The former Trawlerboy will be available for tomorrow night's match against Enfield, subject to paperwork being completed.
Eagle said: "I'm looking forward to putting the shirt back on and helping the club through its difficult times. I've been there through the good times so I only feel it’s right to help through the tough periods too. I always enjoyed my time at Lowestoft and I’m sure I will enjoy it again for the time that I am there."
Welcome back Robert!