1. UCB NAT Steve VanDeBogart

2. UCB Outline Common NAT – m:1 Rewriting based on Port Reserved Addresses Classic NAT - m:n Static/Dynamic Issues

3. UCB Common Nat – m:1 Solution: Private Network Internet NAT Router       m Problem?  x

4. UCB Reserved Addresses 1994: RFC 1597 Non-Connected Use 10.0.0.0- 10.255.255.255 172.16.0.0- 172.31.255.255 196.168.0.0- 196.168.255.255 Reserved on I-net?

5. UCB Classic NAT – m:n Internet NAT Router    n  r   r   r   r   r rmrm Dynamic Assignment of Real IPs

6. UCB Static/Dynamic Static Assigned once – Randomly, or not M  N Dynamic Recycled: After last connection closes Only N machines can have connections

7. UCB Issues No Servers Protocols with embedded IP’s FTP ICMP DNS