From: Ludwig Morales (lud.morales@xxxxxxxxxxxxxx)
Date: Sun Jun 02 2002 - 20:03:51 GMT-3
Pie ChartsHi everyone!
Can someone digest the BGP synchronization rule for me and explain it, for
what i thought BGP would not put a route in the routing table until it was
learn from an IGP if sync was on, well this router has 2 IBGP sessions with
border routers, 1 border router advertises the netwotk 192.168.100.0/24 (you
can see that i learn this router int the BGP table) so i made a static route
and redistribute it in OSPF, no i have a route to 192.168.100.0/24 in my
routing table but still BGP would not put it's route in the table, what am i
doing wrong here? how do i make the IBGP peering routers learn the BGP
routes without actually redistributing IGP?
Regards,
Ludwig
!
!
interface Loopback0
ip address 1.1.1.1 255.255.255.0
!
interface Ethernet0
no ip address
shutdown
!
interface Serial0
no ip address
encapsulation frame-relay
frame-relay lmi-type cisco
!
interface Serial0.1 point-to-point
ip address 192.168.1.222 255.255.255.252
frame-relay interface-dlci 108
!
interface Serial0.2 point-to-point
ip address 192.168.1.198 255.255.255.252
frame-relay interface-dlci 107
!
interface Serial1
no ip address
!
router ospf 100
log-adjacency-changes
redistribute static subnets
network 192.168.1.0 0.0.0.255 area 0
!
router bgp 100
bgp log-neighbor-changes
network 192.168.1.196 mask 255.255.255.252
network 192.168.1.220 mask 255.255.255.252
neighbor 192.168.1.197 remote-as 100
neighbor 192.168.1.221 remote-as 100
!
ip classless
ip route 192.168.100.0 255.255.255.0 192.168.1.221
ip http server
!
!
alias exec f show running-config | begin
!
line con 0
line 1 7
modem Host
transport input all
stopbits 1
line 8
modem InOut
transport input all
stopbits 1
line aux 0
line vty 0 4
login
!
end
R1#sh ip ro
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 intea
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is not set
1.0.0.0/24 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Loopback0
192.168.1.0/30 is subnetted, 3 subnets
O 192.168.1.224 [110/74] via 192.168.1.221, 00:02:28, Serial0.1
C 192.168.1.196 is directly connected, Serial0.2
C 192.168.1.220 is directly connected, Serial0.1
S 192.168.100.0/24 [1/0] via 192.168.1.221
R1#sh ip bgp
BGP table version is 5, local router ID is 1.1.1.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - intl
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 192.168.1.196/30 0.0.0.0 0 32768 i
* i192.168.1.204/30 192.168.1.197 0 100 0 i
* i192.168.1.208/30 192.168.1.221 0 100 0 i
*> 192.168.1.220/30 0.0.0.0 0 32768 i
*>i192.168.1.224/30 192.168.1.221 0 100 0 i
*>i192.168.100.0 192.168.1.225 0 100 0 200 i
* i192.168.200.0 192.168.1.225 0 100 0 200 i
R1#
This archive was generated by hypermail 2.1.4 : Tue Jul 02 2002 - 08:12:21 GMT-3