Have a look at this lab, sorry for the long post.
*Topology:*
R1 is the hub and it's configured with three P2P sub-interfaces:
S0/0.12 (connecting R1 to R2)
S0/0.13 (Connecting R1 to R3)
S0/0.14 (Connecting R1 to R4)
R4 and R5 are connected via a Frame-relay P2P connection.
*IP Addressing:*
*R1's IP addressing:*
connection to R2 10.1.12.1/24
connection to R3 10.1.13.1/24
connection to R4 10.1.14.1/24
Loopback 0 1.1.1.1/24
*R2's IP addressing:*
connection to R1 10.1.12.2/24
*R3's IP addressing:*
connection to R1 10.1.13.3/24
*R4's IP addressing:*
connection to R1 10.1.14.4/24
connection to R5 10.1.45.4/24
*R5's IP addressing:*
connection to R4 10.1.45.5/24
Loopback 2 2.2.2.2/24
Loopback 3 3.3.3.3/24
*Task 1*
* *
Configure OSPF area 0 on the following routers/interfaces; ensure
that the loopback interfaces are advertised with their correct mask:
*Router*
*Interface*
R4
S0/0.45
*R5*
*S0/0.54*
*Loopback 2*
*Loopback 3*
*On R4*
R4(config)#*router ospf 1*
R4(config-router)#*netw 10.1.45.4 0.0.0.0 area 0*
*On R5*
R5(config)#*int lo2*
R5(config-if)#*ip ospf netw point-to-point*
R5(config-if)#*int lo3*
R5(config-if)#*ip ospf netw point-to-point*
R5(config)#*router ospf 1*
R5(config-router)#*netw 10.1.45.5 0.0.0.0 area 0*
R5(config-router)#*netw 2.2.2.2 0.0.0.0 area 0*
R5(config-router)#*netw 3.3.3.3 0.0.0.0 area 0*
*To verify the configuration:*
* *
*On R4*
R4#*show ip route ospf*
2.0.0.0/24 is subnetted, 1 subnets
O 2.2.2.0 [110/65] via 10.1.45.5, 00:01:18, Serial0/0.45
3.0.0.0/24 is subnetted, 1 subnets
O 3.3.3.0 [110/65] via 10.1.45.5, 00:01:18, Serial0/0.45
*Task 2*
Configure Eigrp 100 on the following routers/interfaces; disable
auto summarization.
*Router*
*Interface*
R1
S0/0.12
S0/0.13
S0/0.14
Loopback 0
R2
S0/0.21
R3
S0/0.31
R4
S0/0.41
*On R1*
R1(config)#*router eigrp 100*
R1(config-router)#*NO au*
R1(config-router)#*netw 10.1.12.1 0.0.0.0*
R1(config-router)#*netw 10.1.13.1 0.0.0.0*
R1(config-router)#*netw 10.1.14.1 0.0.0.0*
R1(config-router)#*netw 1.1.1.1 0.0.0.0*
*On R2*
R2(config)#*router eigrp 100*
R2(config-router)#*NO au*
R2(config-router)#*netw 10.1.12.2 0.0.0.0*
*On R3*
R3(config)#*router eigrp 100*
R3(config-router)#*NO au*
R3(config-router)#*netw 10.1.13.3 0.0.0.0*
*On R4*
R4(config)#*router eigrp 100*
R4(config-router)#*NO au*
R4(config-router)#*netw 10.1.14.4 0.0.0.0*
*To verify the configuration:*
* *
*On R4*
R4#*show ip route eigrp *
1.0.0.0/24 is subnetted, 1 subnets
D 1.1.1.0 [90/2297856] via 10.1.14.1, 00:04:29, Serial0/0.41
10.0.0.0/24 is subnetted, 4 subnets
D 10.1.13.0 [90/2681856] via 10.1.14.1, 00:14:24, Serial0/0.41
D 10.1.12.0 [90/2681856] via 10.1.14.1, 00:14:24, Serial0/0.41
*On R3*
R3#*show ip route eigrp *
1.0.0.0/24 is subnetted, 1 subnets
D 1.1.1.0 [90/2297856] via 10.1.13.1, 00:03:58, Serial0/0.31
10.0.0.0/24 is subnetted, 3 subnets
D 10.1.14.0 [90/2681856] via 10.1.13.1, 00:14:48, Serial0/0.31
D 10.1.12.0 [90/2681856] via 10.1.13.1, 00:14:48, Serial0/0.31
*On R2*
R2#*show ip route eigrp*
1.0.0.0/24 is subnetted, 1 subnets
D 1.1.1.0 [90/2297856] via 10.1.12.1, 00:03:08, Serial0/0.21
10.0.0.0/24 is subnetted, 3 subnets
D 10.1.14.0 [90/2681856] via 10.1.12.1, 00:15:16, Serial0/0.21
D 10.1.13.0 [90/2681856] via 10.1.12.1, 00:15:16, Serial0/0.21
*Task 3*
Configure mutual redistribution between OSPF and EIGRP on R4; use a
metric of your choice.
