draft-ietf-dhc-dhcp-dns-04.txt   draft-ietf-dhc-dhcp-dns-05.txt 
Network Working Group Yakov Rekhter Network Working Group Yakov Rekhter
Internet Draft Cisco Systems Internet Draft Cisco Systems
Expiration Date: November 1997 May 1997 Expiration Date: May 1998 November 1997
Interaction between DHCP and DNS Interaction between DHCP and DNS
draft-ietf-dhc-dhcp-dns-04.txt draft-ietf-dhc-dhcp-dns-05.txt
1. Status of this Memo 1. Status of this Memo
This document is an Internet-Draft. Internet-Drafts are working This document is an Internet-Draft. Internet-Drafts are working
documents of the Internet Engineering Task Force (IETF), its areas, documents of the Internet Engineering Task Force (IETF), its areas,
and its working groups. Note that other groups may also distribute and its working groups. Note that other groups may also distribute
working documents as Internet-Drafts. working documents as Internet-Drafts.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
skipping to change at page 6, line 38 skipping to change at page 6, line 38
If a server terminates a lease on an address prior to the lease If a server terminates a lease on an address prior to the lease
expiration time, the server should delete the PTR RR associated with expiration time, the server should delete the PTR RR associated with
the address. In addition, if the client (that leased the address) the address. In addition, if the client (that leased the address)
authorized the server to update its A RR, the server should also authorized the server to update its A RR, the server should also
delete the A RR. The deletion should follow the procedures described delete the A RR. The deletion should follow the procedures described
in [DynDNS]. in [DynDNS].
4.4. Procedures for performing DNS updates 4.4. Procedures for performing DNS updates
When a DHCP server needs to update the PTR RR for a particular IP When a DHCP server needs to update the PTR RR for a particular IP
address, the server first has to delete all the PTR RRs associated address, the server just adds a new PTR RR for that address.
with the address, and then add a new PTR RR for that address.
When a DHCP server needs to update the A RR for a particular FQDN, When a DHCP server needs to update the A RR for a particular FQDN,
the server first has to delete all the A RRs associated with that the server first has to delete all the A RRs associated with that
FQDN, and then add a new A RR for that FQDN. Note that this rule FQDN, and then add a new A RR for that FQDN. Note that this rule
precludes the ability to support multi-homed hosts in the scenario precludes the ability to support multi-homed hosts in the scenario
where A RRs are updated by a DHCP server. Therefore, multi-homed where A RRs are updated by a DHCP server. Therefore, multi-homed
hosts should perform updates to their A RRs by themselves. hosts should perform updates to their A RRs by themselves.
Procedures for deleting and adding RRs are described in [DynDNS]. Procedures for deleting and adding RRs are described in [DynDNS].
skipping to change at page 8, line 11 skipping to change at page 8, line 11
Many thanks to Mark Beyer, Jim Bound, Ralph Droms, Peter Ford, Edie Many thanks to Mark Beyer, Jim Bound, Ralph Droms, Peter Ford, Edie
Gunter, Stuart Kwan, Ted Lemon, Michael Lewis, Michael Patton, Mark Gunter, Stuart Kwan, Ted Lemon, Michael Lewis, Michael Patton, Mark
Stapp, and Glenn Stump for their review and comments. Stapp, and Glenn Stump for their review and comments.
9. Author Information 9. Author Information
Yakov Rekhter Yakov Rekhter
cisco Systems, Inc. cisco Systems, Inc.
170 Tasman Dr. 170 Tasman Dr.
San Jose, CA 95134 San Jose, CA 95134
Phone: (914) 528-0090 Phone: (914) 235-2128
email: yakov@cisco.com email: yakov@cisco.com
 End of changes. 

This html diff was produced by rfcdiff 1.23, available from http://www.levkowetz.com/ietf/tools/rfcdiff/