Lancom Systems 821 User Manual
Page 44
LANCOM 821 ADSL/ISDN – LANCOM 1621 ADSL/ISDN – LANCOM 1711 VPN
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Chapter 4: Setting up Internet access
44
EN
address), default gateway and DNS server. These values can be
received automatically from providers that support DHCP.
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DSL
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Protocol: PPPoE, PPTP or Plain Ethernet (IPoE)
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Additionally for Plain Ethernet: own public IP address with netmask
(not to be confused with the private LAN IP address), default gateway
and DNS server. These values can be received automatically from pro-
viders that support DHCP.
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User name and password
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ISDN – dial-in number
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User name and password
Additional connection options
You may also enable or disable further options in the wizard, depending on
whether or not they are supported by your Internet provider:
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Time-based billing or flat rate – select the accounting model used by your
Internet provider.
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When using time-based billing, you can set the LANCOM to automat-
ically close existing connections if no data has been transferred within
a specified time (the so-called idle time).
In addition, you can activate a line monitor that identifies inactive
remote stations faster and therefore can close the connection before
the idle time has elapsed.
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Active line monitoring can also be used with flat rate billing to con-
tinuously check the function of the remote station.
You also have the option of keeping flat rate connections alive if
required. Dropped connections are then automatically re-established.
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Dynamic channel bundling (ISDN only)
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if required, the second ISDN B-channel will automatically be bundled
to the connection. This doubles the available bandwidth; it may also
double your connect charges as well, however. What's more, your
ISDN connection will be busy in this case, with all other incoming and
outgoing calls being rejected.
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Data compression
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this permits an additional increase in data throughput.