Added IP addressing and basic OSPF (just some network commands). All the routers/switches are in Area 0 for now. Verified end-to-end ping connectivity on all routers except the other ISPs and Peers(those shouldn’t run OSPF).

Lessons learned:

• Duplicate IP addressing leads to > OSP warning about a subnet being re-introduced > OSPF Flooding war > MALLOCFAIL warning (ran out of memory).
• The virtual switches that were used didn’t like redundant switch lines, so some of the redundant ones were turned off.

Commands used:

• interface ethernet0/0
• ip address
• no shut
• router ospf 1
• network 10.0.0.1 0.0.0.3 area 0
• switchport trunk encapsulation dot1q
• switchport mode trunk
• switchport host
• A few commands to set up a Bridged Virtual Interface on the router that’s pretending to be a firewall.
• Added password ‘cisco’ to the VTY lines
• ping

Show commands used:

• show ip interface brief
• show ip route
• show ip ospf neighbors
• show interface summary
• show interface stats
• show proc memory [sorted]
• show vlan brief
• show spanning-tree