Unfortunately, R80.30 is unable to filter incoming traffic with the Custom IOC feature. This starts working with R81. Same goes for IPv6. Also not working in that feature with anything below R81. This info is also in the sk linked by Jan.
If filtering incoming traffic is really needed and you cannot upgrade to a modern version, than you could use the Rate Limiting DoS-Feature from sk103154 as workaround. Still no IPv6 with that feature.
Please also take care, that you need TP (more concrete AV or AB) license for Custom IOC feature to work.
In more modern versions like R81.10, you could create a Custom Data Center object which you can populate by the filter lists of your choice and then use that object in your rulebase. This would not need TP blades (or licenses).