Two RFC2317 Questions

[Barry Finkel]

I have two questions about RFC 2317; this is my first attempt at using
that RFC.  We have been assigned by

     swbell.net

a subnet of

     241.60.216.in-addr.arpa.

Specifically we have been assigned addresses 1-127.  Other clients
have been assigned the addresses 128-254.  I followed RFC 2317
and I set up this on our master BIND 8.2.5-REL server.  First the
zone definition in named.conf, then the actual zone:

----------
zone "0/25.241.60.216.in-addr.arpa." {
        type master;
        file "able.rev";
};

----------
$TTL 86400 ; default time to live is 1 day
$ORIGIN 0/25.241.60.216.in-addr.arpa.
;$INCLUDE named.local
;       named.soa
;       define start of authority, name servers and loopback
;       As per BIND 4.9 operations guide, serial number format is now
;               "YYYYMMDDNN" where NN is the daily sequence number.
;
@               IN      SOA     dns0.anl.gov. hostmaster.anl.gov. (
                                2002040800      ; Serial
                                7200            ; Refresh     - 2 hours
                                3600            ; Retry       - 1 hour
                                1209600         ; Expire      - 14 days
                                604800 )        ; Neg. cache  - 7 days
                IN      NS      dns1.anl.gov.
                IN      NS      dns2.anl.gov.
                IN      NS      nsx.lbl.gov.
                IN      NS      ns2.es.net.
;
17      IN      PTR     csgax.able.anl.gov.
<<I have omitted the rest of the zone here.>>
----------

What swbell has set up on their nameservers (ns1.swbell.net and 
ns2.swbell.net) is:

----------
; <<>> DiG 2.0 <<>> @ns1.swbell.net 241.60.216.in-addr.arpa AXFR 
;; QUESTIONS: 
;;	241.60.216.in-addr.arpa, type = AXFR, class = IN
241.60.216.in-addr.arpa.	7200	SOA	ns1.swbell.net.
postmaster.swbell.net. (
			200204090	;serial
			3600	;refresh
			900	;retry
			604800	;expire
			7200 )	;minim
0.241.60.216.in-addr.arpa.	7200	NS	dns1.anl.gov.
0.241.60.216.in-addr.arpa.	7200	NS	dns2.anl.gov.
0.241.60.216.in-addr.arpa.	7200	NS	ns2.es.net.
0.241.60.216.in-addr.arpa.	7200	NS	nsx.lbl.gov.
0.241.60.216.in-addr.arpa.	7200	NS	ns1.swbell.net.
0.241.60.216.in-addr.arpa.	7200	NS	ns2.swbell.net.
1.241.60.216.in-addr.arpa.	7200	CNAME	1.0.241.60.216.in-addr.arpa.
2.241.60.216.in-addr.arpa.	7200	CNAME	2.0.241.60.216.in-addr.arpa.
3.241.60.216.in-addr.arpa.	7200	CNAME	3.0.241.60.216.in-addr.arpa.
<<I have omitted records 4-123 here.>>
124.241.60.216.in-addr.arpa.	7200	CNAME 124.0.241.60.216.in-addr.arpa.
125.241.60.216.in-addr.arpa.	7200	CNAME 125.0.241.60.216.in-addr.arpa.
126.241.60.216.in-addr.arpa.	7200	CNAME 126.0.241.60.216.in-addr.arpa.
----------

The two questions I have are these:

1) I have "/25" in my zone per the RFC, but swbell does not.  Is this
   going to cause confusion or cause DNS not to function correctly?
   If so, do I have to remove my "/25", or does swbell have to add
   "/25"?

2) swbell has included in their zone my four nameservers as well as
   their two nameservers.   I have only my four nameservers in my zone.
   As swbell has not assigned me the whole Class-C subnet of their
   Class-B, they have the other half of that Class-B on their servers;
   that is why they include their nameservers as well as mine.
   My reading of the RFC leads me to believe that the zone should
   not reference the 

        ns[12].swbell.net

   servers because they have delegated the 127 addresses to my servers.
   What should be in the NS records?

Thanks.
----------------------------------------------------------------------
Barry S. Finkel
Electronics and Computing Technologies Division
Argonne National Laboratory          Phone:    +1 (630) 252-7277
9700 South Cass Avenue               Facsimile:+1 (630) 252-4601
Building 222, Room D209              Internet: BSFinkel at anl.gov
Argonne, IL   60439-4828             IBMMAIL:  I1004994