Piplfox- 13.10.1.0/8 is a routable public address and shouldn't be used on LAN unless your the user of that subnet… It has the possibility of causing you problems.
http://www.noah.org/wiki/Private_LAN_IP_addresses
Heres a screenshot of the rule on my test box... I use a nonstandard port on my production boxes...
as pointed out already... You should have no port forwarding turned on for this rule.
WanRule.JPG
WanRule.JPG_thumb