Lab it up :-)
-- Marko Milivojevic - CCIE #18427 Senior Technical Instructor - IPexpert FREE CCIE training: http://bit.ly/vLecture Mailto: markom_at_ipexpert.com Telephone: +1.810.326.1444 Web: http://www.ipexpert.com/ On Fri, Oct 22, 2010 at 18:43, Tom Solski <tom.solski_at_gmail.com> wrote: > Thanks for answers but what is the answer to the main question: > "R1 ONLY gets a single default route, the question is WHY?" > > > On Fri, Oct 22, 2010 at 2:25 PM, Narbik Kocharians <narbikk_at_gmail.com> wrote: >> *One of the students told me that he did not see the second puzzle, so i am >> posting my original post for the second one.* >> >> The reason I asked to Unicast was so one student will not see the answer >> from another student, this forces some people to lab the scenario and think. >> >> >> *Now that I have your attention*, here are some solutions to the problem, I >> am sure there are more ways, and please feel free to add to the list. >> >> 1. Filter all RIPs updates coming from R2 on R3 fa0/0 interface with >> access-list/prefix-list/route-map and vice versa. >> 2. Filter the default route from R2 on R3 and vice versa. >> 3. Instead of filtering, you could also use the distance command and set it >> to 255. >> 4. Filter default from R2 on R3, and R3 to R2 using an "Offset-list in". >> 5. Configure passive-interface on the F0/0 interfaces of R2 and R3, and then >> on Both routers configure a "Neighbor R1". >> 6. Configure the ports that R2 and R3 are connected as "swi Protect". >> 7. Configure Private Vlan; configuring the F0/0 interface of R2 and R3 in >> Isolated, and the F0/0 interface of R1 in primary. >> 8. Mac ACLs or an IP access-list and a Vlan Access-map that denies the two >> routers from communicating. >> 9. Configuring an MQC that matches on the destination-address MAC and drops >> that traffic in the policy-map that's assigned to the F0/0 interface of R2 >> and Vice versa. >> 10. Dropping the traffic by filtering the MAC on the switchports. >> 11. Put R2 and R3 in different subnets and do a "no validate-update source" >> on R1. >> >> >> *Now could you imagine the following scenario*: you are in a CCIE lab, and >> you just finished the troubleshooting section, so you feel like Mike Tyson >> because you did well, but the first question in the configuration section is >> the following: >> >> R1 is running RIPv2. >> R6 is also running RIPv2. >> There are bunch of routers between R1 and R6 running OSPF or whatever >> routing protocol that turns you on. >> >> I want R6 to get all R1 s RIP routes. >> >> Do not use redistribution, AToM, IPnIP or GRE tunnels to accomplish this. >> Come up with 2 solutions. Common unicast me the solution.. >> >> >> There is a reason I am doing this, trust me B . >> >> -- >> Narbik Kocharians >> CCSI#30832, CCIE# 12410 (R&S, SP, Security) >> www.MicronicsTraining.com >> Sr. Technical Instructor >> YES! We take Cisco Learning Credits! >> Training And Remote Racks available >> >> >> Blogs and organic groups at http://www.ccie.net >> >> _______________________________________________________________________ >> Subscription information may be found at: >> http://www.groupstudy.com/list/CCIELab.html > > > Blogs and organic groups at http://www.ccie.net > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html Blogs and organic groups at http://www.ccie.netReceived on Fri Oct 22 2010 - 18:46:50 ART
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