*On R4*
R4(config)#*router ospf 1*
R4(config-router)#*redistribute eigrp 100 subnets*
R4(config)#*router eigrp 100*
R4(config-router)#*redistribute ospf 1 metric 1 1 1 1 1*
*To verify the configuration:*
* *
*On R5*
* *
R5#*show ip route ospf | inc O*
O E2 1.1.1.0 [110/20] via 10.1.45.4, 00:06:00, Serial0/0.54
O E2 10.1.14.0 [110/20] via 10.1.45.4, 00:07:39, Serial0/0.54
O E2 10.1.13.0 [110/20] via 10.1.45.4, 00:07:39, Serial0/0.54
O E2 10.1.12.0 [110/20] via 10.1.45.4, 00:07:39, Serial0/0.54
*On R1*
R1#*show ip route eigrp*
2.0.0.0/24 is subnetted, 1 subnets
D EX 2.2.2.0 [170/2560512256] via 10.1.14.4, 00:01:00, Serial0/0.14
3.0.0.0/24 is subnetted, 1 subnets
D EX 3.3.3.0 [170/2560512256] via 10.1.14.4, 00:01:00, Serial0/0.14
10.0.0.0/24 is subnetted, 4 subnets
D EX 10.1.45.0 [170/2560512256] via 10.1.14.4, 00:01:00, Serial0/0.14
* *
*On R2*
R2#*show ip route eigrp*
* *
1.0.0.0/24 is subnetted, 1 subnets
D 1.1.1.0 [90/2297856] via 10.1.12.1, 00:07:33, Serial0/0.21
* 2.0.0.0/24 is subnetted, 1 subnets*
*D EX 2.2.2.0 [170/2561024256] via 10.1.12.1, 00:01:51, Serial0/0.21*
* 3.0.0.0/24 is subnetted, 1 subnets*
*D EX 3.3.3.0 [170/2561024256] via 10.1.12.1, 00:01:51, Serial0/0.21*
10.0.0.0/24 is subnetted, 4 subnets
D 10.1.14.0 [90/2681856] via 10.1.12.1, 00:19:41, Serial0/0.21
D 10.1.13.0 [90/2681856] via 10.1.12.1, 00:19:41, Serial0/0.21
D EX 10.1.45.0 [170/2561024256] via 10.1.12.1, 00:01:51, Serial0/0.21
*On R3*
R3#*show ip route eigrp*
1.0.0.0/24 is subnetted, 1 subnets
D 1.1.1.0 [90/2297856] via 10.1.13.1, 00:10:45, Serial0/0.31
*2.0.0.0/24 is subnetted, 1 subnets*
*D EX 2.2.2.0 [170/2561024256] via 10.1.13.1, 00:05:02, Serial0/0.31*
* 3.0.0.0/24 is subnetted, 1 subnets*
*D EX 3.3.3.0 [170/2561024256] via 10.1.13.1, 00:05:02, Serial0/0.31*
10.0.0.0/24 is subnetted, 4 subnets
D 10.1.14.0 [90/2681856] via 10.1.13.1, 00:21:34, Serial0/0.31
D 10.1.12.0 [90/2681856] via 10.1.13.1, 00:21:34, Serial0/0.31
D EX 10.1.45.0 [170/2561024256] via 10.1.13.1, 00:05:02, Serial0/0.31
*NOTE: R2 and R3 have networks 2.2.2.0/24 and 3.3.3.0/24.*
*Task 4*
Configure Eigrp stub on R1 such that it ONLY advertises its
directly connected interfaces that are advertised with a network command
to its Eigrp neighbors.
