From: Andy Hogard (andyhogard@gmail.com)
Date: Fri Dec 26 2008 - 14:31:05 ARST
Also, in the WB solution ..there is a static route, being used to null0.
Which in the lab would simply be not possible ..hence, the reason why I came
up with an alternate.
Just thought would add it as well.
On Fri, Dec 26, 2008 at 9:57 PM, Andy Hogard <andyhogard@gmail.com> wrote:
> Yeah, R3 never gets it, because it has its own as no in the as-path .. but
> then aggergate goes away only when the lo 0 on R1 goes down, R3 never gets
> the aggegrate ya!!
>
> *"R1 should NOT use R2 if it's network 3.1.11.0/24 network is down"* which
> is also part of the task, and the solution is in co-ordance with the task
> ..init?!
>
> :-?
>
>
> On Fri, Dec 26, 2008 at 9:16 PM, Larry <cc13lab@gmail.com> wrote:
>
>> then you would still get 0 points because the aggregate is gone..... read
>> the question it is to create an aggregate that R3 does not get.... not R1
>>
>>
>> This aggregation should be done such that
>> the R1 in AS 100 is the only AS that recieves the aggregate route,
>>
>>
>>
>>
>> On Fri, Dec 26, 2008 at 10:39 AM, Andy Hogard <andyhogard@gmail.com>wrote:
>>
>>> Yeah, I know Narbik must be busy with x-mas ya!! So seeking some help
>>> from the group & I thought someone must have done this whilst their
>>> practise.
>>>
>>> Anyways, are you telling this ..because you tested my config or just
>>> because you feel so. Lab it up dear, R1 will no longer have the summary ..if
>>> its loo 0 ie 3.1.11.0/24 went down. That's infact is the condition in
>>> the advertise map on R2. Infact when R1 loo 0 goes down it is only left with
>>> 2.0.0.0/8 netowrk in its bgp table. :)
>>>
>>> So I would still bag points, and besides all this I just wanted to know
>>> if this is a valid solution for his task.
>>>
>>> Cheers!
>>>
>>> On Fri, Dec 26, 2008 at 8:07 PM, Larry <cc13lab@gmail.com> wrote:
>>>
>>>> You would get 0 points for the section because R1 will use the summary
>>>> address when its 3.1.11.0/24 is down.
>>>>
>>>> "R1 should NOT use R2 if it's
>>>> network 3.1.11.0/24 network is down."
>>>>
>>>> But why are you asking us?? why not ask Narbik these questions????
>>>>
>>>>
>>>>
>>>> -larry
>>>>
>>>>
>>>>
>>>> On Fri, Dec 26, 2008 at 7:41 AM, Andy Hogard <andyhogard@gmail.com>wrote:
>>>>
>>>>> Hey all,
>>>>>
>>>>>
>>>>> This is what *the task* *5 of bgp lab 5 wants us to do "*R2 should
>>>>> aggergate
>>>>> all the networks in 3.1.0.0 address space and advertise a single
>>>>> aggregate
>>>>> route that only aggregates the specific routes for subnet under the
>>>>> 3.0.0.0
>>>>> network in it's BGP table, ensure that the atomic-aggregate attribute
>>>>> is not
>>>>> attacher to the aggregate route. This aggregation should be done such
>>>>> that
>>>>> the R1 in AS 100 is the only AS that recieves the aggregate route, R3
>>>>> in AS
>>>>> 300 should NOT recieve the aggregate route. R1 should NOT use R2 if
>>>>> it's
>>>>> network 3.1.11.0/24 network is down. R3 does not need NLRI to network
>>>>> 3.1.11.0/24 advertised by R1.*"*
>>>>>
>>>>> *Network topolgy,*
>>>>>
>>>>> R1 -----FR-Cloud----- R2 ------Ethernet ------R3
>>>>> 10.1.12.0/24 10.1.23.0/24
>>>>>
>>>>>
>>>>> Hmm, *below is my solution* to achieve this task, *which differs from
>>>>> the
>>>>> solution mentioned in the w-book..*
>>>>>
>>>>> *Config on R1,*
>>>>>
>>>>> version 12.3
>>>>> service timestamps debug datetime msec
>>>>> service timestamps log datetime msec
>>>>> no service password-encryption
>>>>> !
>>>>> hostname R1
>>>>> !
>>>>> boot-start-marker
>>>>> boot-end-marker
>>>>> !
>>>>> !
>>>>> no aaa new-model
>>>>> !
>>>>> resource policy
>>>>> !
>>>>> memory-size iomem 5
>>>>> ip subnet-zero
>>>>> !
