User`s guide

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The following three radio buttons control how the IP address for the router is assigned.
Allow the remote device to assign a local IP address to this router
When this radio button is selected, the remote peer will assign this PPP interface an IP
address.
Try to negotiate a.b.c.d as the local IP address for this router
If it would be useful, but not essential, to have a predefined IP address for the interface, the
second radio button should be selected and the desired IP address entered into the text box
to the right.
Use a.b.c.d as the local IP address for this router
If it is essential that the PPP interface has a specific IP address, this radio button should be
selected and the IP address entered into the text box.
Use mask a.b.c.d for this interface
The default value in this text box will normally work and should only be changed if it is
known that the default is not appropriate. Since PPP is a peer-to-peer protocol this value
makes sense in most situations.
Use the following DNS servers if not negotiated
Primary DNS server
The value in this text box is the IP address of the primary DNS server to use if a DNS
server is not assigned as part of the PPP negotiation and connection process. It is fairly
common practice for the DNS server to be assigned automatically by the ISP when
making a connection.
Secondary DNS server
The value in this text box specifies the IP address of the secondary DNS server to use if
one is not automatically assigned by the remote peer.
Attempt to assign the following IP configuration to remote devices
When checked, this check box will reveal the following four configuration parameters which
control how the PPP instance assigns an IP address to a connecting remote peer. The
primary and secondary DNS server addresses will also be sent to the remote peer
Assign remote IP addresses from a.b.c.d to a.b.c.d
The IP addresses in these text boxes define the pool of IP addresses to assign to remote
peers during the IP protocol configuration phase of the PPP negotiation process.
Primary DNS server
The value in this text box is the IP address of the primary DNS server that the remote
peer should use when making DNS requests over the link.
Secondary DNS server
The value in this text box is the IP address of the secondary DNS server that the remote
peer should use when making DNS requests, should the primary server be unavailable.
Allow the PPP interface to answer incoming calls
When checked, this checkbox will cause the PPP instance to answer an incoming call.
Only allow calling numbers ending with n
When set to answer calls, the value in this textbox provides a filter for ISDN sub-
addresses. This value is blank by default but when the PPP instance is set to answer calls,
only numbers having trailing digits that match the sub-address value in this test will be
answered. So for example, if this value is set to “123”, only calls from numbers with
trailing digits that match this value will be answered. For example 01942 605123