On Tue, 21 Aug 2001, Arun Upadhyay wrote: > If the clients are on different layer 3 network, > then that should be configured as point to point > network. If they are on same network then they can use > point to multipoint. Well, not really. In practice its fine to put bridged customers on a single multipoint and use different layer3 networks. Why would you do this? Well, in early DSL rollouts, things on Cisco routers like IDB's, BVI's, etc were limited resources..........some routers could only do 300 even. So you would lump many DSL customers in on one multipoint interface. > I think in the given senerio, it should be configured > as point to point network. Yes, ideally, but its sort of like a typical Cisco or CCIE type problem, where the configuration is valid, but doesn't necessarly make sense or would be the best way to do it. Its just to demonstrate the issue or port blocking on a bridge. > > Arun > > --- Brian wrote: > > No one has gotten this problem yet. Remeber, making > > it so the clients are > > on differnt layer 3 networks works, but when they > > are on the same it > > doesn't. What mechanics are involved in how the > > packet will be treated > > different if on the same network vs. different > > networks. > > > > I'll still leave the answer open, someone will get > > this. > > > > Brian > > > > > > On Tue, 21 Aug 2001, Wayne Wenthin wrote: > > > > > To me this looks very similar to bridging with > > DSL. Since you cannot > > > receive the ARP the router must proxy this. > > > > > > At 09:52 AM 8/21/2001, McCallum, Robert wrote: > > > >you can correct me here if I am wrong but split > > horizon is only used in > > > >distance vector protocols???? NO??? > > > > > > > >The problem here without giving the answer is > > that a router is expected to > > > >pass a packet out of an interface which is on its > > own subnet !! Doesn't > > > >compute! What is the routing protocol being used > > to route ip?? This is > > > >where the answer will lye > > > > > > > >-----Original Message----- > > > >From: Donald B Johnson jr > > [mailto:[EMAIL PROTECTED]] > > > >Sent: 21 August 2001 17:06 > > > >To: [EMAIL PROTECTED] > > > >Subject: Re: CHALLENGE PROBLEM (was Re: For FR > > Grus.... [7:16635]) > > > >[7:16681] > > > > > > > > > > > >I don't think bridge will work on this network > > because of split horizon. > > > > > > > > > > > > > > > > > > > >----- Original Message ----- > > > >From: "Brian" > > > >To: > > > >Sent: Tuesday, August 21, 2001 7:51 AM > > > >Subject: CHALLENGE PROBLEM (was Re: For FR > > Grus.... [7:16635]) [7:16659] > > > > > > > > > > > > > On Tue, 21 Aug 2001, Cisco Lover wrote: > > > > > > > > > > > Hi Guys.. > > > > > > > > > > > > Come with some New Queston.. > > > > > > > > > > hmm, ok, so your looking for some challenging > > questions? Ok, I will > > post > > > > > one, its got FR in it. First I'll post the > > problem, followed by the > > > > > config: > > > > > > > > > > THE PROBLEM > > > > > =========== > > > > > Users on DLCI's 200, 224, 201, 225 cannot > > communicate to eachother. > > They > > > > > can talk just fine to the rest of the network, > > but no packets can pass > > > > > between them. Later discovery reveals that so > > long as they are on > > > > > different layer 3 network addressing, > > communcation can occur, but if > > they > > > > > are on the same network, such as 192.168.3.0, > > then they cannot > > > communicate > > > > > > > > > > What is the problem? I will reply to let > > everyone know who got the > > > > > correct answer. > > > > > > > > > > Below is the configuration: > > > > > > > > > > ! > > > > > version 11.3 > > > > > ! > > > > > interface Ethernet2/0 > > > > > ip address 192.168.1.242 255.255.255.0 > > > > > ! > > > > > interface Serial4/0 > > > > > no ip address > > > > > encapsulation frame-relay IETF > > > > > keepalive 15 > > > > > frame-relay map bridge 200 broadcast IETF > > > > > frame-relay map bridge 224 broadcast IETF > > > > > frame-relay map bridge 201 broadcast IETF > > > > > frame-relay map bridge 225 broadcast IETF > > > > > frame-relay lmi-type ansi > > > > > bridge-group 1 > > > > > ! > > > > > interface BVI1 > > > > > ip address 192.168.3.242 255.255.255.0 > > secondary > > > > > ip address 192.168.2.242 255.255.255.0 > > > > > > > > > > ! > > > > > router igrp 1 > > > > > network 192.1.0.0 > > > > > network 192.2.0.0 > > > > > network 193.3.0.0 > > > > > ! > > > > > ip classless > > > > > ! > > > > > bridge irb > > > > > bridge 1 protocol ieee > > > > > bridge 1 route ip > > > > > ! > > > > > > > > > > > > > > > > > > > > > > For eg, > > > > > > our FR switch is setup for Full mesh,But out > > network is setup as Hub > > & > > > > > Spoke > > > > > > FAQ, list archives, and subscription info: > > > > > http://www.groupstudy.com/list/cisco.html > > > > > > Report misconduct and Nondisclosure > > violations to > > [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > > ----------------------------------------------- > > > > > I'm buying / selling used CISCO gear!! > > > > > email me for a quote > > > > > > > > > > Brian Feeny, CCIE #8036 Scarlett Parria > > > > > [EMAIL PROTECTED] [EMAIL PROTECTED] > > > > > 318-213-4709 318-213-4701 > > > > > > > > > > Netjam, LLC http://www.netjam.net > > > > > 333 Texas St. VISA/MC/AMEX/COD > > > > > Suite 1401 30 day warranty > > > > > Shreveport, LA 71101 Cisco Channel Partner > > > > > toll free: 866-2NETJAM > > > > > phone: 318-212-0245 > > > > > fax: 318-212-0246 > > I'm buying / selling used CISCO gear!! > > email me for a quote > > > > Brian Feeny, CCIE #8036 Scarlett Parria > > [EMAIL PROTECTED] [EMAIL PROTECTED] > > 318-213-4709 318-213-4701 > > > > Netjam, LLC http://www.netjam.net > > 333 Texas St. VISA/MC/AMEX/COD > > Suite 1401 30 day warranty > > Shreveport, LA 71101 Cisco Channel Partner > > toll free: 866-2NETJAM > > phone: 318-212-0245 > > fax: 318-212-0246 > [EMAIL PROTECTED] > > > ===== > Arun Upadhyay > SE Engineering > MCSE CCNA CNA > > __________________________________________________ > Do You Yahoo!? > Get personalized email addresses from Yahoo! Mail > http://personal.mail.yahoo.com/ I'm buying / selling used CISCO gear!! email me for a quote Brian Feeny, CCIE #8036 Scarlett Parria [EMAIL PROTECTED] [EMAIL PROTECTED] 318-213-4709 318-213-4701 Netjam, LLC http://www.netjam.net 333 Texas St. VISA/MC/AMEX/COD Suite 1401 30 day warranty Shreveport, LA 71101 Cisco Channel Partner toll free: 866-2NETJAM phone: 318-212-0245 fax: 318-212-0246 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16728&t=16728 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
