Digi PortServer II, User Manual

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Page 108 Configuring WAN Connections 90030500B
Incoming WAN Connections
How incoming connections are established
When PortServer II receives an incoming WAN connection request, it verifies that the
user’s login and password are contained in the User Table. If the verification is suc-
cessful, it obtains the index called uid
from the User Table. If it does not find a
match, the request is referred to the RADIUS server, if one is defined.
It then brings up the incoming WAN connection that is specified by the User Table
entry. It uses the remote host’s IP address to create a static Route Table entry, which is
numbered if the local IP address is defined, otherwise unnumbered.
On PPP connections, as part of the IP address negotiation process, the dial-in user may
override the IP address for the port.
Configuring incoming connections
The following procedure gives a typical sequence of commands to modify an incom-
ing connection. Certain of these commands are optional and you can omit them where
indicated, if they are not appropriate to your connection. The order in which the com-
mands are given below are the sequence recommended by Digi International, although
you may be able to enter a different sequence of commands without affecting the
functionality of the connection.
1. Configure the user of the connection, if you have not already done so. See Chap-
ter 4, Basic Configuration for detailed procedures.
2. Configure the PortServer II port that will receive the incoming connection
requests, by entering a command similar to the following:
set ports dev=<value> sess=<number_of_sessions>
range=<value>
dev=<value>
specifies the device type used for the connection; the most fre-
quently used option is
mio
(modem for both input and output).
For example:
set ports dev=mio sess=3 range=5
Note: The
set ports
command includes options that set autoconnection and
modem parameters. For more information on these and additional details
on the options described above, refer to
set ports
in the Command
Reference Guide.