From: CTAlex405c@aol.com
Date: Wed Oct 02 2002 - 08:55:13 GMT-3
I appreciated your looking at this problem and asking for more info. Below is the original question, routing table for r2, the bgp neighbors, the config of r2 and the config of r7 which is where the routes are originating.
ORIGINAL QUESTION
r2 is to advertize supernet 128.200.0.0
In r2 I have
router bgp 2001
no synchronization
aggregate-address 128.200.0.0 255.252.0.0 summary-only
In r5 I get:
128.200.0.0/24 is subnetted, 1 subnets
D EX 128.200.1.0 [170/2172416] via 140.100.4.1, 00:00:29, Serial1/0
128.201.0.0/24 is subnetted, 1 subnets
D EX 128.201.1.0 [170/2172416] via 140.100.4.1, 00:00:30, Serial1/0
128.202.0.0/24 is subnetted, 1 subnets
D EX 128.202.1.0 [170/2172416] via 140.100.4.1, 00:00:30, Serial1/0
Why don't I get one 128.200.0.0/14 route?
MORE INFO
r2#i
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, * - candidate default
U - per-user static route, o - ODR
Gateway of last resort is not set
O E2 199.199.10.0/24 [110/20] via 140.100.1.1, 13:10:02, Serial0
O E2 199.199.9.0/24 [110/20] via 140.100.1.1, 13:10:03, Serial0
O E2 199.199.8.0/24 [110/20] via 140.100.1.1, 13:10:03, Serial0
C 192.128.128.0/24 is directly connected, Ethernet0
140.100.0.0/16 is variably subnetted, 12 subnets, 5 masks
C 140.100.100.2/32 is directly connected, Loopback0
O E2 140.100.10.0/24 [110/20] via 140.100.1.1, 13:10:03, Serial0
O E2 140.100.13.0/24 [110/15] via 140.100.1.3, 13:10:03, Serial0
O E2 140.100.14.0/24 [110/20] via 140.100.1.1, 13:10:03, Serial0
O IA 140.100.14.0/27 [110/1632] via 140.100.1.1, 13:10:04, Serial0
D 140.100.15.0/28 [90/2185984] via 140.100.4.2, 13:10:04, Serial1
D 140.100.15.0/24 is a summary, 13:10:04, Null0
C 140.100.1.0/24 is directly connected, Serial0
O 140.100.2.0/24 [110/1626] via 140.100.1.1, 13:10:04, Serial0
D 140.100.4.0/24 is a summary, 13:10:04, Null0
C 140.100.4.0/30 is directly connected, Serial1
O E2 140.100.16.0/24 [110/15] via 140.100.1.3, 13:10:04, Serial0
172.16.0.0/24 is subnetted, 1 subnets
B 172.16.1.0 [20/75] via 140.100.4.2, 00:25:50
O E2 199.199.3.0/24 [110/20] via 140.100.1.1, 13:10:04, Serial0
128.200.0.0/16 is variably subnetted, 2 subnets, 2 masks
B 128.200.0.0/16 [20/0] via 192.128.128.1, 12:43:02
R 128.200.1.0/24 [120/1] via 192.128.128.1, 00:00:02, Ethernet0
128.201.0.0/16 is variably subnetted, 2 subnets, 2 masks
R 128.201.1.0/24 [120/1] via 192.128.128.1, 00:00:02, Ethernet0
B 128.201.0.0/16 [20/0] via 192.128.128.1, 12:43:03
128.202.0.0/16 is variably subnetted, 2 subnets, 2 masks
B 128.202.0.0/16 [20/0] via 192.128.128.1, 12:43:03
R 128.202.1.0/24 [120/1] via 192.128.128.1, 00:00:02, Ethernet0
O E2 199.199.2.0/24 [110/20] via 140.100.1.1, 13:10:05, Serial0
O E2 10.0.0.0/8 [110/15] via 140.100.1.3, 13:10:05, Serial0
O E2 199.199.1.0/24 [110/20] via 140.100.1.1, 13:10:05, Serial0
O E2 199.199.7.0/24 [110/20] via 140.100.1.1, 13:10:05, Serial0
O E2 199.199.6.0/24 [110/20] via 140.100.1.1, 13:10:05, Serial0
O E2 199.199.5.0/24 [110/20] via 140.100.1.1, 13:10:05, Serial0
O E2 199.199.4.0/24 [110/20] via 140.100.1.1, 13:10:05, Serial0
B 128.200.0.0/14 [200/0] via 0.0.0.0, 12:43:03, Null0
D 151.100.0.0/15 [90/2297856] via 140.100.4.2, 13:10:05, Serial1
r2#
r2#show ip bgp neig
BGP neighbor is 140.100.1.1, remote AS 2001, internal link
Index 1, Offset 0, Mask 0x2
BGP version 4, remote router ID 140.100.10.1
BGP state = Established, table version = 28, up for 3d19h
Last read 00:00:58, hold time is 180, keepalive interval is 60 seconds
Minimum time between advertisement runs is 5 seconds
Received 5499 messages, 0 notifications, 0 in queue
Sent 5511 messages, 0 notifications, 0 in queue
Connections established 1; dropped 0
Last reset never
No. of prefix received 0
