Task
=========
BGP Peering Configuration
BGP Peering Configuration
=============================
R1
config t
router bgp 100
neighbor 2.2.2.2 remote-as 200
neighbor 2.2.2.2 update-source loopback 0
neighbor 2.2.2.2 ebgp-multihop 255
neighbor 2.2.2.2 description **eBP with R2**
!
neighbor 13.1.1.3 remote-as 300
neighbor 13.1.1.3 description **eBP with R3**
!
network 10.1.1.0 mask 255.255.255.0
network 10.1.2.0 mask 255.255.255.0
network 10.1.3.0 mask 255.255.255.0
network 10.1.4.0 mask 255.255.255.0
!
R2
config t
router bgp 200
neighbor 1.1.1.1 remote-as 100
neighbor 1.1.1.1 update-source loopback 0
neighbor 1.1.1.1 ebgp-multihop 255
neighbor 1.1.1.1 description **eBP with R1**
!
neighbor 24.1.1.4 remote-as 300
neighbor 24.1.1.4 description **eBP with R4**
!
network 20.1.1.0 mask 255.255.255.0
network 20.1.2.0 mask 255.255.255.0
network 20.1.3.0 mask 255.255.255.0
network 20.1.4.0 mask 255.255.255.0
!
R3
config t
router bgp 300
neighbor 13.1.1.1 remote-as 100
neighbor 13.1.1.1 description **eBGP with R1**
!
neighbor 4.4.4.4 remote-as 300
neighbor 4.4.4.4 description **iBP with R4**
neighbor 4.4.4.4 update-source loopback 0
!
network 30.1.1.0 mask 255.255.255.0
network 30.1.2.0 mask 255.255.255.0
network 30.1.3.0 mask 255.255.255.0
network 30.1.4.0 mask 255.255.255.0
!
R4
config t
router bgp 300
neighbor 24.1.1.2 remote-as 200
neighbor 24.1.1.2 description **eBGP with R2**
!
neighbor 46.1.1.6 remote-as 600
neighbor 46.1.1.6 description **eBGP with R6**
!
neighbor 4.4.4.4 remote-as 300
neighbor 4.4.4.4 description **iBGP with R4**
neighbor 4.4.4.4 update-source loopback 0
!
network 40.1.1.0 mask 255.255.255.0
network 40.1.2.0 mask 255.255.255.0
network 40.1.3.0 mask 255.255.255.0
network 40.1.4.0 mask 255.255.255.0
!
R6
config t
router bgp 600
neighbor 46.1.1.4 remote-as 300
neighbor 46.1.1.4 description **eBGP with R4**
!
network 60.1.1.0 mask 255.255.255.0
network 60.1.2.0 mask 255.255.255.0
network 60.1.3.0 mask 255.255.255.0
network 60.1.4.0 mask 255.255.255.0
!
=================================================================================
OUTPUT
R1#sh ip bgp sum
BGP router identifier 10.1.4.1, local AS number 100
BGP table version is 21, main routing table version 21
20 network entries using 2880 bytes of memory
20 path entries using 1600 bytes of memory
5/5 BGP path/bestpath attribute entries using 680 bytes of memory
4 BGP AS-PATH entries using 96 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 5256 total bytes of memory
BGP activity 20/0 prefixes, 24/4 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
2.2.2.2 4 200 35 36 21 0 0 00:26:38 12
13.1.1.3 4 300 25 31 21 0 0 00:20:01 4
R1#
R1#
R1#sh ip bgp
BGP table version is 21, local router ID is 10.1.4.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
x best-external, a additional-path, c RIB-compressed,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
*> 10.1.1.0/24 0.0.0.0 0 32768 i
*> 10.1.2.0/24 0.0.0.0 0 32768 i
*> 10.1.3.0/24 0.0.0.0 0 32768 i
*> 10.1.4.0/24 0.0.0.0 0 32768 i
*> 20.1.1.0/24 2.2.2.2 0 0 200 i
*> 20.1.2.0/24 2.2.2.2 0 0 200 i
*> 20.1.3.0/24 2.2.2.2 0 0 200 i
*> 20.1.4.0/24 2.2.2.2 0 0 200 i
*> 30.1.1.0/24 13.1.1.3 0 0 300 i
*> 30.1.2.0/24 13.1.1.3 0 0 300 i
*> 30.1.3.0/24 13.1.1.3 0 0 300 i
*> 30.1.4.0/24 13.1.1.3 0 0 300 i
*> 40.1.1.0/24 2.2.2.2 0 200 300 i