>>>>> !
>>>>> ip cef
>>>>> no ip domain lookup
>>>>> no ip dhcp use vrf connected
>>>>> !
>>>>> !
>>>>> no ip ips deny-action ips-interface
>>>>> !
>>>>> no ftp-server write-enable
>>>>> !
>>>>> no crypto isakmp ccm
>>>>> !
>>>>> !
>>>>> interface Loopback0
>>>>> ip address 3.1.11.1 255.255.255.0
>>>>> !
>>>>> interface Ethernet0/0
>>>>> no ip address
>>>>> shutdown
>>>>> half-duplex
>>>>> !
>>>>> interface Ethernet0/1
>>>>> no ip address
>>>>> shutdown
>>>>> half-duplex
>>>>> !
>>>>> interface Ethernet0/2
>>>>> no ip address
>>>>> shutdown
>>>>> half-duplex
>>>>> !
>>>>> interface Ethernet0/3
>>>>> no ip address
>>>>> shutdown
>>>>> half-duplex
>>>>> !
>>>>> interface Serial1/0
>>>>> no ip address
>>>>> encapsulation frame-relay
>>>>> serial restart-delay 0
>>>>> no dce-terminal-timing-enable
>>>>> !
>>>>> interface Serial1/0.12 point-to-point
>>>>> ip address 10.1.12.1 255.255.255.0
>>>>> frame-relay interface-dlci 102
>>>>> !
>>>>> interface Serial1/1
>>>>> no ip address
>>>>> shutdown
>>>>> serial restart-delay 0
>>>>> no dce-terminal-timing-enable
>>>>> !
>>>>> interface Serial1/2
>>>>> no ip address
>>>>> shutdown
>>>>> serial restart-delay 0
>>>>> no dce-terminal-timing-enable
>>>>> !
>>>>> interface Serial1/3
>>>>> no ip address
>>>>> shutdown
>>>>> serial restart-delay 0
>>>>> no dce-terminal-timing-enable
>>>>> !
>>>>> router bgp 100
>>>>> no synchronization
>>>>> bgp log-neighbor-changes
>>>>> network 3.1.11.0 mask 255.255.255.0
>>>>> neighbor 10.1.12.2 remote-as 200
>>>>> neighbor 10.1.12.2 allowas-in 1
>>>>> no auto-summary
>>>>> !
>>>>> ip http server
>>>>> no ip http secure-server
>>>>> ip classless
>>>>> !
>>>>> control-plane
>>>>> !
>>>>> !
>>>>> line con 0
>>>>> exec-timeout 0 0
>>>>> logging synchronous
>>>>> line aux 0
>>>>> line vty 0 4
>>>>> exec-timeout 0 0
>>>>> logging synchronous
>>>>> login
>>>>> !
>>>>> !
>>>>> end
>>>>>
>>>>> *Config on R2,*
>>>>>
>>>>> version 12.3
>>>>> service timestamps debug datetime msec
>>>>> service timestamps log datetime msec
>>>>> no service password-encryption
>>>>> !
>>>>> hostname R2
>>>>> !
>>>>> boot-start-marker
>>>>> boot-end-marker
>>>>> !
>>>>> !
>>>>> no aaa new-model
>>>>> !
>>>>> resource policy
>>>>> !
>>>>> memory-size iomem 5
>>>>> ip subnet-zero
>>>>> !
>>>>> !
>>>>> ip cef
>>>>> no ip domain lookup
>>>>> no ip dhcp use vrf connected
>>>>> !
>>>>> !
>>>>> no ip ips deny-action ips-interface
>>>>> !
>>>>> no ftp-server write-enable
>>>>> !
>>>>> no crypto isakmp ccm
>>>>> !
>>>>> !
>>>>> interface Loopback0
>>>>> ip address 2.2.2.2 255.0.0.0
>>>>> !
>>>>> interface Ethernet0/0
>>>>> ip address 10.1.23.2 255.255.255.0
>>>>> full-duplex
>>>>> !
>>>>> interface Ethernet0/1
>>>>> no ip address
>>>>> shutdown
>>>>> half-duplex
>>>>> !
>>>>> interface Ethernet0/2
>>>>> no ip address
>>>>> shutdown
>>>>> half-duplex
>>>>> !
>>>>> interface Ethernet0/3
>>>>> no ip address
>>>>> shutdown
>>>>> half-duplex
>>>>> !
>>>>> interface Serial1/0
>>>>> no ip address
>>>>> encapsulation frame-relay
>>>>> serial restart-delay 0
>>>>> no dce-terminal-timing-enable
>>>>> !
