From: zheng jiang gu (zjgu@xxxxxxxxxx)
Date: Mon Dec 04 2000 - 00:55:46 GMT-3
I agree with tony! but Tony ,if the problem exist ,it should always hold up the
isdn ,
not as James said.
----- Original Message -----
From: Tony Olzak <aolzak@buckeye-express.com>
To: James Chen <jr_chen@ringline.com.tw>; CCIE Group Study (E-mail) <ccielab@gr
oupstudy.com>; 林金生 <thomas@lantel.com.tw>
Sent: Monday, December 04, 2000 12:33 AM
Subject: Re: [A]OSPf Demand-Circuit over ISDN DDR
When you redistribute RIP into OSPF, use a route map to keep the OSPF routes
from coming back into OSPF. That will fix your problem WITHOUT using "no
peer"
Tony
----- Original Message -----
From: "James Chen" <jr_chen@ringline.com.tw>
To: "CCIE Group Study (E-mail)" <ccielab@groupstudy.com>; "林金生"
<thomas@lantel.com.tw>
Sent: Sunday, December 03, 2000 3:06 AM
Subject: [A]OSPf Demand-Circuit over ISDN DDR
> Hello, everybody:
>
> Finally, I got the config to work perfectly I think.
> The scenario is R5 connect to R3 with ISDN, and only R5 will initial the
> call to R3.
> Configuration is so simple, my friend who is CCIE tell me that make it
> simple,
> don't think and do it too complex.
> Do I decide to do it from isdn bri call setup and then add neighbor
> relation and demand
> circuit , finally to do the backbone configuartion, instead that config
> backbone and then
> backup by isdn .
>
> 1. I config ip , ppp, auth, dialer map, dialer-group, ping each other,
> it's ok.
> 2. add router ospf , put network, add ip ospf demand-circuit , watch the
> neighbor
> relation become " FULL/- ", and the dead time become " -" at last.
> And after the idle-timeout , the isdn disconnectted. Ya ! it's ok.
> 3.add all configuration of other backbone , it's still work properly.
> 4.save config and reload all routers, ya ! isdn will be disconnectted
> after idle-timeout.
> 5.check if the backup is ok, shutdown the fa0/0 in R3 or R5, ya ! it
> seems to be work.
> 6.After the idle-timeout, the isdn drop . however, one LSA generate and
> trigger the isdn
> up again, after 120s idle-timeout, isdn disconnected and pick up
> again and again.
>
> At first, I doublt that maybe I should use dialer interface to try it .
> Ya, it work properly, but has the same condition as above.
> I read the groupstudy email list , it said that use "no peer
> neighbor-route".
> But why should the peer neighbor-route be add ?
>
> I use debug ip ospf lsa-generation to watch what LSA is be generatted !
> Yeh, there is an OSPF external Type 5 route be generatted when the isdn
> grop.
> I think this is because the rip will advertise the bri network into
> OSPF.
> The route entry that RIP inject is exactly the host-route 137.1.35.2/32,
>
> so if I use "no peer neighbor-route" , it will not generate the route "
> 137.1.35.2/32 "
> and will not be the entry of RIP. So that when the isdn drop, the RIP
> will not
> adverise the entry into OSPF, so that " THE NETWORK TOPOLOGY WILL NOT
> BE CHANGED", the isdn will not be trigger up.
>
> If any other method can make the same function of "no peer
> neighbor-route",
> please let me know, thanks !
>
> I begin to believe that all the solution of CCIE Lab should be nature
> and simple.
> Don't think too much, right ?
>
> James
>
> The exactly config I have is as following:
> --------------------------------------------------------------------------
--------------
>
> Dialer Profile
> ----------------
> [R3]
> hostname R3
> !
> enable password cisco
> !
> username R5 password 0 cisco
> !
> ip subnet-zero
> no ip domain-lookup
> !
> isdn switch-type basic-5ess
> !
> interface Loopback0
> ip address 137.1.3.3 255.255.255.0
> no ip directed-broadcast
> !
> interface FastEthernet0/0
> ip address 137.1.63.3 255.255.255.0
> no ip directed-broadcast
> duplex auto
> speed auto
> !
> interface Serial0/0
> ip address 137.1.254.3 255.255.255.248
> no ip directed-broadcast
> encapsulation frame-relay
> ip ospf network point-to-multipoint
> no ip mroute-cache
> no fair-queue
> frame-relay map ip 137.1.254.2 101 broadcast
> frame-relay map ip 137.1.254.4 100 broadcast
> frame-relay lmi-type ansi
> !
> interface BRI0/0
> no ip address
> no ip directed-broadcast
> encapsulation ppp
> dialer pool-member 1
> isdn switch-type basic-5ess
> ppp authentication pap
> ppp pap sent-username R3 password 7 1414110209
> !
> interface Dialer1
> ip address 137.1.35.1 255.255.255.252
> no ip directed-broadcast
> encapsulation ppp
> dialer remote-name R5
> dialer pool 1
> dialer-group 1
> !
> router ospf 1
> network 137.1.3.3 0.0.0.0 area 3
> network 137.1.35.1 0.0.0.0 area 3
> network 137.1.63.3 0.0.0.0 area 3
> network 137.1.254.3 0.0.0.0 area 0
> !
> ip classless
> !
