Why is permitting Server Port Probing considered a security risk?
Setting your VisualRoute Server to allow port probing permits clients to request your server to access ports on third-party systems. On high-security networks, this is may be treated as an attempted breach of security. Furthermore, the third-party system will see your VisualRoute Server as the perpetrator of the attempted attack. Therefore malicious clients will be able attack remote systems in an anonymous manner.