>>>>> interface Serial1/0.21 point-to-point
>>>>> ip address 10.1.12.2 255.255.255.0
>>>>> frame-relay interface-dlci 201
>>>>> !
>>>>> interface Serial1/1
>>>>> no ip address
>>>>> shutdown
>>>>> serial restart-delay 0
>>>>> no dce-terminal-timing-enable
>>>>> !
>>>>> interface Serial1/2
>>>>> no ip address
>>>>> shutdown
>>>>> serial restart-delay 0
>>>>> no dce-terminal-timing-enable
>>>>> !
>>>>> interface Serial1/3
>>>>> no ip address
>>>>> shutdown
>>>>> serial restart-delay 0
>>>>> no dce-terminal-timing-enable
>>>>> !
>>>>> router bgp 200
>>>>> no synchronization
>>>>> bgp log-neighbor-changes
>>>>> network 2.0.0.0
>>>>> aggregate-address 3.1.0.0 255.255.240.0 as-set summary-only
>>>>> advertise-map
>>>>> IF_NET_3.1.11.0/24
>>>>> neighbor 10.1.12.1 remote-as 100
>>>>> neighbor 10.1.23.3 remote-as 300
>>>>> neighbor 10.1.23.3 unsuppress-map UNSUP_NET3.1.11.0/24
>>>>> default-metric 50
>>>>> no auto-summary
>>>>> !
>>>>> ip http server
>>>>> no ip http secure-server
>>>>> ip classless
>>>>> !
>>>>> !
>>>>> !
>>>>> ip prefix-list NET3.1.11.0/24 seq 5 permit 3.1.11.0/24
>>>>> !
>>>>> route-map IF_NET_3.1.11.0/24 permit 10
>>>>> match ip address prefix-list NET3.1.11.0/24
>>>>> !
>>>>> route-map UNSUP_NET3.1.11.0/24 permit 10
>>>>> match ip address prefix-list NET3.1.11.0/24
>>>>> !
>>>>> !
>>>>> !
>>>>> control-plane
>>>>> !
>>>>> line con 0
>>>>> exec-timeout 0 0
>>>>> logging synchronous
>>>>> line aux 0
>>>>> line vty 0 4
>>>>> exec-timeout 0 0
>>>>> logging synchronous
>>>>> login
>>>>> !
>>>>> !
>>>>> end
>>>>>
>>>>> *Config on R3, *
>>>>>
>>>>> version 12.3
>>>>> service timestamps debug datetime msec
>>>>> service timestamps log datetime msec
>>>>> no service password-encryption
>>>>> !
>>>>> hostname R3
>>>>> !
>>>>> boot-start-marker
>>>>> boot-end-marker
>>>>> !
>>>>> !
>>>>> no aaa new-model
>>>>> !
>>>>> resource policy
>>>>> !
>>>>> memory-size iomem 5
>>>>> ip subnet-zero
>>>>> !
>>>>> !
>>>>> ip cef
>>>>> no ip domain lookup
>>>>> no ip dhcp use vrf connected
>>>>> !
>>>>> !
>>>>> no ip ips deny-action ips-interface
>>>>> !
>>>>> no ftp-server write-enable
>>>>> !
>>>>> !
>>>>> no crypto isakmp ccm
>>>>> !
>>>>> !
>>>>> interface Loopback0
>>>>> ip address 3.1.0.3 255.255.255.0
>>>>> !
>>>>> interface Loopback1
>>>>> ip address 3.1.1.3 255.255.255.0
>>>>> !
>>>>> interface Loopback2
>>>>> ip address 3.1.2.3 255.255.255.0
>>>>> !
>>>>> interface Loopback3
>>>>> ip address 3.1.3.3 255.255.255.0
>>>>> !
>>>>> interface Loopback4
>>>>> ip address 3.1.4.3 255.255.255.0
>>>>> !
>>>>> interface Loopback5
>>>>> ip address 3.1.5.3 255.255.255.0
>>>>> !
>>>>> interface Loopback6
>>>>> ip address 3.1.6.3 255.255.255.0
>>>>> !
>>>>> interface Loopback7
>>>>> ip address 3.1.7.3 255.255.255.0
>>>>> !
>>>>> interface Loopback8
>>>>> ip address 3.1.8.3 255.255.255.0
>>>>> !
>>>>> interface Loopback9
>>>>> ip address 3.1.9.3 255.255.255.0
>>>>> !
>>>>> interface Loopback10
>>>>> ip address 3.1.10.3 255.255.255.0
>>>>> !
>>>>> interface Loopback12
>>>>> ip address 3.1.12.3 255.255.255.0
>>>>> !
