3Com Router 3000 Ethernet FamilyConfiguration Guide Chapter 2 Dynamic Routing Standby3Com Corporation2-6[3Com] x25 switch svc 10 interface Serial 1/0/03) Configure RouterC# Configure a dialer ACL.[3Com] dialer-rule 1 ip permit# Configure dial parameters on the BRI 0/0/0 interface.[3Com] interface bri 0/0/0[3Com-Bri0/0/0] ip address 20.0.0.2 255.0.0.0[3Com-Bri0/0/0] dialer enable-circular[3Com-Bri0/0/0] dialer-group 1# Configure Serial1/0/0 and encapsulate it with X.25.[3Com-Bri10/0/0] interface serial 1/0/0[3Com-Serial1/0/0] link-protocol x25 dte ietf[3Com-Serial1/0/0] x25 x121-address 20[3Com-Serial1/0/0] x25 map ip 10.0.0.1 x121-address 10 broadcast[3Com-Serial1/0/0] ip address 10.0.0.2 255.0.0.0# Configure a loopback interface.[3Com-Serial1/0/0] interface loopback1[3Com-Loopback1] ip address 30.0.0.1 255.0.0.0[3Com-Loopback1] quit# Enable RIP.[3Com] rip[3Com-rip] network 10.0.0.0[3Com-rip] network 20.0.0.0[3Com-rip] network 30.0.0.02.3.2 Dynamic Routing Standby Configuration Example III. Network requirementsRouterA and RouterB are connected using serial interfaces on the segment 10.0.0.0and are connected to an ISDN switched network using ISDN BRI interfaces on thesegment 20.0.0.0. They can call each other.In dynamic routing standby, RouterA is working as the control device to monitor thesegment loopback0:40.0.0.0 on RouterB.
