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GNS3 2.2.11 Series(2020) Part 20 – BGP setup

/////NOTE/////

SCENARIO:
1. Setup interfaces.
2. Activate OSPF 56 Area 0 except interface fa0/0
3. Setup IP nat translation
Public IP address: 156.56.65.80/29
Usable host: 156.56.65.81 – 86

Use Public IP addr for (156.56.65.81) Private IP PC4 192.168.40.10
Use Public IP addr for (156.56.65.82) Private IP PC4 192.168.40.11
Use the remaining Public IP addr (156.56.65.83-86) to Private IP 192.168.0.0

ip nat inside source static 192.168.40.10 156.56.65.81
ip nat inside source static 192.168.40.11 156.56.65.82
ip nat pool publicpool 156.56.65.83 156.56.65.86 netmask 255.255.255.248
access-list 10 deny host 192.168.40.10
access-list 10 deny host 192.168.40.11
access-list 10 permit 192.168.0.0 0.0.255.255
ip nat inside source list 10 pool publicpool overload

VERIFY: #show ip nat translation

4. Create BGP neighbor from R3 to R4
R3 (AS#56) , R4 (AS#65)

R3::
conf t
router bgp 56
neighbor 56.0.0.2 remote-as 65
!
R4::
conf t
router bgp 65
neighbor 56.0.0.1 remote-as 56

VERIFY:
#show ip bgp
#show ip bgp summary
#show ip route

Advertise public IP address 156.56.65.80/29 from R3
R3::
conf t
router bgp 56
network

Add a static discard route from R3 using public IP address.
R3::
conf t
ip route 156.56.65.80 255.255.255.248 null 0
!
VERIFY:
#show ip bgp
#show ip bgp summary
#show ip route

Advertise a static discard route using default route.
R4::
conf t
router bgp 65
network 0.0.0.0 mask 0.0.0.0
exit
ip route 0.0.0.0 0.0.0.0 null 0
!

TESTING: from R3 using an extended ping
R3::
ping 172.16.18.1 source 192.168.56.1 (!!!!)
from PC1
ping 172.16.18.1 (failed)

Try to advertise the BGP ip route to R2 and R3 using a route redistribution
R3::
conf t
router ospf 56
redistribute bgp 56 metric

/////Links/////
Contacts:
Linkedin ID
https://
Gmail
mariembuenaventura5656@gmail.com

/////Credits/////
Elena Mofar (Cisco Self Study)
Network Engineer Academy
David Bombal
NetworkChuck
Keith Barker
Jeremy Ciora
Kevin Wallace
Anthony Sequiora
Quibzky
Zach Hill
CBT Nuggets
ITProTV
INE
Whizlab
TutorialsDojo
GNS3
Udemy

/////Tags/////
CCNA Routing & Switching (300-101)
CCNP Route 300-101
CCNP Switch 300-115
CCNP TShoot 300-135
Cisco CCNP Enterprise ENARSI (Exam 300-410)
Cisco CCNP Enterprise ENCOR (350-401)
Cisco CCNP Enterprise ENSLD (350-402)

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Alice AUSTIN

Alice AUSTIN is studying Cisco Systems Engineering. He has passion with both hardware and software and writes articles and reviews for many IT websites.

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