Cisco DMVPN with Dynamic Global IP(PPPoE) Configuration

Cisco DMVPN with Dynamic Global IP(PPPoE) Configuration

• Topology
  
  
  
  
• Configuration Settings Overview
  
  
  1. Static/Dynamic IP
     HUB - Static Global IP
     SPOKE1 - Dynamic Global IP
     SPOKE2 - Dynamic Global IP (Behind NAPT)
     SPOKE3 - Dynamic Global IP (Behind NAPT)
     
     
  2. OSPF Eanble Interface
     HUB - Tunnel0, E1/1
     SPOKE1 - Tunnel0, E1/1
     SPOKE2 - Tunnel0, E1/1
     SPOKE3 - Tunnel0, E1/1
     
     
  3. OSPF Configuration
     HUB Tunnel0 (OSPF DR)
     ip ospf network broadcast (For Routing between SPOKEs)
     
     SPOKE1, SPOKE2, SPOKE3 Tunnel0
     ip ospf network broadcast (For Routing between SPOKEs)
     ip ospf priority 0 (OSPF Not DR)
     
     
  4. NAT1/NAT2 Router Configuration
     

     ip nat inside source static udp 192.168.250.2 500 interface Dialer1 500
     ip nat inside source static udp 192.168.250.2 4500 interface Dialer1 4500
     

  
  
• Dynagen Config File / Router Config

  1. Dynagen .net file
  
  2. HUB(R1)
  
  3. SPOKE1(R2)
  
  4. SPOKE2(R3)
  
  5. PPPoE Server(R4)
  
  6. NAT1(R5)
  
  7. NAT2(R6)
  
  8. SPOKE3(R7)
  

• show command

  HUB(R1) :
    sh dmvpn
    sh ip nhrp
    sh ip route
  SPOKE1(R2) :
    sh dmvpn
    sh ip route
    sh crypto isakmp sa
    ping 192.168.3.1 so e1/1
    sh crypto isakmp sa
    traceroute 192.168.3.1 so e1/1 numeric
  
  1. show command