From: John (jgarrison1@austin.rr.com)
Date: Mon Sep 24 2007 - 22:19:29 ART
error R2 not R1 is connected to R5 via EBGP
----- Original Message -----
From: "John" <jgarrison1@austin.rr.com>
To: <ccielab@groupstudy.com>
Sent: Monday, September 24, 2007 7:03 PM
Subject: IWE BGP
> This is killing me I've set up this same lab a number of times. It
> appears
> that the BGP and routing tables are correct at all routers.R1 R2 R3 are in
> AS2
> R4 is in AS3 and R5 is in AS1. From R4 I cannot ping R3 or R5's
> ethernet/vlan(155.1.37.0, 155.1.5.0), but from R3 I can ping R4 and R5's
> ethernet/vlan here is the relevant info for R4
> Network Next Hop Metric LocPrf Weight Path
> *> 155.1.5.0/24 155.1.146.1 0 2 1 i
> *> 155.1.37.0/24 155.1.146.1 0 2 i
> *> 204.12.1.0 0.0.0.0 0 32768 i
> Rack1R4#sh ip route
> C 204.12.1.0/24 is directly connected, FastEthernet0/1
> 155.1.0.0/24 is subnetted, 3 subnets
> C 155.1.146.0 is directly connected, FastEthernet0/0
> B 155.1.5.0 [20/0] via 155.1.146.1, 00:37:13
> B 155.1.37.0 [20/0] via 155.1.146.1, 00:37:13
> Rack1R4#sh ip bgp 155.1.5.0
> BGP routing table entry for 155.1.5.0/24, version 2
> Paths: (1 available, best #1, table Default-IP-Routing-Table)
> Not advertised to any peer
> 2 1
> 155.1.146.1 from 155.1.146.1 (155.1.146.1)
> Origin IGP, localpref 100, valid, external, best
> Rack1R4#sh ip bgp 155.1.37.0
> BGP routing table entry for 155.1.37.0/24, version 3
> Paths: (1 available, best #1, table Default-IP-Routing-Table)
> Not advertised to any peer
> 2
> 155.1.146.1 from 155.1.146.1 (155.1.146.1)
> Origin IGP, localpref 100, valid, external, best
>
> Heres where it gets weird R4 is connected to R1 via EBGP and from R1 I can
> ping R3 and R4's ethernet /vlan(155.1.37.0, 204.12.1.0), but not
> R5's(155.1.5.0). From R1 I cannot reach 155.1.0.0 which is connecting R1
> to
> R5 via EBGP, but I can reach 155.1.23.0 which connects R3 to R2 via IBGP
> and
> EIGRP heres R1's relevant info
> Network Next Hop Metric LocPrf Weight Path
> *>i155.1.5.0/24 155.1.23.2 0 100 0 1 i
> *>i155.1.37.0/24 155.1.13.3 0 100 0 i
> *> 204.12.1.0 155.1.146.4 0 0 3 i
> Rack1R1#sh ip route
> Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external type 2
> i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS
> level-2
> ia - IS-IS inter area, * - candidate default, U - per-user static
> route
> o - ODR, P - periodic downloaded static route
>
> Gateway of last resort is not set
>
> B 204.12.1.0/24 [20/0] via 155.1.146.4, 00:53:17
> 155.1.0.0/24 is subnetted, 5 subnets
> C 155.1.146.0 is directly connected, FastEthernet0/0
> D 155.1.23.0 [90/2681856] via 155.1.13.3, 01:37:10, Serial2/1
> C 155.1.13.0 is directly connected, Serial2/1
> B 155.1.5.0 [200/0] via 155.1.23.2, 00:54:49
> B 155.1.37.0 [200/0] via 155.1.13.3, 01:30:38
> Rack1R1#sh ip bgp 155.1.5.0
> BGP routing table entry for 155.1.5.0/24, version 6
> Paths: (1 available, best #1, table Default-IP-Routing-Table)
> Advertised to update-groups:
> 1
> 1
> 155.1.23.2 (metric 2681856) from 155.1.23.2 (155.1.23.2)
> Origin IGP, metric 0, localpref 100, valid, internal, best
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Sat Oct 06 2007 - 12:01:15 ART