Connection state is ESTAB, I/O status: 1, unread input bytes: 0
Local host: 140.100.1.2, Local port: 11000
Foreign host: 140.100.1.1, Foreign port: 179
Enqueued packets for retransmit: 0, input: 0 mis-ordered: 0 (0 bytes)
Event Timers (current time is 0x4055A5B4):
Timer Starts Wakeups Next
Retrans 5512 0 0x0
TimeWait 0 0 0x0
AckHold 5499 5185 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 0 0 0x0
DeadWait 0 0 0x0
iss: 911422975 snduna: 911528061 sndnxt: 911528061 sndwnd: 15234
irs: 337502906 rcvnxt: 337607433 rcvwnd: 15738 delrcvwnd: 646
SRTT: 309 ms, RTTO: 750 ms, RTV: 66 ms, KRTT: 0 ms
minRTT: 20 ms, maxRTT: 600 ms, ACK hold: 200 ms
Flags: higher precedence, nagle
Datagrams (max data segment is 1460 bytes):
Rcvd: 10737 (out of order: 0), with data: 5500, total data bytes: 104526
Sent: 10857 (retransmit: 0), with data: 5511, total data bytes: 105085
BGP neighbor is 140.100.4.2, remote AS 2011, external link
Index 2, Offset 0, Mask 0x4
BGP version 4, remote router ID 172.16.1.1
BGP state = Established, table version = 28, up for 00:09:51
Last read 00:04:52, hold time is 900, keepalive interval is 300 seconds
Configured hold time is 900, keepalive interval is 300 seconds
Minimum time between advertisement runs is 30 seconds
Received 4873 messages, 0 notifications, 0 in queue
Sent 4878 messages, 0 notifications, 0 in queue
Connections established 3; dropped 2
Last reset 00:10:18, due to : Peer closing down the session
No. of prefix received 1
Connection state is ESTAB, I/O status: 1, unread input bytes: 0
Local host: 140.100.4.1, Local port: 179
Foreign host: 140.100.4.2, Foreign port: 11009
Enqueued packets for retransmit: 0, input: 0 mis-ordered: 0 (0 bytes)
Event Timers (current time is 0x4055B094):
Timer Starts Wakeups Next
Retrans 5 0 0x0
TimeWait 0 0 0x0
AckHold 5 3 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 0 0 0x0
DeadWait 0 0 0x0
iss: 3730750971 snduna: 3730751114 sndnxt: 3730751114 sndwnd: 16242
irs: 2617770765 rcvnxt: 2617770904 rcvwnd: 16246 delrcvwnd: 138
SRTT: 659 ms, RTTO: 4406 ms, RTV: 1544 ms, KRTT: 0 ms
minRTT: 4 ms, maxRTT: 300 ms, ACK hold: 200 ms
Flags: passive open, nagle, gen tcbs
Datagrams (max data segment is 1460 bytes):
Rcvd: 8 (out of order: 0), with data: 5, total data bytes: 138
Sent: 8 (retransmit: 0), with data: 4, total data bytes: 142
BGP neighbor is 192.128.128.1, remote AS 2010, external link
Index 3, Offset 0, Mask 0x8
BGP version 4, remote router ID 192.168.1.1
BGP state = Established, table version = 28, up for 12:27:06
Last read 00:00:06, hold time is 180, keepalive interval is 60 seconds
Minimum time between advertisement runs is 30 seconds
Received 5398 messages, 0 notifications, 0 in queue
Sent 5397 messages, 0 notifications, 0 in queue
Connections established 2; dropped 1
Last reset 12:27:44, due to : Peer closing down the session
No. of prefix received 3
Connection state is ESTAB, I/O status: 1, unread input bytes: 0
Local host: 192.128.128.2, Local port: 179
Foreign host: 192.128.128.1, Foreign port: 11056
Enqueued packets for retransmit: 0, input: 0 mis-ordered: 0 (0 bytes)
Event Timers (current time is 0x4055B810):
Timer Starts Wakeups Next
Retrans 757 0 0x0
TimeWait 0 0 0x0
AckHold 752 611 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 0 0 0x0
DeadWait 0 0 0x0
iss: 2438632051 snduna: 2438646563 sndnxt: 2438646563 sndwnd: 15037
irs: 1411896448 rcvnxt: 1411910801 rcvwnd: 15206 delrcvwnd: 1178
SRTT: 300 ms, RTTO: 607 ms, RTV: 3 ms, KRTT: 0 ms
minRTT: 4 ms, maxRTT: 512 ms, ACK hold: 200 ms
Flags: passive open, nagle, gen tcbs
Datagrams (max data segment is 1460 bytes):
Rcvd: 1247 (out of order: 0), with data: 752, total data bytes: 14352
Sent: 1384 (retransmit: 0), with data: 756, total data bytes: 14511
r2#
r2 config
r2#r
Building configuration...
