Councils in East Sussex and France pledged to encourage more tourists and freight trade to use Newhaven ferry service.
At a meeting on November 5 representatives from both sides of the Channel hoped this would give the line to Dieppe a long term future.
The aim was for both sides to work more closely together and promote better links.
Leader of Lewes District Council Rob Blackman said: “It is great to be working in partnership with the aim to keep the port services ongoing.
“Collectively we have managed to retain the opening of the ferry for another year and look forward to exploring further options for the future of the port and grow the Sussex/Normandy tourism and freight economies.”
Lewes District Council, Newhaven Port and Properties, DFDS, Agglo Dieppe, Seine Maritime, C2C LEP and East Sussex County Council met to see how the ferry could benefit the economies of Newhaven, Dieppe and the surrounding areas.
The meeting was hosted by Newhaven Town Council and chaired by cllr Blackman.
In particular, the emphasis was on promoting and working to protect the future of the Newhaven to Dieppe ferry service, which is key to the economies and operation of both ports.
The district council said the ferry service was an important element in protecting the vitality and viability of Newhaven port.
Newhaven Port and Properties, which owns the port, has been working closely with the district council and other partners to help to plan the future of the port. Recently the Port announced that an agreement with Syndicat Mixte de Promotion de L’Activité Transmanche (SMPAT) had been made to extend the service for another 12 months.
The two ferries the Seven Sisters and the Cote d’Albâtre, owned by the SMPAT, will be operated by DFDS Seaways France on the Dieppe to Newhaven line in 2015. New rotations will be tried in high season, in response to growing demand.