From: Joseph Brunner (joe@affirmedsystems.com)
Date: Mon Oct 08 2007 - 00:41:58 ART
rack1r2#sh run int s0/0
Building configuration...
Current configuration : 206 bytes
!
interface Serial0/0
ip address 1.1.234.2 255.255.255.0
encapsulation frame-relay
ip ospf priority 0
frame-relay map ip 1.1.234.3 203
frame-relay map ip 1.1.234.4 204
no frame-relay inverse-arp
end
rack1r3#sh run int s0/0
Building configuration...
Current configuration : 172 bytes
!
interface Serial0/0
ip address 1.1.234.3 255.255.255.0
encapsulation frame-relay
ip ospf priority 0
frame-relay map ip 1.1.234.2 302
no frame-relay inverse-arp
end
rack1r4#sh run int s0/0
Building configuration...
Current configuration : 203 bytes
!
interface Serial0/0
ip address 1.1.234.4 255.255.255.0
encapsulation frame-relay
ip ospf priority 0
frame-relay map ip 1.1.234.2 402
no frame-relay inverse-arp
end
and
rack1r2#sh ip ospf nei
Neighbor ID Pri State Dead Time Address Interface
160.1.4.4 0 FULL/ - 00:00:39 1.1.234.4 Tunnel24
160.1.3.3 0 FULL/ - 00:00:36 1.1.234.3 Tunnel23
160.1.8.8 1 FULL/DR 00:00:39 1.1.22.2
FastEthernet0/0
rack1r2#sho ip route ospf | inc Tunnel
O IA 1.1.13.0/24 [110/11113] via 1.1.234.3, 00:06:55, Tunnel23
O IA 1.1.33.0/24 [110/11112] via 1.1.234.3, 00:06:55, Tunnel23
O E2 188.18.18.0/24 [110/20] via 1.1.234.3, 00:06:55, Tunnel23
O E2 188.18.19.0/24 [110/20] via 1.1.234.3, 00:06:55, Tunnel23
O E2 188.18.16.0/24 [110/20] via 1.1.234.3, 00:06:55, Tunnel23
O E2 188.18.17.0/24 [110/20] via 1.1.234.3, 00:06:55, Tunnel23
O E2 160.1.9.9 [110/20] via 1.1.234.3, 00:06:55, Tunnel23
O E2 160.1.3.3 [110/20] via 1.1.234.3, 00:06:55, Tunnel23
-Joe
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Joseph Saad
Sent: Sunday, October 07, 2007 11:29 PM
To: Joseph Brunner
Cc: Gregory Gombas; ccielab@groupstudy.com
Subject: Re: OSPF over Frame-relay Task
You'll need "ip ospf priority 0" under physical interfaces to render the
NBMA network useless and really verify how your routes are learnt.
This will effectively disable NBMA network and verify that your solution
really "works".
Joseph.
On 10/8/07, Joseph Brunner <joe@affirmedsystems.com> wrote:
>
> A tunnel defaults to ospf network type POINT_TO_POINT; my answer is in the
> config here for R2. Ignore other parts which don't matter... But you see
> where I'm going with this... Multicast & Ipv6 comes later...
>
> My wording was very very similar to how this task would be worded in the
> lab. You are forced to consider
> -the default OSPF network type with physical (main) interface frame-relay
> (non-broadcast)
> -That this has a DR
> -But you can't use a DR!
> -Oh, sh*t I can't change the network type...
>
> If faced with a scenario you can't overcome you have to look forward fast
> to
> see how many more points you risk by not SOLVING BY ANY MEANS POSSIBLE...
> I.E there may be 3 QOS, 3 MULTICAST, and 3 BGP points at stake from this
> OSPF configuration... So do you just do what you can (run neighbor
> commands
> with non_broadcast, and have a DR, but don't break the FRAME-RELAY task
> requirements...) and make the 9 easy points later? Maybe come back to this
> after lunch? Strategy, strategy, strategy...
>
> Check it...
>
> rack1r2#sh run
> Building configuration...
>
> Current configuration : 2003 bytes
> !
