diff -ru linux.orig/net/ipv4/Kconfig linux/net/ipv4/Kconfig --- linux.orig/net/ipv4/Kconfig 2004-12-22 12:58:03.000000000 +0100 +++ linux/net/ipv4/Kconfig 2004-12-22 13:42:14.000000000 +0100 @@ -355,7 +355,11 @@ default y ---help--- Support for TCP socket monitoring interface used by native Linux - tools such as ss. + tools such as ss. ss comes from iproute2. + http://developer.osdl.org/dev/iproute2/ + + If you wish to view IPv6 addresses (Local/Peer Address) with ss + IPv6 support must be built into the kernel, not as a module. If unsure, say Y.