Text for IPv6 Scope

[Crist J. Clark]

On Sat, Jan 05, 2008 at 11:39:21AM -0800, Michael Smith wrote:
> Hello All:
> 
> I think we're crossing the streams here.  The Site Local (FEC0::/10)  
> has been deprecated.  The fe80:: is Link Local and is very much alive.

Those are all of the scope values still assigned in RFC4291 which is
the latest draft standard. See section 2.5.7.

As for whether all of the site-local support should be removed, RFC3879,
says,

  "...the formal deprecation
   allows existing usage of site-local addresses to continue until the
   replacement is standardized and implemented."

The replacement does not yet exist.

> On Jan 5, 2008, at 3:52 AM, Michael Tuexen wrote:
> 
> >Dear all,
> >
> >aren't site-local IPv6 addresses depreceated (RFC 3879)? So shouldn't
> >the site-local stuff be removed?
> >
> >Best regards
> >Michael
> >
> >On Jan 4, 2008, at 10:56 PM, Crist J. Clark wrote:
> >
> >>Anyone up for adding text to the scopeid field in the ifconfig(8)
> >>output for IPv6 addresses? Other OSes do. To avoid too much
> >>disruption to the current format, the text is appended after the
> >>currently printed hexadecimal field.
> >>
> >>Example:
> >>
> >>fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> >>      options=8<VLAN_MTU>
> >>      inet6 fe80::290:27ff:fe13:2540%fxp0 prefixlen 64 scopeid  
> >>0x5(site-local)
> >>
> >>While we're at it, update the in6.h file to include all scopes
> >>in RFC4291.
> >>
> >>Look OK? Anyone up for applying these?
> >>
> >>Patches (diffs off of a not-too-current CURRENT):
> >>
> >>Index: sbin/ifconfig/af_inet6.c
> >>===================================================================
> >>RCS file: /ncvs/freebsd/src/sbin/ifconfig/af_inet6.c,v
> >>retrieving revision 1.5
> >>diff -u -r1.5 af_inet6.c
> >>--- sbin/ifconfig/af_inet6.c	3 Feb 2007 03:40:33 -0000	1.5
> >>+++ sbin/ifconfig/af_inet6.c	4 Jan 2008 21:53:26 -0000
> >>@@ -290,8 +290,31 @@
> >>	if ((flags6 & IN6_IFF_TEMPORARY) != 0)
> >>		printf("temporary ");
> >>
> >>-        if (scopeid)
> >>-		printf("scopeid 0x%x ", scopeid);
> >>+        if (scopeid) {
> >>+		printf("scopeid 0x%x", scopeid);
> >>+		switch (scopeid) {
> >>+		case __IPV6_ADDR_SCOPE_INTFACELOCAL:
> >>+			printf("(interface-local) ");
> >>+			break;
> >>+		case __IPV6_ADDR_SCOPE_LINKLOCAL:
> >>+			printf("(link-local) ");
> >>+			break;
> >>+		case __IPV6_ADDR_SCOPE_ADMINLOCAL:
> >>+			printf("(admin-local) ");
> >>+			break;
> >>+		case __IPV6_ADDR_SCOPE_SITELOCAL:
> >>+			printf("(site-local) ");
> >>+			break;
> >>+		case __IPV6_ADDR_SCOPE_ORGLOCAL:
> >>+			printf("(org-local) ");
> >>+			break;
> >>+		case __IPV6_ADDR_SCOPE_GLOBAL:
> >>+			printf("(global) ");
> >>+			break;
> >>+		default:
> >>+			putchar(' ');
> >>+		}
> >>+	}
> >>
> >>	if (ip6lifetime && (lifetime.ia6t_preferred ||  
> >>lifetime.ia6t_expire)) {
> >>		printf("pltime ");
> >>Index: sys/netinet6/in6.h
> >>===================================================================
> >>RCS file: /ncvs/freebsd/src/sys/netinet6/in6.h,v
> >>retrieving revision 1.44
> >>diff -u -r1.44 in6.h
> >>--- sys/netinet6/in6.h	28 Mar 2006 12:51:22 -0000	1.44
> >>+++ sys/netinet6/in6.h	4 Jan 2008 21:44:36 -0000
> >>@@ -271,6 +271,7 @@
> >>#define IPV6_ADDR_SCOPE_NODELOCAL	0x01
> >>#define IPV6_ADDR_SCOPE_INTFACELOCAL	0x01
> >>#define IPV6_ADDR_SCOPE_LINKLOCAL	0x02
> >>+#define IPV6_ADDR_SCOPE_ADMINLOCAL	0x04
> >>#define IPV6_ADDR_SCOPE_SITELOCAL	0x05
> >>#define IPV6_ADDR_SCOPE_ORGLOCAL	0x08	/* just used in this file */
> >>#define IPV6_ADDR_SCOPE_GLOBAL		0x0e
> >>@@ -278,6 +279,7 @@
> >>#define __IPV6_ADDR_SCOPE_NODELOCAL	0x01
> >>#define __IPV6_ADDR_SCOPE_INTFACELOCAL	0x01
> >>#define __IPV6_ADDR_SCOPE_LINKLOCAL	0x02
> >>+#define __IPV6_ADDR_SCOPE_ADMINLOCAL	0x04
> >>#define __IPV6_ADDR_SCOPE_SITELOCAL	0x05
> >>#define __IPV6_ADDR_SCOPE_ORGLOCAL	0x08	/* just used in this file */
> >>#define __IPV6_ADDR_SCOPE_GLOBAL	0x0e
> >>-- 
> >>Crist J. Clark                     |     cjclark at alum.mit.edu
> >>_______________________________________________
> >>freebsd-net at freebsd.org mailing list
> >>http://lists.freebsd.org/mailman/listinfo/freebsd-net
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> >>
> >
> >_______________________________________________
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-- 
Crist J. Clark                     |     cjclark at alum.mit.edu