> version 12.3
> service timestamps debug datetime msec
> service timestamps log datetime msec
> service password-encryption
> !
> hostname rack1r2
> !
> boot-start-marker
> boot-end-marker
> !
> no logging console
> enable secret 5 $1$vY/X$.P5pA3AI0m7dMS8DOSmnK1
> !
> memory-size iomem 30
> aaa new-model
> !
> !
> aaa authentication login default line none
> aaa session-id common
> ip subnet-zero
> ip cef
> !
> !
> !
> no ip domain lookup
> ip audit po max-events 100
> !
> !
> !
> key chain EIGRP
> key 1
> key-string 7 01302F377824
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> interface Loopback0
> ip address 160.1.2.2 255.255.255.255
> !
> interface Tunnel23
> ip unnumbered Serial0/0
> tunnel source 1.1.234.2
> tunnel destination 1.1.234.3
> !
> interface Tunnel24
> ip unnumbered Serial0/0
> tunnel source 1.1.234.2
> tunnel destination 1.1.234.4
> !
> interface FastEthernet0/0
> ip address 1.1.22.12 255.255.255.0
> ip ospf mtu-ignore
> duplex auto
> speed auto
> !
> interface Serial0/0
> ip address 1.1.234.2 255.255.255.0
> encapsulation frame-relay
> frame-relay map ip 1.1.234.3 203
> frame-relay map ip 1.1.234.4 204
> no frame-relay inverse-arp
> !
> interface FastEthernet0/1
> no ip address
> duplex auto
> speed auto
> !
> interface FastEthernet0/1.23
> encapsulation dot1Q 23 native
> ip address 1.1.23.2 255.255.255.0
> !
> interface FastEthernet0/1.103
> encapsulation dot1Q 103
> ip address 150.1.3.2 255.255.255.0
> ip authentication mode eigrp 100 md5
> ip authentication key-chain eigrp 100 EIGRP
> !
> router eigrp 100
> network 1.1.23.2 0.0.0.0
> network 150.1.3.2 0.0.0.0
> no auto-summary
> !
> router ospf 1
> router-id 160.1.2.2
> log-adjacency-changes
> area 99 nssa no-summary
> redistribute connected subnets route-map CONN->OSPF
> redistribute eigrp 100 metric-type 1 subnets tag 2
> network 1.1.22.12 0.0.0.0 area 99
> network 1.1.234.2 0.0.0.0 area 0
> !
> ip classless
> !
> ip http server
> no ip http secure-server
> !
> !
> route-map CONN->OSPF permit 10
> match interface Loopback0
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> line con 0
> exec-timeout 0 0
> password 7 13061E010803
> line aux 0
> line vty 0 4
> password 7 030752180500
> !
> End
>
>
> rack1r2# sh ip ospf int
> Tunnel24 is up, line protocol is up
> Internet Address 0.0.0.0/0, Area 0
> Process ID 1, Router ID 160.1.2.2, Network Type POINT_TO_POINT, Cost:
> 11111
> Transmit Delay is 1 sec, State POINT_TO_POINT,
> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
> oob-resync timeout 40
> Hello due in 00:00:04
> Index 3/3, flood queue length 0
> Next 0x0(0)/0x0(0)
> Last flood scan length is 1, maximum is 12
> Last flood scan time is 0 msec, maximum is 4 msec
> Neighbor Count is 1, Adjacent neighbor count is 1
> Adjacent with neighbor 160.1.4.4
> Suppress hello for 0 neighbor(s)
> Tunnel23 is up, line protocol is up
> Internet Address 0.0.0.0/0, Area 0
> Process ID 1, Router ID 160.1.2.2, Network Type POINT_TO_POINT, Cost:
> 11111
> Transmit Delay is 1 sec, State POINT_TO_POINT,
> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
> oob-resync timeout 40
> Hello due in 00:00:04
> Index 2/2, flood queue length 0
> Next 0x0(0)/0x0(0)
> Last flood scan length is 1, maximum is 12
> Last flood scan time is 0 msec, maximum is 4 msec
> Neighbor Count is 1, Adjacent neighbor count is 1
> Adjacent with neighbor 160.1.3.3
> Suppress hello for 0 neighbor(s)
> Serial0/0 is up, line protocol is up
