Nokia M11 T66220, User Manual

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Nokia M11 User’s Manual
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Copyright Nokia Networks Oy C33833001SE_00 6-8
The manner in which each peer will authenticate the other is negotiated
during the link configuration phase, when each peer specifies whether
it requires authentication and, if it does, the authentication method it
uses. If a link peer requires authentication, the other peer must submit
its name and authentication information before the link can proceed. If
the peer fails to send valid authentication information, the
authenticator terminates the PPP link.
The authentication method used by one peer can be different from the
authentication method used by the other peer. For example, a peer at
one end of a link may require authentication while the other end of the
link may not. Similarly, one end of a link may use PAP to authenticate
peers while the other end uses CHAP.
6.8.2 Network configuration
M11 supports IPCP and BNCP network control protocols. IPCP
network control protocol is used to exchange the IP configuration
parameters. Typically IP addresses are exchanged. M11 is also able to
retrieve the IP addresses from the far end or allocate an IP address to
the far end. M11 also supports IPCP extension for DNS allocation
(RFC 1877) that is used to configure DNS servers dynamically.
BNCP is used to establish the bridged PPP connection.
6.9 Dynamic Host Configuration Protocol (DHCP)
The Dynamic Host Configuration Protocol allows one host on a
TCP/IP network to provide configuration information to other hosts on
that network. DHCP is built on a client-server model, where
designated DHCP server hosts allocate network addresses and deliver
configuration parameters to dynamically configured hosts. When
DHCP is enabled, the DHCP client requests configuration
information, such as an IP address and network information, from a
DHCP server each time it is restarted. The DHCP server responds to
the request by sending the client an IP address and information about
the network, such as the network’s subnet mask, broadcast address,
name service information, authentication information, and routing
information.