Hi all, Sorry for the cross posting to a number of lists but this is an important topic for many of you (especially if you get multiple copies). As many people are aware there is an 'expectation' that 'consumer' broadband providers introduce network level content blocking for specified content on the IWF list before the end of 07. Whilst this is seen by many as a honorable political crusade to 'protect the innocent' many with a strong technical background are concerned that the long term impact on network development will lead to major 'breakages' within the internet. So far the only debate has revolved around the legal concerns that the introduction of this technology imposes to problems on the ISP: 1. Revocation of mere conduit status; by inspecting certain content and preventing access to it the ISP is doing more that just passing packets and is getting involved in the content. 2. Thin end of the wedge; if we can block Child Abuse Content then we can block copyright infringement.... 3. Increased liability; by blocking the content at a network level outside of the control of the user the ISP is potentially opening it self to a lawsuit should content leak through the block (although many are saying that this is not going to be enforcable it could still tie up people in court going through the arguments with no guarantee of a win cf mere conduit issue above). LINX (the London Internet Exchange) and ISPA are looking to arrange a day to address the technical issues of placing such a block in the network. The topics are expected to include: 1. Implementation - how do you put this into place 2. Scalability - how do you provide a non-degrading service 3. Circumvention - how do you stop people getting round the block 4. Reverse Engineering - how do you hide the block (should you hide it?) 5. Messaging - what do you tell the person about what you just done 6. Legality - what is the legal impact of this 7. Security - who should have access to what 8. Sanity Checking - how to prevent poisoning of the block list 9. Testing - how do you make sure that the block is working 10. Reality - is this actually the best way to do this We have 13 companies involved so far but really want to get as many ISP's together to make sure that people understand the implications of the governments request. Whilst the intent is to focus the content on the technical side we are keen to make sure that the all parts of the ISP industry are brought up to date so may run multiple strands with different levels of technical content if we have the numbers. If you are interested please contact John Souter (john@linx.net) or Malcolm Hutty (malcolm@linx.net) for more details. Thx J -- COO Entanet International T: 0870 770 9580 W: http://www.enta.net/ L: http://tinyurl.com/3bxqez