Вот написал regex
\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?) # IP-адрес :(?!0+)(?!6553[6-9])(?!655[4-9]\d)(?!65[6-9]\d\d)(?!6[6-9]\d\d\d)(?![7-9]\d\d\d\d)(\d{1,5}) # Порт \b