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Serial Port Profiles
PPP Settings
The PPP settings apply when the User Service is set to PPP.
Configure the following parameters:
VJ Compression When enabled, Van Jacobson compression is used on this link. When enabled,
C-SLIP, or compressed SLIP, is used. When disabled, plain SLIP is used. C-
SLIP greatly improves the performance of interactive traffic, such as Telnet or
Rlogin.
If your user is authenticated by the IOLAN, this VJ compression value will be
overridden if you have set a
Framed Compression value for a user. If your
user is authenticated by RADIUS and the RADIUS parameter Framed-
Compression
is set in the RADIUS file, the IOLAN will use the value in the
RADIUS file in preference to the value configured here.
Default: Enabled
IPv4 Local IP
Address
The IPV4 IP address of the IOLAN end of the PPP link. For routing to work,
you must enter a local IP address. Choose an address that is part of the same
network or subnetwork as the remote end; for example, if the remote end is
address 192.101.34.146, your local IP address can be 192.101.34.145. Do not
use the IOLAN’s (main) IP address in this field; if you do so, routing will not
take place correctly.
IPv4 Remote IP
Address
The IPV4 IP address of the remote end of the PPP link. Choose an address that
is part of the same network or subnetwork as the IOLAN. If you set the PPP
parameter IP Address Negotiation to On, the IOLAN will ignore the remote IP
address value you enter here and will allow the remote end to specify its IP
address. If your user is authenticated by RADIUS and the RADIUS parameter
Framed-Address is set in the RADIUS file, the IOLAN will use the value in
the RADIUS file in preference to the value configured here. The exception to
this rule is a
Framed-Address value in the RADIUS file of 255.255.255.254;
this value allows the IOLAN to use the remote IP address value configured
here.
IPv4 Subnet Mask The network subnet mask. For example, 255.255.0.0. If your user is
authenticated by RADIUS and the RADIUS parameter
Framed-Netmask is set
in the RADIUS file, the IOLAN will use the value in the RADIUS file in
preference to the value configured here.
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