Go CCIE Go!! - A Cisco Certified Internetwork Expert

didnt understand ur scenario quite well. Try tagging ur routes and filtering to prevent route feedback. Kabir K IbrahimB.sc CCNA CCNP CCDA CCDP MCP> Date: Wed, 11 Jun 2008 18:05:04 -0400> To: ccielab@groupstudy.com> From: 2008ccie@live.com> Subject: Redistribution> > Hi experts,> !> I am facing a routing loop in my lab scenario> if anyone help me I will really appreciate. > !> sorry for my simplified scenario because if I post my full config it will take> a long email > R2 > SW3–| R1—R4> R3 > !> SW3,R2 and R3 running EIGRP 100> R1,R2 and R3 running OSPF 1 area > R1 and R4 running OSPF area 2> !> R2 and R3 learn EIGRP external route from SW1 and EIGRPOSPF redistributed> vice versa> !> R2 and R3 learn these EIGRP redistributed OSPF routes via R1.> Based on the AD behavior (OSPF 110 EIGRP ex 170) R2 and R3 choose EIGRP> external OSPF’s routes next hope is R1 > so it cause loops> in R2 and R3 I changed the EIGRP external routes distance via “distance EIGRP> 90 95″ command, now R2 and R3’s EIGRP external routes next hope is SW3 now the> problem is solved. > !> My other problem is > R2 and R3 learn OSPF external routes via R1 from R4, and it’s redistributed> into EIGRP > now these EIGRP’s external routes with AD 95 selected as the best route> compared with OSPF’s AD 110 and its next hope is each other I mean R3 select> these routes (R4 EX OSPF routes) next hope R2 vice versa. so it causing loop.> (R2 learn those routes (R4 EX OSPF routes) via EIGRP from R3 and vice versa)> !> How to solve these problem?> I hope experts surely understand what I am trying to saying.> I will really appreciate your input.> !> Thanks> Rahul> > >