>>>>> interface Loopback13
>>>>> ip address 3.1.13.3 255.255.255.0
>>>>> !
>>>>> interface Loopback14
>>>>> ip address 3.1.14.3 255.255.255.0
>>>>> !
>>>>> interface Loopback15
>>>>> ip address 3.1.15.3 255.255.255.0
>>>>> !
>>>>> interface Ethernet0/0
>>>>> ip address 10.1.23.3 255.255.255.0
>>>>> full-duplex
>>>>> !
>>>>> interface Ethernet0/1
>>>>> no ip address
>>>>> shutdown
>>>>> half-duplex
>>>>> !
>>>>> interface Ethernet0/2
>>>>> no ip address
>>>>> shutdown
>>>>> half-duplex
>>>>> !
>>>>> interface Ethernet0/3
>>>>> no ip address
>>>>> shutdown
>>>>> half-duplex
>>>>> !
>>>>> interface Serial1/0
>>>>> no ip address
>>>>> encapsulation frame-relay
>>>>> serial restart-delay 0
>>>>> no dce-terminal-timing-enable
>>>>> !
>>>>> interface Serial1/0.34 point-to-point
>>>>> ip address 10.1.34.3 255.255.255.0
>>>>> frame-relay interface-dlci 304
>>>>> !
>>>>> interface Serial1/1
>>>>> no ip address
>>>>> shutdown
>>>>> serial restart-delay 0
>>>>> no dce-terminal-timing-enable
>>>>> !
>>>>> interface Serial1/2
>>>>> no ip address
>>>>> shutdown
>>>>> serial restart-delay 0
>>>>> no dce-terminal-timing-enable
>>>>> !
>>>>> interface Serial1/3
>>>>> no ip address
>>>>> shutdown
>>>>> serial restart-delay 0
>>>>> no dce-terminal-timing-enable
>>>>> !
>>>>> router bgp 300
>>>>> no synchronization
>>>>> bgp log-neighbor-changes
>>>>> network 3.1.0.0 mask 255.255.255.0
>>>>> network 3.1.1.0 mask 255.255.255.0
>>>>> network 3.1.2.0 mask 255.255.255.0
>>>>> network 3.1.3.0 mask 255.255.255.0
>>>>> network 3.1.4.0 mask 255.255.255.0
>>>>> network 3.1.5.0 mask 255.255.255.0
>>>>> network 3.1.6.0 mask 255.255.255.0
>>>>> network 3.1.7.0 mask 255.255.255.0
>>>>> network 3.1.8.0 mask 255.255.255.0
>>>>> network 3.1.9.0 mask 255.255.255.0
>>>>> network 3.1.10.0 mask 255.255.255.0
>>>>> network 3.1.12.0 mask 255.255.255.0
>>>>> network 3.1.13.0 mask 255.255.255.0
>>>>> network 3.1.14.0 mask 255.255.255.0
>>>>> network 3.1.15.0 mask 255.255.255.0
>>>>> neighbor 10.1.23.2 remote-as 200
>>>>> no auto-summary
>>>>> !
>>>>> ip http server
>>>>> no ip http secure-server
>>>>> ip classless
>>>>> !
>>>>> !
>>>>> control-plane
>>>>> !
>>>>> line con 0
>>>>> exec-timeout 0 0
>>>>> logging synchronous
>>>>> line aux 0
>>>>> line vty 0 4
>>>>> exec-timeout 0 0
>>>>> logging synchronous
>>>>> login
>>>>> !
>>>>> !
>>>>> end
>>>>>
>>>>> *Now while I know my solution is correct, I want some of you experts to
>>>>> tell
>>>>> me if this was the task on the ccie lab, would I have scored all the
>>>>> points
>>>>> or none.
>>>>> *
>>>>>
>>>>> *Regards,
>>>>> Andy.*
>>>>>
>>>>> --
>>>>> My Blog URL: http://ccieno.blogspot.com/
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> My Blog URL: http://ccieno.blogspot.com/
>>>>>
>>>>>
>>>>> Blogs and organic groups at http://www.ccie.net
>>>>>
>>>>> _______________________________________________________________________
>>>>> Subscription information may be found at:
>>>>> http://www.groupstudy.com/list/CCIELab.html
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>
>>>
>>> --
>>> My Blog URL: http://ccieno.blogspot.com/
>>>
>>
>>
>
>
> --
> My Blog URL: http://ccieno.blogspot.com/
>
-- My Blog URL: http://ccieno.blogspot.com/Blogs and organic groups at http://www.ccie.net
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