Using One Dynamic Route Group To Monitor Multiple Network Segments - 3Com MSR 50 Series Configuration Manual

520 C 27: D
HAPTER YNAMIC
Using One Dynamic
Route Group to Monitor
Multiple Network
Segments
R B C
OUTE ACKUP ONFIGURATION
[RouterB-Dialer0] ip address 20.0.0.2 24
[RouterB-Dialer0] dialer user usera
[RouterB-Dialer0] dialer-group 1
[RouterB-Dialer0] dialer bundle 1
[RouterB-Dialer0] dialer number 8810010
[RouterB-Dialer0] ppp authentication-mode pap
[RouterB-Dialer0] ppp pap local-user userb password simple userb
[RouterB-Dialer0] quit
# Configure dialup parameters for BRI 3/0.
[RouterB] interface bri 3/0
[RouterB-Bri3/0] dialer bundle-member 1
[RouterB-Bri3/0] ppp authentication-mode pap
[RouterB-Bri3/0] ppp pap local-user userb password simple userb
[RouterB-Bri3/0] quit
# Configure Serial 2/0 and enable X.25 on it.
[RouterB] interface serial 2/0
[RouterB-Serial2/0] link-protocol x25 dte ietf
[RouterB-Serial2/0] x25 x121-address 20
[RouterB-Serial2/0] x25 map ip 10.0.0.1 x121-address 10 broadcast
[RouterB-Serial2/0] ip address 10.0.0.2 8
[RouterB-Serial2/0] quit
# Configure the interface loopback 1.
[RouterB] interface loopback 1
[RouterB-Loopback1] ip address 30.0.0.1 32
[RouterB-Loopback1] quit
# Configure the dynamic routing protocol RIP.
[RouterB] rip
[RouterB-rip-1] network 10.0.0.0
[RouterB-rip-1] network 20.0.0.0
[RouterB-rip-1] network 30.0.0.0
[RouterB-rip-1] import-route direct
Network requirements
Router A and Router B are connected through a FR network, and they are
■
connected to each other through an ISDN switched network at the same time.
Router A and Router B can dial each other. The telephone number of Router A
is 660330, and that of Router B is 660220.
As the master device of the dynamic route backup function, Router A monitors
■
the three network segments 10.0.0.1/8, 11.0.0.1/8, and 12.0.0.1/8 on Router
B.
Normally, the FR link functions as the primary link between Router A and
■
Router B. When there is no valid route to any of the three network segments
(that is, the logical relationship among the three network segments is "AND"),
Router A will activate the backup link.