From: uyota oyearone (spycharlies@hotmail.com)
Date: Fri Jan 18 2008 - 10:41:51 ARST
My First post came out pretty messed up . I hope this comes out clearly. Here
it goes...
Hi Engineers; Am having problems pinging and tracing an advertised network via
BGP Confederation. Here is the basic config. let me know if am missing
something OR how i can troubleshooting this problem. ***[R3(as
65013)]s1/3-->s1/1[r2(as 65002)]s1/0-->frameRelay-->s1/0[r5(as 1)]--r3 & R2
Directly connected, r2 & R5 thru. Frame Relay***--R3#interface Ethernet0/0 ip
address 155.1.3.3 255.255.255.0!router ospf 1 router-id 3.3.3.3
log-adjacency-changes network 155.1.23.3 0.0.0.0 area 0!router bgp 65013 no
synchronization bgp log-neighbor-changes bgp confederation identifier 2 bgp
confederation peers 65002 network 155.1.3.0 mask 255.255.255.0 neighbor
155.1.23.2 remote-as 65002 no auto-summary--R2#interface Ethernet0/1 ip
address 155.1.5.5 255.255.255.0!interface Serial1/0 ip address 155.1.0.2
255.255.255.0 encapsulation frame-relay ip ospf network broadcast serial
restart-delay 0 no dce-terminal-timing-enable frame-relay map ip 155.1.0.5 205
broadcast no frame-relay inverse-arp!router ospf 1 router-id 2.2.2.2
log-adjacency-changes network 155.1.23.2 0.0.0.0 area 0!router bgp 65002 no
synchronization bgp log-neighbor-changes bgp confederation identifier 2 bgp
confederation peers 65013 network 155.1.2.0 mask 255.255.255.0 neighbor
155.1.0.5 remote-as 1 neighbor 155.1.23.3 remote-as 65013 no
auto-summary--R5#interface Ethernet0/1 ip address 155.1.5.5
255.255.255.0!interface Serial1/0 ip address 155.1.0.5 255.255.255.0
encapsulation frame-relay ip ospf network broadcast serial restart-delay 0 no
dce-terminal-timing-enable frame-relay map ip 155.1.0.2 502 broadcast no
frame-relay inverse-arp!router bgp 1 no synchronization bgp
log-neighbor-changes network 155.1.5.0 mask 255.255.255.0 neighbor 155.1.0.2
remote-as 2 no auto-summary===r5# sh ip bgp Network Next Hop
Metric LocPrf Weight Path*> 155.1.2.0/24 155.1.0.2 0
0 2 i*> 155.1.3.0/24 155.1.0.2 0 2 i*>
155.1.5.0/24 0.0.0.0 0 32768 ir5#ping 155.1.0.2
(**frame connection workin fine)Type escape sequence to abort.Sending 5,
100-byte ICMP Echos to 155.1.0.2, timeout is 2 seconds:!!!!!Success rate is
100 percent (5/5), round-trip min/avg/max = 40/68/120 ms--r5#ping 155.1.2.2 so
e0/1 (** directly connected adv. netw working fine)Type escape sequence to
abort.Sending 5, 100-byte ICMP Echos to 155.1.2.2, timeout is 2 seconds:Packet
sent with a source address of 155.1.5.5!!!!!Success rate is 100 percent (5/5),
round-trip min/avg/max = 32/64/92 ms--r5#ping 155.1.3.3 so e0/1Type escape
sequence to abort.Sending 5, 100-byte ICMP Echos tPacket sent with a source
addres.....Success rate is 0 percent (0/5) ***We would assume the problem is
btw r2 & r3***R2#sh ip bgp Network Next Hop Metric
LocPrf Weight Path*> 155.1.2.0/24 0.0.0.0 0 32768
i*> 155.1.3.0/24 155.1.23.3 0 100 0 (65013) i*>
155.1.5.0/24 155.1.0.5 0 0 1 i*> 155.1.5.0/24
155.1.0.5 0 0 1 i--r2#sh ip bgp suNeighbor V
AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd155.1.0.5 4
1 84 86 5 0 0 01:19:10 1155.1.23.3 4 65013
84 84 5 0 0 01:18:34 2 R2#ping 155.1.3.3 so fa0/0Type
escape sequence to abort.Sending 5, 100-byte ICMP Echos to 155.1.3.3, timeout
is 2 seconds:Packet sent with a source address of 155.1.2.2!!!!!Success rate
is 100 percent (5/5), round-trip min/avg/max = 24/52/84 ms*****R3#clea ip bgp
155.1.2.2Debug on R3******Mar 1 04:00:51.003: %BGP-5-ADJCHANGE: neighbor
155.1.23.2 Up*Mar 1 04:00:51.019: BGP(0): 155.1.23.2 send UPDATE (format)
155.1.3.0/24, next 155.1.23.3, metric 0, path Local*Mar 1 04:00:51.023:
BGP(0): 155.1.23.2 NEXT_HOP part 1 net 155.1.4.0/24, next155.1.13.1*Mar 1
04:00:51.027: BGP(0): 155.1.23.2 send UPDATE (format) 155.1.4.0/24, next
155.1.13.1, metric 0, path 3*Mar 1 04:00:51.047: BGP(0): 155.1.23.2 rcvd
UPDATE w/ attr: nexthop 155.1.23.2, origin i, localpref 100, metric 0, path
(65002)*Mar 1 04:00:51.055: BGP(0): 155.1.23.2 rcvd 155.1.2.0/24*Mar 1
04:00:51.063: BGP(0): 155.1.23.2 rcvd UPDATE w/ attr: nexthop 155.1.0.5,
origin i, localpref 100, metric 0, path (65002) 1*Mar 1 04:00:51.071: BGP(0):
155.1.23.2 rcvd 155.1.5.0/24******This shows R3 received the network
155.1.5.0/24. **No access list, community etc. has been configured*** What
other troubleshooting step do i take to enable me know y I'm unable to ping of
trace this network.Regards
This archive was generated by hypermail 2.1.4 : Fri Feb 01 2008 - 10:38:00 ARST