protected boolean isMatch(IPListConfig config, String remoteAddrStr) {
        try {
            return isMatchInternal(config, remoteAddrStr);
        } catch (AddressStringException e) {
            LOGGER.error(e, "Problem with matching rule: " + e.getMessage());
            // Emulate existing behaviour.
            return false;
        }
    }
Returns true if the remote address is a match for the configured
values in the IP List.
@param config the config
@param remoteAddrStr the remote address
gateway/engine/policies/src/main/java/io/apiman/gateway/engine/policies/AbstractIPListPolicy.java