CCNA 4 v6.0 Chapter 3 SIC PPP, Routing, and Remote Access VPN – PT Skills Assessment Option 3

Chapter 3 SIC: PPP, Routing, and Remote Access VPN

Option 3

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Addressing Table

Note: All device console passwords are cisco. All device enable passwords are class.

Step 1 Configure HDLC on router OffSite.

Configure the WAN link from router OffSite to ISP_1  using HDLC encapsulation.

Step 2 Configure PPP to connect Main to ISP_1.

Configure the WAN link from router Main to ISP_1  using PPP encapsulation and CHAP authentication.

  • Create a user ISP_1 with the password of cisco123.

Step 3 Configure eBGP routing.

a.  Configure router Main with eBGP routing.

  • Configure Main to peer with ISP_1.
  • Add only Main 10.1.1.0/24 internal network to BGP.

b.  Configure router Backup with eBGP routing.

  • Configure Backup to peer with ISP_1.
  • Add the Backup internal network to BGP

Step 4 Configure GRE Tunneling.

a.  Configure router Main with a tunnel interface to send IP traffic over GRE to Backup.

  • Configure Tunnel 1 with appropriate addressing information.
  • Configure the tunnel source with the local exit interface.
  • Configure the tunnel destination with the appropriate endpoint IP address.

b.  Configure router Backup with a tunnel interface to send IP traffic over GRE to Main.

  • Configure Tunnel 1 with appropriate addressing information.
  • Configure the tunnel source with the local exit interface.
  • Configure the tunnel destination with the appropriate endpoint IP address.

Step 5 Configure OSPF Routing.

The Backup LAN must have connectivity to the Main LAN. Configure OSPF across the GRE tunnel.

  • Configure OSPF process 10 on the Backup router.
  • Backup should advertise the LAN network via OSPF.
  • Backup should be configured to form an adjacency Main over the GRE tunnel.
  • Disable OSPF updates on appropriate interface(s).

Step 6 Configure OSPF Routing.

The Main LAN must have connectivity to the Backup LAN. Configure OSPF across the GRE tunnel.

  • Configure OSPF process 10 on the Main router.
  • Main should advertise both LAN networks via OSPF.
  • Main should be configured to form an adjacency with Backup over the GRE tunnel.
  • Disable OSPF updates on appropriate interface(s).

Step 7 Connectivity.

a.  Verify full connectivity from Main_PC1 to the Web_Server in the OffSite network.

b.  Verify full connectivity from Teleworker1 to Web_Server in the OffSite network.

Answers:

OffSite Router

OffSite#configure terminal
OffSite(config)#interface s0/0/0
OffSite(config-if)#encapsulation hdlc

Main Router

Password:cisco
Main>en
Password: class
Main#conf ter
Main(config)#username ISP_1 password cisco123
Main(config)#int s0/0/0
Main(config-if)#encapsulation ppp 
Main(config-if)#ppp authentication chap 
Main(config-if)#
Main(config-if)#exit

Main(config)#router bgp 65530
Main(config-router)#network 10.1.1.0 mask 255.255.255.0
Main(config-router)#neighbor 209.165.200.242 remote-as 65500
Main(config-router)#exit


Main(config)#interface tunnel 1
Main(config-if)#ip address 192.168.1.1 255.255.255.248
Main(config-if)#tunnel source s0/0/0
Main(config-if)#tunnel destination 209.165.201.17
Main(config-if)#exit
Main(config)#

Main(config)#router ospf 10
Main(config-router)#network 10.1.1.0 0.0.0.255 area 0
Main(config-router)#network 10.1.2.0 0.0.0.255 area 0
Main(config-router)#network 192.168.1.0 0.0.0.7 area 0
Main(config-router)#passive-interface g0/1
Main(config-router)#passive-interface g0/2
Main(config-router)#

Backup

Password: cisco

Backup>en
Password: class
Backup#conf ter
Backup(config)#router bgp 65532
Backup(config-router)#network 10.2.1.0 mask 255.255.255.0
Backup(config-router)#neighbor 209.165.201.18 remote-as 65500
Backup(config-router)#exit 

Backup(config)#interface tunnel 1
Backup(config-if)#ip address 192.168.1.2 255.255.255.248
Backup(config-if)#tunnel source s0/0/1
Backup(config-if)#tunnel destination 209.165.200.241
Backup(config-if)#exit

Backup(config)#router ospf 10
Backup(config-router)#network 10.2.1.0 0.0.0.255 area 0
Backup(config-router)#network 192.168.1.0 0.0.0.7 area 0
Backup(config-router)#passive-interface g0/1

 

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