*On R1*
R1(config)#*router eigrp 100*
R1(config-router)#*eigrp stub connected*
*To verify the configuration:*
* *
*On R2*
R2#*show ip route eigrp *
1.0.0.0/24 is subnetted, 1 subnets
D 1.1.1.0 [90/2297856] via 10.1.12.1, 00:02:01, Serial0/0.21
10.0.0.0/24 is subnetted, 3 subnets
D 10.1.14.0 [90/2681856] via 10.1.12.1, 00:02:01, Serial0/0.21
D 10.1.13.0 [90/2681856] via 10.1.12.1, 00:02:01, Serial0/0.21
*On R3*
* *
R3#*show ip route eigrp*
1.0.0.0/24 is subnetted, 1 subnets
D 1.1.1.0 [90/2297856] via 10.1.13.1, 00:02:41, Serial0/0.31
10.0.0.0/24 is subnetted, 3 subnets
D 10.1.14.0 [90/2681856] via 10.1.13.1, 00:02:41, Serial0/0.31
D 10.1.12.0 [90/2681856] via 10.1.13.1, 00:02:41, Serial0/0.31
*On R1*
R1#*show ip route eigrp*
2.0.0.0/24 is subnetted, 1 subnets
D EX 2.2.2.0 [170/2560512256] via 10.1.14.4, 00:03:25, Serial0/0.14
3.0.0.0/24 is subnetted, 1 subnets
D EX 3.3.3.0 [170/2560512256] via 10.1.14.4, 00:03:25, Serial0/0.14
10.0.0.0/24 is subnetted, 4 subnets
D EX 10.1.45.0 [170/2560512256] via 10.1.14.4, 00:03:25, Serial0/0.14
*Note R2 and R3 DO NOT have the redistributed routes; this is because of
R1s stub connected configuration.*
* *
*Task 5*
Configure R1 such that routers R2 and R3 have networks 2.2.2.0 /24 and
3.3.3.0 /24 in their routing table. DO NOT remove the Eigrp stub
connected
configuration from R1 to accomplish this task.
*To accomplish this task a leak-map is referenced in the Eigrp stub
connected command. *
*The leak-map references a route-map called TST, the route-map references
an access-list. *
*Any IP address/es that are permitted in the access-list is leaked along
the connected networks.*
*On R1*
R1(config)#*access-list* *1* *permit 2.2.2.0 0.0.0.255*
R1(config)#*access-list* *1* *permit 3.3.3.0 0.0.0.255*
R1(config)#*route-map* *TST* *permit 10*
R1(config-route-map)#*match ip addr 1*
R1(config)#*router eigrp 100*
R1(config-router)#*eigrp stub connected leak-map* *TST*
*To verify the configuration:*
* *
*On R2*
* *
*R2#show ip route eigrp | inc ex*
*D EX 2.2.2.0* [170/2561024256] via 10.1.12.1, 00:04:29, Serial0/0.21
*D EX 3.3.3.0* [170/2561024256] via 10.1.12.1, 00:04:29, Serial0/0.21
* *
*On R3*
* *
*R3#show ip route eigrp | inc ex*
*D EX 2.2.2.0* [170/2561024256] via 10.1.13.1, 00:00:13, Serial0/0.31
*D EX 3.3.3.0* [170/2561024256] via 10.1.13.1, 00:00:13, Serial0/0.31
*Note both R2 and R3 have both networks (2.2.2.0 /24 and 3.3.3.0 /24) in
their routing table.*
* *
*Task 6*
Re-configure R1 such that R2 gets network 2.2.2.0 /24 and R3 gets
network 3.3.3.0 /24. DO NOT remove the Eigrp stub connected configuration
from R1 to accomplish this task.
*The access-list and the route-map TST should be removed before proceeding
further: *
* *
*On R1*
R1(config)#*NO* *access-list 1*
R1(config)#*NO* *route-map TST*
*We should identify the two networks using two different access-lists, in
this *
*case access-list 2 identifies network 2.2.2.0 /24 and access-list 3
identifies *
*network 3.3.3.0 /24:*
R1(config)#*access-list* *2* *permit 2.2.2.0 0.0.0.255*
R1(config)#*access-list* *3* *permit 3.3.3.0 0.0.0.255*
*The next step is to configure a new route-map as follows:*
R1(config)#*route-map* *TST* *permit 10*
R1(config-route-map)#*match ip addr* *2*
R1(config-route-map)#*match inter S0/0.12*
R1(config-route-map)#*route-map* *TST* *permit 20*
R1(config-route-map)#*match ip addr* *3*
R1(config-route-map)#*match inter S0/0.13*
* *
*To verify the configuration:*
* *
*On R2*
*R2#show ip route eigrp | inc ex*
*D EX 2.2.2.0* [170/2561024256] via 10.1.12.1, 00:03:16, Serial0/0.21
*On R3*
* *
*R3#show ip route eigrp | inc ex*
*D EX 3.3.3.0* [170/2561024256] via 10.1.13.1, 00:03:43, Serial0/0.31
*Task 7*
Erase the startup configuration and reload the routers before proceeding to
the next lab.
