Indeed.6 metres no problem for Ethernet.
BSProbably have to make up your own cable (or get one made).
6ML http://cpc.farnell.com/webapp/wcs/stores/servlet/Search?catalogId=15002&langId=69&storeId=10180&categoryId=700000010310&st=6m cat5e&pageSize=25&showResults=true&pf=110202369
7M http://cpc.farnell.com/webapp/wcs/stores/servlet/Search?catalogId=15002&langId=69&storeId=10180&st=7m cat5e&pageSize=25&showResults=true&pf=110417039
8M http://cpc.farnell.com/videk/2966-8f/lead-flat-cat6-utp-beige-8m/dp/CS15742
(linked the 7m and 8m lengths because people often underestimate required cable lengths)
Note: avoid leads marked as "CCA". They are cheaper but less reliable.