RE: ospf network point-to-multipoint

From: Ahmed (ahmed_mustafa01@excite.com)
Date: Sat Nov 29 2003 - 02:01:52 GMT-3

 Brian and Jason, Thanks for the explanation. It was one of the labs from IPExpert that created problem for me. I will try to simulate the lab and get back to you guys if run into any problems. Thanks again.--- On Fri 11/28, Brian Dennis < bdennis@internetworkexpert.com > wrote:From: Brian Dennis [mailto: bdennis@internetworkexpert.com]To: jasonviera@avenuecable.com, ahmed_mustafa01@excite.com, ccielab@groupstudy.comDate: Fri, 28 Nov 2003 19:57:47 -0800Subject: RE: ospf network point-to-multipointJason,Of course you are assuming that RIP is enabled for the same major networkand that PPP is being used ;-) Also you spoiled my surprise. Shouldn't you be doing something else on aFriday evening? ;-)Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)bdennis@internetworkexpert.com Toll Free: 877-224-8987Direct: 775-745-6404 (Outside the US and Canada)Internetwork Expert, Inc.http://www.InternetworkExpert.com-----Original Message-----From: Jason Viera [mailto:jasonviera@ave!
 nuecable.com] Sent: Friday, November 28, 2003 7:35 PMTo: Ahmed; bdennis@internetworkexpert.com; ccielab@groupstudy.comSubject: Re: ospf network point-to-multipointAhmed, Are you sure that the P2M routes are bringing up the interface?? Whenyou run OSPF over ISDN and are mutually redistributing RIP and OSPF you needto either use the "no peer neighbor-route" command on the ISDN interface orfilter the ISDN link host route. When troubleshooting OSPF and ISDN youmight try using the "debug ip ospf lsa-generation command". If this hasnothing to do with your problem post the specific IPExpert Lab and I'll pullmine (lab book) off the shelf.HTH, Jason----- Original Message -----From: "Ahmed" To: ; ;Sent: Friday, November 28, 2003 6:43 PMSubject: RE: ospf network point-to-multipoint> If the hub (r1) and spokes (r2,and r3) are on ospf network, and hub isalso connected through ISDN to another router (r4) running rip. Now, letsay I want to redistribute ospf routes to rip domain, making!
  my hub routerASBR. r4 would obviously receive the ospf (loopb!
 ack rout

es) as /32.Because of the /32 routes the ISDN link would keep coming up.--- On Fri11/28, Brian Dennis < bdennis@internetworkexpert.com > wrote:> From: Brian Dennis [mailto: bdennis@internetworkexpert.com]To:ahmed_mustafa01@excite.com, ccielab@groupstudy.comDate: Fri, 28 Nov 200318:36:09 -0800Subject: RE: ospf network point-to-multipointI'm obviously notfamiliar with the lab product you are referring to ;-) Sowhat is the exactproblem that was created with the /32s? Brian Dennis, CCIE #2210(R&S/ISP-Dial/Security)bdennis@internetworkexpert.com Toll Free:877-224-8987Direct: 775-745-6404 (Outside the US and Canada)InternetworkExpert,Inc.http://www.InternetworkExpert.com________________________________________From: Ahmed [mailto:ahmed_mustafa01@excite.com] Sent: Friday, November 28,2003 6:25 PMTo: bdennis@internetworkexpert.com;Paul.Casey@o2.com;ccielab@groupstudy.comSubject: RE: ospf networkpoint-to-multipointBrian,In a CCIE lab environment, if one is ins!
 tructed touse point-to-multipoint,assume also advertise some loopback interfaces in ahub router, and as wellas each of the spoke routers. Then, would wou!> ld the best choice to get ridof /32 routes since they can create aproblem for the ISDN between the hubrouter and the other end connected tosome other router. I have seen theseissues when I practiced some labs fromIPexpert, but never got any goodanswer.Regards,Ahmed.--- On Fri 11/28, BrianDennis < bdennis@internetworkexpert.com > wrote:From: Brian Dennis[mailto: bdennis@internetworkexpert.com]To: Paul.Casey@o2.com,ccielab@groupstudy.comDate: Fri, 28 Nov 2003 16:28:25 -0800Subject: RE: osthen the cost from the hub to the other spoke.Brian Dennis, CCIE #2210(R&S/ISP-Dial/Security)bdennis@internetworkexpert.com Toll Free:877-224-8987Direct: 775-745-6404 (Outside the US and Canada)InternetworkExpert, Inc.http://www.InternetworkExpert.com-----Original Message-----From:Casey, Paul (6822) [mailto:Paul.Ca!
 sey@o2.com] Sent: Friday, November 28,2003 3:22 PMTo: 'ccielab!
 @groupst

ud
 y.com'Cc: 'Brian Dennis'Subject: RE: ospfnetwork point-to-multipointBrian,What are the!> possible reachability issues here. Can you give an example. h!> ow witho>> ut the /32 it would not functioncorrectly. I always,when shown an exampleunderstand much clearer, as Iassume most people do.Kindregards.Paul.> -----Original Message-----> From: Brian Dennis[SMTP:bdennis@internetworkexpert.com]> Sent: Friday, November 28, 200310:38 PM> To: navaid@rogers.com; ccielab@groupstudy.com&gtR>>routers> only see the summarized route. > > Brian Dennis, CCIE#2210 (R&S/ISP-Dial/Security)> bdennis@internetworkexpert.com >Toll Free: 877-224-8987> Direct: 775-745-6404 (Outside the US andCanada)> Internetwork Expert, Inc.>http://www.InternetworkExpert.com> > -----Original Message----->From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf!
  Of>navaid@rogers.com> Sent: Friday, November 28, 2003 2:13 PM> To: ccielab@groupstudy.com> Subject: ospf network point-to-multipoint > > Ihave ospf network point-to-multipoint configured between R1,R2 and R3.>R2 is fra!> me relay Hub and R1,R3 spoke.> In my routing table I am seeing hostroutes (/32) for frame interface of> R1,R2 and R3 but NO router forsubnet. How do I suppress host and see only> one route for subnet whichis /24.> > Thanks,> > Navaid> > _______________nd anyattachments is strictly prohibited. If you havereceived the E-mail in errorplease notify postmaster@O2.com or telephone ++ 353 16095000.*****************************************************************************************_______________________________________________________________________Please help support GroupStudy by purchasing your studymaterials from:http://shop.groupstudy.comS!
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