Configuring network protocol parameters

Using the PPP Incoming Connection Wizard, you can enter the following information to define how the IP network protocol will be configured for the PPP link:

Local address assigned by

Select Remote if the remote user assigns the IP address of your end of the link each time it is established. Select Local if the IP address for your end of the PPP link is defined locally.

Local IP address/host name

The IP address of the local end of the PPP link or a host name that is resolvable to an IP address.

Remote address assigned by

Select Remote if the remote user assigns the IP address of the remote end of the link each time it is established. Select Local if the IP address for the service provider's end of the PPP link is defined locally.

Remote IP address/host name

The IP address of the remote end of the PPP link or a host name that is resolvable to an IP address.

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WARNING: Do not assign the same remote address to different incoming users if it is possible for them to be accessing the remote access server at the same time. If necessary, you can use the PPP Manager to configure an incoming bundle to use dynamically assigned IP addresses obtained from a pool of IP addresses maintained by the Address Allocation Server. You can configure dynamic IP address assignment via the IP Protocol button in the incoming bundle's ``Network protocol options''.

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Use as default route

Select Yes if a default route to outside networks should be established in the routing table via the new PPP interface when the link is brought up. The route will also be deleted when the link is taken down again. Select No if the local host already has a network interface and you do not want this to stop being the default route.

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NOTE: A remote access server will typically be configured as the gateway to local networks or the Internet. For this reason, this option should usually be set to No.

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Local host acts as gateway

Select Yes if the host at your end of the PPP link will act as a router for packets between the local network and the remote end of the link. Select No if you do not want the local machine to act as a router or it is not connected to a local network.

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NOTE: A remote access server will typically be configured as the gateway to local networks or the Internet. For this reason, this option should usually be set to Yes.

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Act as proxy for ARP

Select Yes if the remote access server will act as a proxy for Address Resolution Protocol (ARP) requests on local networks on behalf of the host at the remote end of the link. This is necessary if the IP address and network mask of the remote end of the link defines it to be on a local network to which the remote access server is directly connected. Because the PPP interface of the machine at the remote end of the link does not have a hardware (MAC) address, it cannot answer ARP requests for this address from machines on the local network. The proxy machine must instead answer all ARP requests on behalf of the remote machine with its own MAC address. It examines the destination IP address of all network packets that are sent to its MAC address. If a packet's destination IP address is that of the machine at the remote end of a PPP link, it forwards the packet on the appropriate PPP interface.

Select No if the IP address and network mask of the host at the remote end of the link defines it as not being on a local network.