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8: Device Ports
SLC™ 8000 Advanced Console Manager User Guide 154
and if the remote peer requests PAP or CHAP authentication, provides the Dial-out Login and
Dial-out Password as authentication tokens. Once authenticated, a PPP session will be
established using either negotiated IP addresses or specific IP addresses (determined by the
Negotiate IP Address setting). The PPP connection will stay active until no IP traffic is sent for
Modem Timeout seconds. Once the timeout has expired, the PPP connection will be terminated
and will not be reestablished for at least Restart Delay seconds.
Dial-in & Dial-on-demand
A modem is configured to be in two modes: answering incoming calls to establish a PPP
connection, and automatically dialing out to establish a PPP connection when IP traffic destined
for a remote network needs to be sent. When either event occurs (an incoming call or IP traffic
destined for the remote network), the other mode will be disabled.
For Dial-in, the user will be authenticated via PAP or CHAP (determined by the
Authentication setting for the modem). For PAP, the Local/Remote User list will be used to
authenticate the login and password sent by the PPP peer, and the site list will be searched for
a site that (a) the Login/CHAP Host matches the name that was authenticated, (b)
Authentication is set to PAP, and (c) the Port is set to None or matches the port the modem
is on. For CHAP, the site list will be searched for a site that (a) the Login/CHAP Host and
CHAP Secret match the name and secret sent in the CHAP Challenge response by the PPP
peer, (b) Authentication is set to CHAP, and (c) the Port is set to None or matches the port
the modem is on. If the remote peer requests PAP or CHAP authentication from the SLC
advanced console manager, the Remote/Dial-out Login and Remote/Dial-out Password
configured for the modem (not the site) will be provided as authentication tokens.
If a matching site is found, its Negotiate IP Address, NAT, and Modem Timeout parameters
will be used for the rest of the dial-in connection instead of the parameters configured for the
modem. Once authenticated, a PPP session will be established using either negotiated IP
addresses or specific IP addresses (determined by the Negotiate IP Address setting). The
PPP connection will stay active until no IP traffic is sent for Modem Timeout seconds.
For Dial-on-Demand, the SLC unit searches the site list for all sites that (a) have a Dial-out
Number defined, (b) have a Static Route IP Address, Static Route Subnet Mask and Static
Route Gateway defined, and (c) the Port matches the port the modem is on. A dial-on-
demand connection will be started for each, waiting for IP traffic destined for a remote
network. When IP traffic needs to be sent, the SLC 8000 advanced console manager dials the
appropriate Dial-out Number for the site, and if the remote peer requests PAP or CHAP
authentication, provides the Dial-out Login and Dial-out Password as authentication tokens.
Once authenticated, a PPP session will be established using either negotiated IP addresses
or specific IP addresses (determined by the Negotiate IP Address setting). The PPP
connection will stay active until no IP traffic is sent for Modem Timeout seconds. Once the
timeout has expired, the PPP connection will be terminated and will not be reestablished for at
least Restart Delay seconds.
Dial-back & Dial-on-demand
A modem is configured to be in two modes: answering incoming calls to initiate a dial-back, and
automatically dialing out to establish a PPP connection when IP traffic destined for a remote
network needs to be sent. When either event occurs (an incoming call or IP traffic destined for the
remote network), the other mode will be disabled.
For Dial-back, the user will be authenticated via PAP or CHAP (determined by the
Authentication setting for the modem). For PAP, the Local/Remote User list will be used to
authenticate the login and password sent by the PPP peer, and the site list will be searched for
a site that (a) the Login/CHAP Host matches the name that was authenticated, (b)
Authentication is set to PAP, and (c) the Port is set to None or matches the port the modem