Specifications

User Interface
102 AVM Access Server – 6 AVM Access Server for Experts
User Interface
Windows user interface (gui.exe)
This is the main user interface to the AVM Access Server. This Win-
dows application provides convenient, wizard-driven configura-
tion of all AVM Access Server settings.
Web user interface (AVM Webserver)
This user interface is accessible through any browser with Java-
script 1.2 capability (such as MS Internet Explorer Version 4.0 or
later). It is accessible from other computers in the network, but
does not offer the full convenience of the Windows application.
The web user interface is provided by the HTTP server “AVM Web-
server”, which listens on TCP port 4000. Authentication is re-
quired for access to the web interface. Every Windows user who is
a member of the local group “Administrators” on the Access Serv-
er computer can access the web interface using the Windows user
name and password.
The web interface makes changes directly in the active settings
database (NTR.MDB). The Windows application creates a copy of
the database, however. For this reason all settings made in the
Windows user interface must be explicitly “applied” before they
take effect. Make sure that both user interfaces are not used
simultaneously! Otherwise inconsistent settings may result.
6.2 Internet Access with the AVM Access Server
The AVM Access Server can provide an Internet connection for the local
network over ISDN and ADSL, or use an existing Internet connection
through a third-party router. For ISDN and ADSL Internet access, the
AVM Access Server provides the following features:
Dial on Demand: Connection set-up and clear-down on demand
IP masquerading (source NAT) for TCP, UDP, GRE, ICMP
Port forwarding (destination NAT) for incoming TCP, UDP, and GRE
packets
DNS forwarding: DNS queries received on configurable IP ad-
dresses (default: 192.168.116.252 and .253) are forwarded to the
DNS server dynamically assigned by the current ISP
IP firewall: incoming and outgoing IP packet filters, stateful in-
spection