internet access is achieved through another interface.
6.3.2 Services provided
The services available with Alcatel-Lucent OmniPCX Office Communication Server Internet
access depend on the hardware and software keys purchased. The following services are
available:
- Internet Access: the system offers several methods of connection to the Internet Access
Provider (IAP):
• Connection on demand:
• Connection on demand with callback:
• Always-on connection
- Connection protocol:
• ISDN: MPPP, PPP
• DSL Modem/Cable Modem: PPTP, PPPoE or IP over Ethernet
• External router: OmniPCX Office communicates with the IAP via the external router.
The protocol used depends on the external router.
- LAN Functions: DNS server and DHCP integrated, as well as the routing table.
- NAT: address translation is used to internally store private IP addresses and to use only
one public address.
- Protection by integrated firewall: the integrated packet filtering and IP address
translation functions offer protection to the LAN against the Internet.
- Antivirus: The anti-virus software protects the electronic messaging as well as the HTTP
and FTP flows. This software is hosted on a server connected to the same LAN as
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