具体配置:
!
interface serial 0
ip address 131.108.126.1 255.255.255.0
dialer in-band
dialer-group 1
!
dialer map ip 131.108.126.2 55551234
!
dialer idle-timeout 300
dialer backup example
A) 同步V.25bits方式
configuration for routerA:
interface serial 10:0
backup delay 0 10
backup interface serial 110
ip address 16.217.30.2 255.255.255.252
!
interface serial 110
ip address 16.30.16.81 255.255.255.25.0
encapsulation ppp
dialer in-band
dialer string 8292
dialer-group 1
pulse-time 1
!
dilar-list 1 protocol ip permit
B) 辅助口作拨号备份
configuration for routerA:
chat-script mydial “””atdt 8292” timeout 60 “connect”
!
interface serial 0
backup delay 0 0
backup interface async1
ip address 16.3.1.1 255.255.255.0
encapsulation ppp
!
interface async1
ip address 16.3.2.1 255.255.255.0
encapsulation ppp
keepalive 9
async default routing
async dynamic address
async dynamic routing
async mode dedicated
dialer string 8292
dialer-group 1
!
dialer-list 1 protocol ip permit
!
line aux 0
script dialer mydial
modeinout
transport output none
stopbits 1
flowcontrol hardware
speed 9600
subinterface example (frame realay)
configuration for routerA:
interface serial 0
encapsulation frame-relay
interface serial 0.1 multipoint
ip address 11.10.11.1 255.255.255.0
frame-relay interface-dlci 41
frame-relay interface-dlci42
configuration for routerC:
interface serial 0
encapsulation frame-relay
interface serial 0.1 point-point
ip address 11.10.16.2 255.255.255.0
frame-realy interface-dlci 46
configuration for routerB:
interface serial 0
encapsulation frame-relay
interface serial 0.1 multipoint
ip address 11.10.11.3 255.255.255.0
frame-relay interface-dlci 43
frame-relay interface-dlci 44
!
interface serial 0.2 point-point
ip address 11.10.13.1 255.255.255.0
frame-realy interface-dlci 48
frame relay switching example
configuration for routerA:
frame-relay switching
no ip address
frame-relay encapsulation
frame-relay route 163 tun0 43
frame-relay intf-type dce
!
interface serial0
ip address 131.108.100.1 255.255.255.0
!
interface tu 0
tunnel source serial 1
tunnel destintion 131.108.13.2
configuration for routerB:
frame-relay switching
!
interface serial 0
no Ip address
frame-relay encapsulation
frame-relay router 9 tun0 43
frame-relay interface-type dce
!
int tu 0
tunnel source serial 1
tunnel destination 131.108.100.1