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Menu Descriptions MX410/MX412 System Manual
5-32 PRELIMINARY 61189500L1-1B
PPP BCP/IPCP Menu
Point-to-Point Protocol (PPP) is commonly used for LAN extension and Remote management
connectivity. PPP can use one of two upper layer protocols:
• BCP (Bridge Control Protocol): This protocol routes packets based on MAC addresses and
allows broadcast traffic to be passed over the PPP link(s). This protocol enables true LAN
Extension to be completed. Any device on the LAN can communicate with any other device
with the least amount of configuration by the user.
• IPCP (IP Control Protocol): This protocol is used to for the user to assign an IP address to
each interface of the MX410/MX412. This enables dynamic routing of packets based on
the IP address and prohibits broadcast traffic from being passed over the PPP link(s). This
protocol requires more IP knowledge and configuration of each device on the network to
ensure proper IP routing, Default gateway configuration, as well as avoiding conflicts of
networks and DHCP configurations. When IPCP is enabled, RIP v2 is the routing protocol
used by the MX410/MX412.
If using PPP, the T1/FT1 carrying the PPP link should be configured to ESF and B8ZS.
CAUTION
Only one PPP link can be connected between two devices. If more
than one PPP link is connected between two devices, it creates an
Ethernet LOOP and causes a Packet Storm across the entire
Ethernet network.
The PPP BCP/IPCP menu shown in Figure 5-20 is used to provision the PPP ports.
Figure 5-20. PPP BCP/IPCP Menu
The PPP BCP/IPCP menu options are shown in Table 5-16.
MX410 MM/DD/YY HH:MM
Active Alarms: CRITICAL MAJOR MINOR ID: MX410
PPP BCP/IPCP
1 - BCP/IPCP : BCP
PPP 1
2 - IP Address : unknown
Subnet Mask : unknown
Far End IP Address : unknown
3 - SNMP Link Status Trap : Enabled
LCP Status : Down
BCP/IPCP Status : Down
(T)oggle Between Interfaces
Selection : '?' - System Help Screen