I wonder, if I can use Workbench to do "hardware" debug? It's said that it's OK on EB boards, but I only have a SI board from Radisys. So I'm not sure whether it works. I've tried. Sometimes, it seemed successifully connected with the board, while in the other times, it just reported "Attach to debug library operation failed". It let me puzzled. Who can give some hints?

BTW, to my opinion, play with ixp1200 is a game far from fun. There are enormous documents, while it's rather difficult to find wanted information.