From: Erick B. (erickbe@xxxxxxxxx)
Date: Mon Feb 26 2001 - 11:30:59 GMT-3
R3 doesn't have 'broadcast' in the dialer map
statement. This is needed for routing protocols that
use broadcast/multicast.
ip ospf demand-circuit doesn't keep the ISDN circuit
quiet if there hasn't been a neighbor adj formed. The
router will attempt to bring up the ISDN/DDR circuit
depending on whats interesting traffic. Once the
ISDN/DDR circuit comes up and a OSPF neighbor adj is
formed and OSPF see's its flagged as a demand circuit
then it'll remain quiet until a better cost route
comes into play or the routers lose their OSPF
neighbor adj.
Erick
--- "Balcerzak, Bart (Lucent)"
<bart.balcerzak-eds@eds.com> wrote:
> Only use the ospf demand circuit command on one end
> not both....
>
> -----Original Message-----
> From: chunyuchen [mailto:chunyuchen@kimo.com.tw]
> Sent: Monday, February 26, 2001 7:28 AM
> To: CCIE Group Study
> Subject: OSPF demand Circuit Problem
>
>
> Dear all,
> Who can help me to fix OSPF demand circuit problem.
> It is alway connect to each other via isdn.
> if the idle-time-out is expire.
> It will re-connection to each other.
> My configuration as following,
>
> R3#show ip ospf neighbor
>
> Neighbor ID Pri State Dead Time
> Address =
> Interface
> 6.6.6.6 1 INIT/ - 00:00:36
> 33.33.33.6 BRI0
>
> R6#show ip ospf neighbor
> Not thing.
>
> R6
> interface BRI0
> ip address 33.33.33.6 255.255.255.0
> no ip directed-broadcast
> encapsulation ppp
> ip ospf demand-circuit
> dialer idle-timeout 180
> dialer map ip 33.33.33.3 name r3 broadcast 12711291
> dialer-group 1
> ppp authentication pap
> !
> router ospf 1
> network 33.33.33.0 0.0.0.255 area 0
> network 6.6.6.0 0.0.0.255 area 0
> !
> ip classless
>
> R3:
> interface BRI0
> =20
> ip address 33.33.33.3 255.255.255.0
> no ip directed-broadcast
> encapsulation ppp
> ip ospf demand-circuit
> dialer idle-timeout 180
> dialer map ip 33.33.33.6 name r6 12711323
> dialer load-threshold 128 outbound
> dialer-group 1
> ppp authentication pap
> !
> router eigrp 1
> variance 18
> network 10.0.0.0
> network 3.0.0.0
> no auto-summary
> !
> router ospf 1
> network 33.33.33.0 0.0.0.255 area 0
> network 3.3.3.0 0.0.0.255 area 0
>
>
> Thanks
> Regards
> Jerry
>
>
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