Written question asked by Stephen O'Brien (Conservative) on Thursday, 4 December 2008, in the House of Commons. It was due for an answer on Monday, 8 December 2008. It was answered by Angela Eagle (Labour) on Thursday, 11 December 2008 on behalf of the Treasury.

Departmental Internet

Question: To ask the Chancellor of the Exchequer with reference to the answer of 4 November 2008, Official Report, columns 336-7W, on Government departments: information and communications technology, which IP addresses are used by (a) his Department and (b) computers in the offices of its (i) Ministers, (ii) communications officials and (iii) special advisers.

Answer: To help defend against electronic attack, it is standard good practice for corporate IT systems not to publish internal IP addresses. When accessing internet websites, the IP addresses of all of the computers on HM Treasury's internal office IT system are hidden behind the following IP addresses which are publicly available—195.92.40.49 and 62.25.106.209. These IP addresses are shared with other Government departments who use the Government secure intranet.

Secondary information