Dear all: I've been searching the web for tests or reports about how performance in current IP boxes (core routers, BRAS, edge routers...) is impacted when enabling IPv6, but haven't been able to find anything useful, but a couple of reports dated in 2002 and 2004: http://www.lightreading.com/document.asp?doc_id=63606 http://www.ipv6-tf.com.pt/documentos/geral/bii_v6_interop.pdf I already assume some impacts in memory for IPv6 prefixes, or CPU usage... but don't clearly see other impacts (number of sessions...). I know performance will mainly depend on which service structure is selected (PPPoE, DHCPv6...), but... could anybody point to a report that deals with all these issues? Thank you, David Pérez.