I hope this helped.
On Wed, Jul 11, 2012 at 2:34 PM, Tony Singh <mothafungla_at_gmail.com> wrote:
>
> ok got this feature working with....
>
> topology (r3 & r4 stubs) r3 having neighbourships with r1 & r3
> r1 ---> r3 ---> r4
>
> on r3 learnt 1.1.1.1 from r1 then created a leak map referencing
> access-list to permit the leak of 1.1.1.1 which was duly learned on r4
> after this.
>
> used in situations where we have 2 distribution devices on remote sites &
> for 2nd router to route around a failed link?
>
> correct me please....
>
>
>
> On 11 July 2012 09:45, Tony Singh <mothafungla_at_gmail.com> wrote:
>
>> Narbik
>>
>> That would be great please. I haven't fully had a chance to test various
>> options or go through doc cd before posting this (shooting from the hip)
>>
>>
>> --
>> BR
>>
>> Sent from my iPhone on 3
>>
>> On 11 Jul 2012, at 07:36, Narbik Kocharians <narbikk_at_gmail.com> wrote:
>>
>> Do you guys want a lab on that? Would that help?
>>
>> On Tue, Jul 10, 2012 at 10:24 PM, Tony Singh <mothafungla_at_gmail.com>wrote:
>>
>>> Thanks Leigh, could not find a config guide under 12.4 mainline will
>>> check it out, prior under a non stub router got it working perfect after
>>> interface summary.
>>>
>>> --
>>> BR
>>>
>>> Sent from my iPhone on 3
>>>
>>> On 11 Jul 2012, at 02:05, "Leigh Finch" <leigh_at_leighfinch.net> wrote:
>>>
>>> > Hi Tony,
>>> > As far as I can tell from the DOC-CD and my own testing, the leak-map
>>> only
>>> > applies to routes learned via EIGRP. As soon as you apply a leak-map
>>> to an
>>> > EIGRP stub you need to explicitly allow connected, static,
>>> redistributed
>>> > routes if you want those.
>>> >
>>> > I think you are looking for something more like.
>>> >
>>> > eigrp 500
>>> > redistribute connected route-map LEAK metric 1 1 1 1 1
>>> > network 70.1.1.0 0.0.0.3
>>> > no auto-summary
>>> > eigrp stub redistributed
>>> >
>>> > leigh
>>> >
>>> >> Any secret to using these maps on a stub area to leak two routes out?
>>> >>
>>> >> Here's my config..
>>> >>
>>> >> R1>R2 10mbps fe 70.1.1.0/30
>>> >>
>>> >>
>>> >> R2
>>> >>
>>> >> Loopbacks
>>> >> 80.1.2.1
>>> >> 80.1.3.1
>>> >>
>>> >> access-list 7 permit 80.1.0.0 0.0.3.255
>>> >> route-map LEAK
>>> >> match ip address 7
>>> >>
>>> >> eigrp 500
>>> >> network 70.1.1.0 0.0.0.3
>>> >> no auto-summary
>>> >> eigrp stub leak-map LEAK
>>> >>
>>> >> I'm not seeing the routes on R1- go on point it out..
>>> >>
>>> >> --
>>> >> BR
>>> >>
>>> >> Tony
>>> >>
>>> >> Sent from my iPad
>>> >>
>>> >>
>>> >> Blogs and organic groups at http://www.ccie.net
>>> >>
>>> >>
>>> _______________________________________________________________________
>>> >> Subscription information may be found at:
>>> >> http://www.groupstudy.com/list/CCIELab.html
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
>>> _______________________________________________________________________
>>> Subscription information may be found at:
>>> http://www.groupstudy.com/list/CCIELab.html
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>> --
>> *Narbik Kocharians
>> *CCSI#30832, CCIE# 12410 (R&S, SP, Security)
>> *www.MicronicsTraining.com* <http://www.micronicstraining.com/>
>> Sr. Technical Instructor
>> YES! We take Cisco Learning Credits!
>> A Cisco Learning Partner
>>
>>
>
-- *Narbik Kocharians *CCSI#30832, CCIE# 12410 (R&S, SP, Security) *www.MicronicsTraining.com* <http://www.micronicstraining.com/> Sr. Technical Instructor YES! We take Cisco Learning Credits! A Cisco Learning Partner Blogs and organic groups at http://www.ccie.netReceived on Wed Jul 11 2012 - 14:58:21 ART
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