> access-list 100 permit ip host 137.1.35.1 any log
> dialer-list 1 protocol ip permit
> =======================================
> [R5]
> hostname R5
> !
> enable password cisco
> !
> username R3 password 0 ccie
> !
> ip subnet-zero
> no ip domain-lookup
> !
> isdn switch-type basic-5ess
> !
> interface Loopback0
> ip address 137.1.5.5 255.255.255.0
> no ip directed-broadcast
> !
> interface FastEthernet0/0
> ip address 137.1.65.5 255.255.255.0
> no ip directed-broadcast
> duplex auto
> speed auto
> !
> interface Serial0/0
> ip address 137.1.15.5 255.255.255.0
> no ip directed-broadcast
> ip rip send version 2
> no ip mroute-cache
> clockrate 2000000
> !
> interface BRI0/0
> no ip address
> no ip directed-broadcast
> encapsulation ppp
> dialer pool-member 1
> isdn switch-type basic-5ess
> ppp authentication pap
> ppp pap sent-username R5 password 7 060506324F41
> !
> interface FastEthernet0/1
> no ip address
> no ip directed-broadcast
> shutdown
> duplex auto
> speed auto
> !
> interface Dialer1
> ip address 137.1.35.2 255.255.255.252
> no ip directed-broadcast
> encapsulation ppp
> ip ospf demand-circuit
> dialer remote-name R3
> dialer pool 1
> dialer string 8358661
> dialer-group 1
> no peer neighbor-route
> !
> router ospf 1
> redistribute rip metric 1000 subnets
> network 137.1.5.5 0.0.0.0 area 3
> network 137.1.35.2 0.0.0.0 area 3
> network 137.1.65.5 0.0.0.0 area 3
> !
> router rip
> redistribute ospf 1
> passive-interface FastEthernet0/0
> passive-interface Dialer1
> network 137.1.0.0
> default-information originate
> !
> ip classless
> !
> access-list 100 permit ip host 137.1.35.2 any log
> dialer-list 1 protocol ip permit
> ---------------------------------------------------------------
> legacy DDR
> --------------
> [R3]
> hostname R3
> !
> enable password cisco
> !
> username R5 password 0 cisco
> !
> ip subnet-zero
> no ip domain-lookup
> !
> isdn switch-type basic-5ess
> !
> interface Loopback0
> ip address 137.1.3.3 255.255.255.0
> no ip directed-broadcast
> !
> interface FastEthernet0/0
> ip address 137.1.63.3 255.255.255.0
> no ip directed-broadcast
> duplex auto
> speed auto
> !
> interface Serial0/0
> ip address 137.1.254.3 255.255.255.248
> no ip directed-broadcast
> encapsulation frame-relay
> ip ospf network point-to-multipoint
> no ip mroute-cache
> no fair-queue
> frame-relay map ip 137.1.254.2 101 broadcast
> frame-relay map ip 137.1.254.4 100 broadcast
> frame-relay lmi-type ansi
> !
> interface BRI0/0
> ip address 137.1.35.1 255.255.255.252
> no ip directed-broadcast
> encapsulation ppp
> dialer map ip 137.1.35.2 name R5 broadcast
> dialer-group 1
> isdn switch-type basic-5ess
> ppp authentication pap
> ppp pap sent-username R3 password 7 1414110209
> !
> router ospf 1
> network 137.1.3.3 0.0.0.0 area 3
> network 137.1.35.1 0.0.0.0 area 3
> network 137.1.63.3 0.0.0.0 area 3
> network 137.1.254.3 0.0.0.0 area 0
> !
> ip classless
> !
> access-list 100 permit ip host 137.1.35.1 any log
> dialer-list 1 protocol ip permit
> [R5]
> hostname R5
> !
> logging buffered 40960 debugging
> enable password cisco
> !
> username R3 password 0 ccie
> !
> ip subnet-zero
> no ip domain-lookup
> !
> isdn switch-type basic-5ess
> !
> interface Loopback0
> ip address 137.1.5.5 255.255.255.0
> no ip directed-broadcast
> !
> interface FastEthernet0/0
> ip address 137.1.65.5 255.255.255.0
> no ip directed-broadcast
> duplex auto
> speed auto
> !
> interface Serial0/0
> ip address 137.1.15.5 255.255.255.0
> no ip directed-broadcast
> ip rip send version 2
> no ip mroute-cache
> clockrate 2000000
> !
> interface BRI0/0
> ip address 137.1.35.2 255.255.255.252
> no ip directed-broadcast
> encapsulation ppp
> ip ospf demand-circuit
> dialer map ip 137.1.35.1 name R3 broadcast 8358661
> dialer-group 1
> isdn switch-type basic-5ess
> no peer neighbor-route
> ppp authentication pap
> ppp pap sent-username R5 password 7 060506324F41
> !
> router ospf 1
> redistribute rip subnets
> network 137.1.5.5 0.0.0.0 area 3
> network 137.1.35.2 0.0.0.0 area 3
> network 137.1.65.5 0.0.0.0 area 3
> !
> router rip
> redistribute ospf 1
> passive-interface FastEthernet0/0
> passive-interface BRI0/0
> network 137.1.0.0
> default-information originate
> !
> ip classless
> !
> access-list 100 permit ip host 137.1.35.2 any log
> dialer-list 1 protocol ip permit
>
>
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