Current configuration:
!
version 11.3
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname r2
!
enable password radnor
!
ip subnet-zero
no ip domain-lookup
!
controller T1 0
clock source line primary
!
controller T1 1
clock source line secondary
!
!
interface Loopback0
ip address 140.100.100.2 255.255.255.255
!
interface Ethernet0
ip address 192.128.128.2 255.255.255.0
ip rip send version 2
ip rip receive version 2
!
interface Serial0
ip address 140.100.1.2 255.255.255.0
ip access-group 101 in
encapsulation frame-relay
ip ospf hello-interval 60
ip ospf priority 0
no ip mroute-cache
bandwidth 64
frame-relay map ip 140.100.1.1 111 broadcast
frame-relay map ip 140.100.1.3 111 broadcast
frame-relay lmi-type ansi
!
interface Serial1
ip address 140.100.4.1 255.255.255.252
ip summary-address eigrp 2020 140.100.4.0 255.255.255.0
ip summary-address eigrp 2020 140.100.15.0 255.255.255.0
bandwidth 1544
!
router eigrp 2020
redistribute ospf 23 metric 1544 10 255 1 1500
redistribute rip metric 1544 10 255 1 1500
network 140.100.0.0
no auto-summary
!
router ospf 23
redistribute rip metric 2 subnets
redistribute eigrp 2020 metric 200 subnets
network 140.100.1.0 0.0.0.255 area 0
!
router rip
version 2
redistribute ospf 23 metric 1
redistribute eigrp 2020 metric 1
network 192.128.128.0
no auto-summary
!
router bgp 2001
no synchronization
aggregate-address 128.200.0.0 255.252.0.0 summary-only
neighbor 140.100.1.1 remote-as 2001
neighbor 140.100.4.2 remote-as 2011
neighbor 140.100.4.2 timers 300 900
neighbor 192.128.128.1 remote-as 2010
no auto-summary
!
ip classless
!
logging buffered 10000 debugging
access-list 101 deny ip 140.100.14.0 0.0.0.63 192.128.128.0 0.0.0.255
access-list 101 permit ip any any
!
tftp-server flash c5200-j-l.113-11a
alias exec i show ip route
alias exec r show run
alias exec c config t
alias exec u undebug all
alias exec s show ip int brief
alias exec b show ip bgp sum
!
line con 0
exec-timeout 0 0
logging synchronous
escape-character 27
line 1 24
line aux 0
line vty 0 4
password kpmg
login
!
end
r2#
r7 config
r7#r
Building configuration...
Current configuration : 1805 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname r7
!
enable secret 5 $1$Wtsy$vLHhX9Il85Dx3lNTivSjT.
enable password pa
!
ip subnet-zero
no ip domain-lookup
ip host r1 2001 192.168.1.1
ip host r2 2002 192.168.1.1
ip host r3 2003 192.168.1.1
ip host r4 2004 192.168.1.1
ip host r5 2005 192.168.1.1
ip host r6 2006 192.168.1.1
ip host r7 2007 192.168.1.1
ip host r8 2008 192.168.1.1
ip host frame 2008 192.168.1.1
ip host cat 2007 192.168.1.1
!
!
!
!
interface Loopback0
ip address 192.168.1.1 255.255.255.255
!
interface Loopback20
ip address 128.200.1.1 255.255.255.0
!
interface Loopback21
ip address 128.201.1.1 255.255.255.0
!
interface Loopback22
ip address 128.202.1.1 255.255.255.0
!
interface Ethernet0
ip address 192.128.128.1 255.255.255.0
ip rip send version 2
ip rip receive version 2
ntp broadcast client
no mop enabled
!
interface Serial0
no ip address
shutdown
!
interface Serial1
no ip address
shutdown
!
router rip
version 2
network 128.200.0.0
network 128.201.0.0
network 128.202.0.0
network 192.128.128.0
no auto-summary
!
router bgp 2010
bgp log-neighbor-changes
network 128.200.0.0
network 128.201.0.0
network 128.202.0.0
neighbor 192.128.128.2 remote-as 2001
neighbor 192.128.128.2 ebgp-multihop 24
!
ip classless
ip http server
ip pim bidir-enable
!
!
banner motd ^CC This is a private system and illegal to use. ^C
alias exec i show ip route
alias exec r show run
alias exec c config t
alias exec u undebug all
alias exec s show ip int brief
alias exec b show ip bgp sum
!
line con 0
line 1 8
flush-at-activation
no exec
transport input all
flowcontrol hardware
line aux 0
password kpmg
login
modem Dialin
stopbits 1
flowcontrol hardware
line vty 0 4
password kpmg
login
!
end
r7#
This archive was generated by hypermail 2.1.4 : Tue Nov 05 2002 - 08:35:37 GMT-3