From: Bhuiyan Muhaimeen (levanto@gmail.com)
Date: Wed Oct 29 2008 - 06:26:56 ARST
Hi Thameem,
This is an excellent opportunity for you to do some GNS labbing up.
Just set up the following topology:
R1 ----- RouterA --------- R2
Let R1 run RIP with RouterA and R2 run OSPF with RouterA.
Then put the config you are looking at, on RouterA and you'll have answered
any questions you have about this by yourself!
Also note that the example routerA is doing RIP ver 1 with auto summary
which you will not see in the lab exam! Also some times the language on
documentation CD is cryptic and might not be in a way that is readily
understandable. However, if you lab this up then you will learn the answer
by yourself and I think that way you'll remember it better.
For questions like this, I think it's best to do lab set up. If somebody
gives you answers directly, he is actually doing you a dis-service by it!
If you need help with GNS and router emulation, start here:
http://en.wikipedia.org/wiki/Dynamips
If you still have questions after labbing this up, please let us know and I
will go through this with you!
HTH!
-Bhuiyan Muhaimeen
CCIE # 21880 (R&S)
On Sun, Oct 26, 2008 at 9:43 PM, Thameem Maranveetil Parambath <
tparamba@thecontactcentre.ae> wrote:
> http://www.cisco.com/en/US/docs/internetworking/case/studies/cs001.html
>
> Dear Experts,
>
> In the above link, can someone clarify the use of access-lists 10 and 11
> used in distribute-list command.
>
>
>
> access-list 10 deny 130.10.8.0 0.0.7.255
>
> access-list 10 permit 0.0.0.0 255.255.255.255
>
> access-list 11 permit 130.10.8.0 0.0.7.255
>
> access-list 11 deny 0.0.0.0 255.255.255.255
>
>
> sunets 130.10.8.0 to 130.10.15.0 are in RIP and 130.10.62.0 and
> 130.10.63.0 are in OSPF domains
>
> So when doing redistribution from RIP to OSPF the subnets in the RIP
> domain are denied from redistributed to OSPF because of possible loops.
> This is clear from the access-list 10 and
> distribute-list 10 out ospf 109 commands.
>
> Similar way when doing OSPF, I believe the subnets in OSPF domain has to
> be denied when redistribution to RIP .. but the access-list 11 is not
> having that entries and
> distribute-list 11 out rip commands.
>
> Please clarify this doubt.
>
> Also if someone can give some nice links of redistribution would be gr8.
>
> Warm Regards
>
> Thameem M Parambath
>
>
>
>
>
>
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