*> 40.1.2.0/24 2.2.2.2 0 200 300 i
*> 40.1.3.0/24 2.2.2.2 0 200 300 i
*> 40.1.4.0/24 2.2.2.2 0 200 300 i
*> 60.1.1.0/24 2.2.2.2 0 200 300 600 i
*> 60.1.2.0/24 2.2.2.2 0 200 300 600 i
*> 60.1.3.0/24 2.2.2.2 0 200 300 600 i
*> 60.1.4.0/24 2.2.2.2 0 200 300 600 i
R1#
R2#sh ip bgp summary
BGP router identifier 20.1.4.1, local AS number 200
BGP table version is 29, main routing table version 29
20 network entries using 2880 bytes of memory
20 path entries using 1600 bytes of memory
5/5 BGP path/bestpath attribute entries using 680 bytes of memory
4 BGP AS-PATH entries using 96 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 5256 total bytes of memory
BGP activity 20/0 prefixes, 24/4 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
1.1.1.1 4 100 37 36 29 0 0 00:27:41 8
24.1.1.4 4 300 24 27 29 0 0 00:14:45 8
R2#
R2#
R2#sh ip bgp
BGP table version is 29, local router ID is 20.1.4.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
x best-external, a additional-path, c RIB-compressed,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
*> 10.1.1.0/24 1.1.1.1 0 0 100 i
*> 10.1.2.0/24 1.1.1.1 0 0 100 i
*> 10.1.3.0/24 1.1.1.1 0 0 100 i
*> 10.1.4.0/24 1.1.1.1 0 0 100 i
*> 20.1.1.0/24 0.0.0.0 0 32768 i
*> 20.1.2.0/24 0.0.0.0 0 32768 i
*> 20.1.3.0/24 0.0.0.0 0 32768 i
*> 20.1.4.0/24 0.0.0.0 0 32768 i
*> 30.1.1.0/24 1.1.1.1 0 100 300 i
*> 30.1.2.0/24 1.1.1.1 0 100 300 i
*> 30.1.3.0/24 1.1.1.1 0 100 300 i
*> 30.1.4.0/24 1.1.1.1 0 100 300 i
*> 40.1.1.0/24 24.1.1.4 0 0 300 i
*> 40.1.2.0/24 24.1.1.4 0 0 300 i
*> 40.1.3.0/24 24.1.1.4 0 0 300 i
*> 40.1.4.0/24 24.1.1.4 0 0 300 i
*> 60.1.1.0/24 24.1.1.4 0 300 600 i
*> 60.1.2.0/24 24.1.1.4 0 300 600 i
*> 60.1.3.0/24 24.1.1.4 0 300 600 i
*> 60.1.4.0/24 24.1.1.4 0 300 600 i
R2#
R3#sh ip bgp summary
BGP router identifier 30.1.4.1, local AS number 300
BGP table version is 17, main routing table version 17
20 network entries using 2880 bytes of memory
28 path entries using 2240 bytes of memory
7/4 BGP path/bestpath attribute entries using 952 bytes of memory
5 BGP AS-PATH entries using 120 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 6192 total bytes of memory
BGP activity 20/0 prefixes, 28/0 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
4.4.4.4 4 300 24 24 17 0 0 00:16:06 16
13.1.1.1 4 100 25 22 17 0 0 00:16:21 8
R3#
R3#sh ip bgp
BGP table version is 17, local router ID is 30.1.4.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
x best-external, a additional-path, c RIB-compressed,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
* i 10.1.1.0/24 24.1.1.2 0 100 0 200 100 i
*> 13.1.1.1 0 0 100 i
* i 10.1.2.0/24 24.1.1.2 0 100 0 200 100 i
*> 13.1.1.1 0 0 100 i
* i 10.1.3.0/24 24.1.1.2 0 100 0 200 100 i
*> 13.1.1.1 0 0 100 i
* i 10.1.4.0/24 24.1.1.2 0 100 0 200 100 i
*> 13.1.1.1 0 0 100 i
*> 20.1.1.0/24 13.1.1.1 0 100 200 i
* i 24.1.1.2 0 100 0 200 i
*> 20.1.2.0/24 13.1.1.1 0 100 200 i
* i 24.1.1.2 0 100 0 200 i
*> 20.1.3.0/24 13.1.1.1 0 100 200 i
* i 24.1.1.2 0 100 0 200 i
*> 20.1.4.0/24 13.1.1.1 0 100 200 i
* i 24.1.1.2 0 100 0 200 i
*> 30.1.1.0/24 0.0.0.0 0 32768 i
*> 30.1.2.0/24 0.0.0.0 0 32768 i
*> 30.1.3.0/24 0.0.0.0 0 32768 i
*> 30.1.4.0/24 0.0.0.0 0 32768 i
r>i 40.1.1.0/24 4.4.4.4 0 100 0 i
r>i 40.1.2.0/24 4.4.4.4 0 100 0 i
r>i 40.1.3.0/24 4.4.4.4 0 100 0 i
r>i 40.1.4.0/24 4.4.4.4 0 100 0 i
