Reverse mapping?

[Keith Owens]

On Fri, 30 Jul 1999 14:21:38 +0200 (MET DST), 
Xavier <xavier@euro.net> wrote:
>Someone has good tips, urls about reverse mapping for IPv6 adresses?

Nothing difficult.  Get a version of BIND that understands IPv6
addresses, release 4 has security holes but any release 8 BIND
understands AAAA records.  My /etc/named.conf contains

zone "6.0.0.0.0.0.9.0.e.f.f.3.ip6.int" {
        type master;
        file "db.3ffe.0900.0006";
};


File db.3ffe.0900.0006 contains

;
; origin is 6.0.0.0.0.0.9.0.e.f.f.3.ip6.int
;

@               IN      SOA     firewall.ocs.com.au. admin.ocs.com.au. (
                                199809301       ; Serial
                                172800  ; Refresh after 2 days
                                3600    ; Retry after 1 hour
                                604800  ; Expire after 1 week
                                86400 ) ; Minimum TTL of 1 day
;
; Name server(s)
;
                IN      NS      firewall.ocs.com.au.
                IN      NS      mail.ocs.com.au.
;
; Host addresses
;
6.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0         IN      PTR     router-6.ocs.com.au.

db.ocs.com.au contains

;
; origin is ocs.com.au
;

@               IN      SOA     firewall.ocs.com.au. admin.ocs.com.au. (
                                199809301       ; Serial
                                172800  ; Refresh after 2 days
                                3600    ; Retry after 1 hour
                                604800  ; Expire after 1 week
                                86400 ) ; Minimum TTL of 1 day
;
; Name server(s)
;
                IN      NS      firewall.ocs.com.au.
                IN      NS      mail.ocs.com.au.
;
; Host addresses
;
router-6        IN      AAAA    3ffe:900:6::6

To help writing out those long reverse addresses, try
ftp://ftp.ocs.com.au/pub/ip6_int.gz.

ip6_int 3ffe:900:6::6/48 gives 6.0.0.0.0.0.9.0.e.f.f.3.ip6.int
ip6_int 3ffe:900:6::6/-48 gives what is left after removing the first
48 bits, 6.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0