RIB Failure in BGP table ? [7:51720]

[shiju joseph]

Hi,

Whille playing with BGP synchronization, I am 
seeing one route learned from iBGP to get marked as 
"r>i150.0.0.0/24". Any idea what is causing this ?


R1  R2  R3  R4
Route is synchronized.


===
BGP table version is 6, local router ID is 101.0.0.1
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,
  r RIB-failure
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network  Next HopMetric LocPrf Weight Path
*> 140.0.0.0100.5.0.20 0 200 i
r>i150.0.1.0/24 100.6.0.20100  0 300 i
===

Thanks
Joseph



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Something very basic !....but not getting it right ?? [7:45490]

[shiju joseph]

Hi, 

Got a doubt regarding, how router selects a particular 
route from the routing table. I have a route to 192.168.16.192/26 
through 192.168.15.130 and 192.168.15.134. If a packet 
comes with the destination address as 192.168.16.1, what will 
happen ??. I think, since I have subnet zero possible, 192.168.16.1 
will fall into 192.168.16.0/26 network and will use the 
above mentioned route. But it is using the default route ??? 

Any idea ??..or is that I am missing something very basic ?? 

logs are attached. 
  

Appreciate your comments 
Joseph 
  
  

R1#sh ip route 
Codes: C - connected, S - static, I - IGRP, 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, E - EGP 
   i - IS-IS, 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 192.168.0.66 to network 0.0.0.0 

 192.168.15.0/30 is subnetted, 2 subnets 
C   192.168.15.132 is directly connected, Serial3/0 
C   192.168.15.128 is directly connected, Serial2/0 
O E2 20.0.0.0/8 [110/30] via 192.168.0.66, 02:35:56, Ethernet1/0 
 192.168.0.0/26 is subnetted, 2 subnets 
C   192.168.0.64 is directly connected, Ethernet1/0 
C   192.168.0.128 is directly connected, Ethernet0/0 
 192.168.16.0/26 is subnetted, 1 subnets 
D   192.168.16.192 [90/2195456] via 192.168.15.130, 00:04:05, Serial2/0 
   [90/2195456] via 192.168.15.134, 00:04:05, Serial3/0 
O192.168.1.0/24 [110/20] via 192.168.0.130, 02:35:56, Ethernet0/0 
[110/20] via 192.168.0.66, 02:35:56, Ethernet1/0 
S*   0.0.0.0/0 [1/0] via 192.168.0.66 
R1# 
R1# 
R1# 
R1#deb ip pa 
IP packet debugging is on 
R1# 
R1#ping 192.168.16.1 

Type escape sequence to abort. 
Sending 5, 100-byte ICMP Echos to 192.168.16.1, timeout is 2 seconds: 
U 
*May 30 07:34:15.475: ICMP: dst (192.168.0.65) host unreachable rcv from
192.168.0.66.U
*May 30 07:34:17.515: ICMP: dst (192.168.0.65) host unreachable rcv from
192.168.0.66.U
Success rate is 0 percent (0/5) 
R1# 
*May 30 07:34:19.555: ICMP: dst (192.168.0.65) host unreachable rcv from
192.168.0.66
R1# 
R1# 
R1# 
R1#sh run | inc sub 
ip subnet-zero 
R1# 
R1# 
R1#sh run | inc cl 
clock timezone IST 5 30 
ip classless 
R1# 
R1# 
  





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