Yes. In a link-state protocol like OSPF the link-state database must be identical on all the routers in an area. Therefore, when you use the distribute-list in command in OSPF what actually happens is you filter between the OSPF database and the RIB. The router still gets the information and has it in the link-state database.
On Wed, Jul 22, 2009 at 3:39 PM, Bodnar, Edward <[email protected]>wrote: > Ill have to check this out. Thanks Joe. > > > > So I guess technically a distribute-list prevents routs from getting into > the rib not from the router receiving them? > > > > Ed, > > > > > > > > *From:* Joe Astorino [mailto:[email protected]] > *Sent:* Wednesday, July 22, 2009 3:35 PM > *To:* Bodnar, Edward > *Cc:* khaled Saholy; [email protected] > *Subject:* Re: [OSL | CCIE_RS] VOL3 LAB7 OSPF Filtering - question to the > experts > > > > Guys be extremely careful with the distribute-list command in OSPF. Check > out this FAQ from Cisco for more information. Remember, it is link-state so > the LSDB must be the same across the area! > > > http://www.cisco.com/en/US/tech/tk365/technologies_q_and_a_item09186a0080094704.shtml#q12 > > On Wed, Jul 22, 2009 at 3:28 PM, Bodnar, Edward <[email protected]> > wrote: > > I would say as long and you look in your route table and you only see odd > routs then your ok. As long as they are not requiring you to use a > “prefix-list” you can do anything that works. > > > > I always try to do the easy way unless I am forced not to. Standard ACL’s > matched with distribute-list are what I use unless I have a reason not to. > > > > Ed, > > > > > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *khaled Saholy > *Sent:* Wednesday, July 22, 2009 3:23 PM > > > *To:* [email protected] > > *Subject:* [OSL | CCIE_RS] VOL3 LAB7 OSPF Filtering - question to the > experts > > > > > > Dear Experts, > > I have some questions regading the VOL3 labs. So I'll start with lab7. > > In lab 7 , task 3.5 , the task is asking for R9 to receive only even > routes from BB2 via serial 0/2/0 only and the odd routes via serial 0/2/1 > only. The solutions in the proctor guide has been configured in R6 with two > long prefix-lists. I did the configuration in R9 with the (distribute-list > in) with the access-lists and it gave me the same result. > > > > Is my solution correct ? > > > > Thanks for the reply in advance. > > > > Khaled Al-Saholy > > > > > > > ------------------------------ > > See all the ways you can stay connected to friends and > family<http://www.microsoft.com/windows/windowslive/default.aspx> > > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > > > > -- > Regards, > > Joe Astorino - CCIE #24347 R&S > Technical Instructor - IPexpert, Inc. > Cell: +1.586.212.6107 > Fax: +1.810.454.0130 > Mailto: [email protected] > -- Regards, Joe Astorino - CCIE #24347 R&S Technical Instructor - IPexpert, Inc. Cell: +1.586.212.6107 Fax: +1.810.454.0130 Mailto: [email protected]
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