4. Summary

In conclusion, neither shortage of address space nor security should be considered strong reasons to migrate large numbers of systems behind NAT. Similar or better firewalling capabilities are offered on by many appliances or software applications without the need for NAT, while IP address space shortages are less severe than some may perceive.

OUCS are by no means looking to ban the use of NAT within the university but do ask that units understand the implications and ensure that they can fulfil OUCS's expectations of them. It is vital that the need for decent logging be appreciated by anyone who has implemented, or is looking to implement, NAT within their network.

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