* i 60.1.1.0/24 46.1.1.6 0 100 0 600 i
* i 60.1.2.0/24 46.1.1.6 0 100 0 600 i
* i 60.1.3.0/24 46.1.1.6 0 100 0 600 i
* i 60.1.4.0/24 46.1.1.6 0 100 0 600 i
R3#
R4#sh ip bgp summary
BGP router identifier 40.1.4.1, local AS number 300
BGP table version is 25, main routing table version 25
16 network entries using 2304 bytes of memory
16 path entries using 1280 bytes of memory
4/4 BGP path/bestpath attribute entries using 544 bytes of memory
3 BGP AS-PATH entries using 72 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 4200 total bytes of memory
BGP activity 20/4 prefixes, 20/4 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
24.1.1.2 4 200 29 26 25 0 0 00:16:56 8
46.1.1.6 4 600 23 26 25 0 0 00:16:54 4
R4#
R4#
R4#sh ip bgp
BGP table version is 21, local router ID is 40.1.4.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
x best-external, a additional-path, c RIB-compressed,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
*> 10.1.1.0/24 24.1.1.2 0 200 100 i
* i 13.1.1.1 0 100 0 100 i
*> 10.1.2.0/24 24.1.1.2 0 200 100 i
* i 13.1.1.1 0 100 0 100 i
*> 10.1.3.0/24 24.1.1.2 0 200 100 i
* i 13.1.1.1 0 100 0 100 i
*> 10.1.4.0/24 24.1.1.2 0 200 100 i
* i 13.1.1.1 0 100 0 100 i
* i 20.1.1.0/24 13.1.1.1 0 100 0 100 200 i
*> 24.1.1.2 0 0 200 i
* i 20.1.2.0/24 13.1.1.1 0 100 0 100 200 i
*> 24.1.1.2 0 0 200 i
* i 20.1.3.0/24 13.1.1.1 0 100 0 100 200 i
*> 24.1.1.2 0 0 200 i
* i 20.1.4.0/24 13.1.1.1 0 100 0 100 200 i
*> 24.1.1.2 0 0 200 i
r>i 30.1.1.0/24 3.3.3.3 0 100 0 i
r>i 30.1.2.0/24 3.3.3.3 0 100 0 i
r>i 30.1.3.0/24 3.3.3.3 0 100 0 i
r>i 30.1.4.0/24 3.3.3.3 0 100 0 i
*> 40.1.1.0/24 0.0.0.0 0 32768 i
*> 40.1.2.0/24 0.0.0.0 0 32768 i
*> 40.1.3.0/24 0.0.0.0 0 32768 i
*> 40.1.4.0/24 0.0.0.0 0 32768 i
*> 60.1.1.0/24 46.1.1.6 0 0 600 i
*> 60.1.2.0/24 46.1.1.6 0 0 600 i
*> 60.1.3.0/24 46.1.1.6 0 0 600 i
*> 60.1.4.0/24 46.1.1.6 0 0 600 i
R4#
R5#sh ip bgp summary
% BGP not active
R6#sh ip bgp summary
BGP router identifier 60.1.4.1, local AS number 600
BGP table version is 33, main routing table version 33
16 network entries using 2304 bytes of memory
16 path entries using 1280 bytes of memory
4/4 BGP path/bestpath attribute entries using 544 bytes of memory
3 BGP AS-PATH entries using 72 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 4200 total bytes of memory
BGP activity 24/8 prefixes, 24/8 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
46.1.1.4 4 300 27 24 33 0 0 00:17:59 12
R6#
R6#sh ip bgp
BGP table version is 33, local router ID is 60.1.4.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
x best-external, a additional-path, c RIB-compressed,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
*> 10.1.1.0/24 46.1.1.4 0 300 200 100 i
*> 10.1.2.0/24 46.1.1.4 0 300 200 100 i
*> 10.1.3.0/24 46.1.1.4 0 300 200 100 i
*> 10.1.4.0/24 46.1.1.4 0 300 200 100 i
*> 20.1.1.0/24 46.1.1.4 0 300 200 i
*> 20.1.2.0/24 46.1.1.4 0 300 200 i
*> 20.1.3.0/24 46.1.1.4 0 300 200 i
*> 20.1.4.0/24 46.1.1.4 0 300 200 i
*> 40.1.1.0/24 46.1.1.4 0 0 300 i
*> 40.1.2.0/24 46.1.1.4 0 0 300 i
*> 40.1.3.0/24 46.1.1.4 0 0 300 i
*> 40.1.4.0/24 46.1.1.4 0 0 300 i
*> 60.1.1.0/24 0.0.0.0 0 32768 i
*> 60.1.2.0/24 0.0.0.0 0 32768 i
*> 60.1.3.0/24 0.0.0.0 0 32768 i
*> 60.1.4.0/24 0.0.0.0 0 32768 i
R6#
Thanks for Reading
amartechstuff
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