> Internet Address 1.1.234.2/24, Area 0
> Process ID 1, Router ID 160.1.2.2, Network Type NON_BROADCAST, Cost:
> 1785
> Transmit Delay is 1 sec, State DR, Priority 1
> Designated Router (ID) 160.1.2.2, Interface address 1.1.234.2
> No backup designated router on this network
> Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5
> oob-resync timeout 120
> Hello due in 00:00:23
> Index 1/1, flood queue length 0
> Next 0x0(0)/0x0(0)
> Last flood scan length is 0, maximum is 0
> Last flood scan time is 0 msec, maximum is 0 msec
> Neighbor Count is 0, Adjacent neighbor count is 0
> Suppress hello for 0 neighbor(s)
> FastEthernet0/0 is up, line protocol is up
> Internet Address 1.1.22.12/24, Area 99
> Process ID 1, Router ID 160.1.2.2, Network Type BROADCAST, Cost: 1
> Transmit Delay is 1 sec, State BDR, Priority 1
> Designated Router (ID) 160.1.8.8, Interface address 1.1.22.2
> Backup Designated router (ID) 160.1.2.2, Interface address 1.1.22.12
> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
> oob-resync timeout 40
> Hello due in 00:00:04
> Index 1/4, flood queue length 0
> Next 0x0(0)/0x0(0)
> Last flood scan length is 2, maximum is 10
> Last flood scan time is 0 msec, maximum is 4 msec
> Neighbor Count is 1, Adjacent neighbor count is 1
> Adjacent with neighbor 160.1.8.8 (Designated Router)
> Suppress hello for 0 neighbor(s)
> rack1r2#sh ip ospf nei
>
> Neighbor ID Pri State Dead Time Address
> Interface
> 160.1.4.4 0 FULL/ - 00:00:39 1.1.234.4 Tunnel24
> 160.1.3.3 0 FULL/ - 00:00:38 1.1.234.3 Tunnel23
> 160.1.8.8 1 FULL/DR 00:00:39 1.1.22.2
> FastEthernet0/0
>
> -----Original Message-----
> From: Gregory Gombas [mailto:ggombas@gmail.com]
> Sent: Sunday, October 07, 2007 8:52 PM
> To: Joseph Brunner
> Cc: ccielab@groupstudy.com
> Subject: Re: OSPF over Frame-relay Task
>
> Hmmm
>
> No DR means you can't use network types NBMA or Broadcast.
> Can't use opsf network command means you can't change the network type
> to multipoint which would have been my choice.
>
> Looks like PPP over Frame Relay is the only choice here.
>
> What other way is there?
>
>
> On 10/7/07, Joseph Brunner <joe@affirmedsystems.com> wrote:
> > Can anyone add something to this task (I made it up). (Slevin I made
> this
> > for you, so you won't have to ask us later ;)
> >
> >
> >
> > 2.1 Frame-relay Configuration
> >
> > - Configure frame-relay between R2, R3 and R4 per the diagram
> >
> > - Configure frame-relay using only these device's physical
> interfaces.
> >
> > - Disable the use of inverse arp on these interfaces.
> >
> > - R3 & R4 will each only have 1 "frame-relay map" command
> >
> > - Do not use the "broadcast" keyword on any interface
> >
> > .
> >
> >
> >
> >
> >
> > 3.2 OSPF Configuration over Frame-relay
> >
> > - Configure OSPF area 0 between R2, R3 and R4
> >
> > - You are not allowed to use the command "ip ospf network" on any of
> > these routers
> >
> > - You are not allowed to create any additional addressing for this
> task
> >
> > - There will not be a DR in this area.
> >
> >
> >
> >
> >
> > There are several ways to solve this task; I think it's a pretty good
> judge
> > of whether or not you're ready for the CREATIVITY required to pass the
> lab.
> >
> >
> >
> > -Joe
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
> _______________________________________________________________________
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