From: Aaron DuShey (aaron.dushey@xxxxxxxxxxxxxxxxxxxxx)
Date: Sat Sep 09 2000 - 01:32:02 GMT-3
Couple questions here
1st of all, whats the difference between these 3 BGP related commands
network 0.0.0.0
neighbor x.x.x.x default originate
default-information originate
2nd-Why isn't the BGP default 0.0.0.0 making it into the routing table?
Here are r2 + R7's configurations
thanks!
BGP table version is 4, local router ID is 200.200.100.1
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 172.168.0.0 137.20.10.70 170 0 3 i
r1#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 137.20.25.2 to network 0.0.0.0
200.200.200.0/32 is subnetted, 1 subnets
O IA 200.200.200.1 [110/75] via 137.20.25.2, 00:48:26, Ethernet0/0
137.20.0.0/16 is variably subnetted, 11 subnets, 5 masks
O E1 137.20.200.16/28 [110/110] via 137.20.25.2, 00:48:26, Ethernet0/0
O IA 137.20.224.0/20 [110/1572] via 137.20.25.2, 00:48:26, Ethernet0/0
O IA 137.20.30.0/24 [110/80] via 137.20.25.2, 00:48:26, Ethernet0/0
C 137.20.25.0/24 is directly connected, Ethernet0/0
O IA 137.20.20.0/24 [110/84] via 137.20.25.2, 00:48:26, Ethernet0/0
C 137.20.10.0/24 is directly connected, FastEthernet1/0
O IA 137.20.60.1/32 [110/21] via 137.20.25.2, 00:48:26, Ethernet0/0
O E1 137.20.40.16/28 [110/110] via 137.20.25.2, 00:48:26, Ethernet0/0
O IA 137.20.33.0/24 [110/75] via 137.20.25.2, 00:48:26, Ethernet0/0
O IA 137.20.100.32/27 [110/74] via 137.20.25.2, 00:48:26, Ethernet0/0
O IA 137.20.64.0/20 [110/20] via 137.20.25.2, 00:48:26, Ethernet0/0
C 200.200.100.0/24 is directly connected, Loopback0
B 172.168.0.0/16 [20/170] via 137.20.10.70, 00:14:26
O*E2 0.0.0.0/0 [110/20] via 137.20.25.2, 00:48:27, Ethernet0/0
r1#r
Building configuration...
hostname r1
!
logging buffered 4096 debugging
!
interface Loopback0
ip address 200.200.100.1 255.255.255.0
no ip directed-broadcast
ip ospf interface-retry 0
!
interface Ethernet0/0
ip address 137.20.25.1 255.255.255.0
no ip directed-broadcast
ip ospf interface-retry 0
!
interface FastEthernet1/0
ip address 137.20.10.1 255.255.255.0
no ip directed-broadcast
speed 10
!
router ospf 1
network 137.20.25.1 0.0.0.0 area 2
network 200.200.100.1 0.0.0.0 area 2
!
router bgp 2
no synchronization
neighbor 137.20.10.70 remote-as 3
neighbor 137.20.10.70 update-source Loopback0
neighbor 137.20.10.70 default-originate
neighbor 137.20.64.6 remote-as 2
neighbor 137.20.64.6 route-reflector-client
neighbor 137.20.100.33 remote-as 2
neighbor 137.20.100.33 route-reflector-client
no auto-summary
!
ip classless
end
r1#
r7#
BGP table version is 2, local router ID is 172.168.70.1
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
* 0.0.0.0 200.200.100.1 0 2 i
*> 172.168.0.0 0.0.0.0 0 32768 i
r7#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
137.20.0.0/24 is subnetted, 1 subnets
C 137.20.10.0 is directly connected, Ethernet2/0
172.168.0.0/24 is subnetted, 1 subnets
C 172.168.70.0 is directly connected, Loopback0
r7#r
Building configuration...
Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname r7
!
interface Loopback0
ip address 172.168.70.1 255.255.255.0
no ip directed-broadcast
!
interface Ethernet2/0
ip address 137.20.10.70 255.255.255.0
no ip directed-broadcast
!
router bgp 3
no synchronization
network 172.168.0.0
neighbor 200.200.100.1 remote-as 2
neighbor 200.200.100.1 ebgp-multihop 2
neighbor 200.200.100.1 route-map SET_MED out
default-metric 170
!
ip local policy route-map bgp_ebgp
ip classless
!
access-list 100 permit ip any host 200.200.100.1 log
route-map bgp_ebgp permit 10
match ip address 100
set ip next-hop 137.20.10.1
!
route-map SET_MED permit 10
set metric 170
!
r7#
Aaron DuShey
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