Editing Private network (section)

==Misrouting==
It is common for packets originating in private address spaces to be misrouted onto the Internet.  Private networks often do not properly configure [[DNS]] services for addresses used internally and attempt [[reverse DNS lookup]]s for these addresses, causing extra traffic to the Internet [[root nameservers]].  The [[AS112]] project attempted to mitigate this load by providing special ''black hole'' [[anycast]] nameservers for private address ranges which only return negative result codes (''not found'') for these queries.

Organizational edge routers are usually configured to drop ingress IP traffic for these networks, which can occur either by misconfiguration or from malicious traffic using a spoofed source address.  Less commonly, ISP edge routers drop such egress traffic from customers, which reduces the impact to the Internet of such misconfigured or malicious hosts on the customer's network.