SAN JOSE, CA. — Networking giant Cisco Systems is acquiring privately held Meetinghouse Data Communications in a deal worth $43.7 million.

Meetinghouse, which is based in Portsmouth, N.H., develops security software designed to restrict access to enterprise networks through both wired and wireless devices.

Funk Software, a provider of similar services to those offered by Meetinghouse, was acquired by Cisco rival Juniper Networks in December.

The acquisition will enable Cisco (Nasdaq: CSCO) to offer a unified wired and wireless client for enterprise customers, the company said in a statement. The deal was announced after the markets closed on Thursday. Cisco stock closed up 3 cents at $19.63.

“The growth in the number of cases of unauthorized access to sensitive and confidential information in enterprise networks has increased the need for securing connectivity through robust, easy-to-manage client-based security solutions,” said Brett Galloway, vice president and general manager for the Wireless Networking Business Unit at Cisco. “The Meetinghouse software supplicant is a natural extension to existing Cisco initiatives such as the Cisco Self Defending Network via Network Admission Control and the Cisco Compatible Extensions program.”

The purchase price includes cash and assumed options. The deal is expected to close in Cisco’s fiscal quarter ending Oct. 28.

Meetinghouse will become part of Cisco’s wireless networking business unit. It has 77 employees.

Cisco: www.cisco.com