When the primary is up the route table shows:
192.1.1.0/24 is variably subnetted, 2 subnets, 2 masks
S 192.1.1.0/24 is directly connected, Serial0/0:1
C 192.1.1.25/32 is directly connected, Serial0/0:1
When the primary goes down it shows:
192.1.1.0/24 is variably subnetted, 2 subnets, 2 masks
S 192.1.1.0/24 is directly connected, BRI1/1
C 192.1.1.25/32 is directly connected, BRI1/1
This is why I don't understand why it will not work !!
Thanks,
Derek
wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> What does your route table show on both routers?
>
> Mark
>
> > I have a 3640 router (Pri rate Interface / backup ISDN interfaces) that
is
> > not performing as I thought it would...One of the channelised interfaces
> > went down yesterday and the backup ISDN for that line kicked in, however
I
> > could no longer ping into the remote site once the backup came up - The
> > remote router is a 1720.
> > I could ping from router to router (In both directions).
> > I could not ping from a client in Site A to router in Site B, or beyond.
> > I could not ping from a client in Site B to router in Site A, or beyond.
> >
> > Below is part of the config:
> >
> > SITE A - 3640
> >
> > interface FastEthernet0/0
> > ip address 192.168.25.25 255.255.255.0
> >
> > duplex auto
> >
> > speed 100
> >
> > no cdp enable
> >
> >
> > interface Serial0/0:1
> >
> > bandwidth 128
> >
> > backup delay 20 20
> >
> > backup interface BRI1/1
> >
> > ip unnumbered FastEthernet0/0
> >
> > no ip directed-broadcast
> >
> > encapsulation ppp
> >
> > fair-queue 64 256 0
> >
> > no cdp enable
> >
> >
> >
> > interface BRI1/1
> >
> > ip unnumbered FastEthernet0/0
> >
> > no ip directed-broadcast
> >
> > encapsulation ppp
> >
> > dialer idle-timeout 300
> >
> > dialer string XXXXXXXX
> >
> > dialer hold-queue 20
> >
> > dialer-group 1
> >
> > isdn switch-type basic-net3
> >
> > no cdp enable
> >
> > ppp authentication chap
> >
> >
> >
> > ip route 192.1.1.0 255.255.255.0 Serial0/0:1
> >
> > ip route 192.1.1.0 255.255.255.0 BRI1/1 50
> >
> >
> >
> > access-list 100 permit ip any any
> >
> > access-list 100 permit icmp any any
> >
> > dialer-list 1 protocol ip list 100
> >
> >
> >
> > SITE B - 1720
> >
> >
> >
> > interface BRI0
> > ip unnumbered FastEthernet0
> > encapsulation ppp
> > dialer idle-timeout 300
> > dialer string XXXXXXX
> >
> > dialer hold-queue 50
> > dialer-group 1
> > isdn switch-type basic-net3
> > ppp authentication chap
> > !
> > interface FastEthernet0
> > ip address 192.1.1.25 255.255.255.0
> > speed auto
> > !
> > interface Serial0
> > bandwidth 128
> > backup delay 20 20
> > backup interface BRI0
> > ip unnumbered FastEthernet0
> > !
> > ip classless
> > ip route 192.168.25.0 255.255.255.0 Serial0
> > ip route 192.168.25.0 255.255.255.0 BRI0 50
> > no ip http server
> > !
> > access-list 100 permit ip any any
> > access-list 100 permit icmp any any
> > dialer-list 1 protocol ip list 100
> >
> >
> >
> > Can anyone out there see anything obviously wrong with the above
config....
> >
> >
> >
> > Thanks in advance.
> >
> >
> >
> > Derek
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=62582&t=62568
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