[cisco-nas] question regarding TRACK PPPoE/cellular failover

[Steger, Christian]

hi there!


i am right now testing an failover enviroment between PPPoE and an
Cellular
interface.

i can realice it with 2 different dialers (dialer 1 PPPoE speaking PPPoE
on FastEthernet)
and the dialer2 which is bound to the cell interface. i solved the
failover right
now via route tracking, which works fine.. means when the primary
interface fails
the state is down and the cell interface (dialer2) is dialing in. - the
problem is the fallback
to the primary interface. in fact of dialer pesistant definition there
seem not a really
easy way to "force the cell interface to disconnect". 
i have tried the backup interface statement, but my fastethernet will
never go down except my dsl modem
have a problem.

so any idea how to force the switching from cellular back to PPPoE?

c880data-universalk9-mz.124-24.T.bin

track 133 interface Dialer1 ip routing
 delay down 10 up 10

interface FastEthernet4
 description GSHDSL
 no ip address
 duplex auto
 speed auto
 pppoe-client dial-pool-number 1

interface Dialer1
 description PPPoE xDSL Interface
 mtu 1492
 ip address negotiated
 ip nat outside
 ip virtual-reassembly
 encapsulation ppp
 no ip mroute-cache
 load-interval 30
 dialer pool 1
 dialer idle-timeout 0
 dialer persistent
 dialer-group 1
 no cdp enable
 ppp authentication pap callin
 ppp pap sent-username xxx password 0 xxx
 ppp ipcp dns request

interface Cellular0
 description XXX  Backup Interface
 mtu 1460
 no ip address
 ip nat outside
 ip virtual-reassembly
 encapsulation ppp
 load-interval 30
 dialer in-band
 dialer pool-member 233
 dialer-group 1
 async mode interactive

interface Dialer2
 description H3G Backup Interface
 mtu 1460
 ip address negotiated
 ip nat outside
 ip virtual-reassembly
 encapsulation ppp
 load-interval 30
 dialer pool 233
 dialer idle-timeout 0
 dialer string gsm
 dialer persistent
 no cdp enable
 no ppp lcp fast-start
 ppp authentication pap callin
 ppp chap refuse
 ppp pap sent-username xxx password 0 xxx
 ppp ipcp dns request

ip route 0.0.0.0 0.0.0.0 Dialer1 150 name DSL-PPPoE track 133
ip route 0.0.0.0 0.0.0.0 Dialer2 200 name XXX

thanks!

chris


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