RFC Errata
Found 10 records.
Status: Verified (6)
RFC 2131, "Dynamic Host Configuration Protocol", March 1997
Source of RFC: dhc (int)
Errata ID: 489
Status: Verified
Type: Editorial
Publication Format(s) : TEXT
Reported By: Soohong Daniel Park
Date Reported: 2004-04-29
Section 3.1 number 5 says:
The client times out and retransmits the DHCPREQUEST message if the
client receives neither a DHCPACK or a DHCPNAK message.
...
If the client
receives neither a DHCPACK or a DHCPNAK message after employing the
retransmission algorithm, the client reverts to INIT state and
restarts the initialization process.
It should say:
The client times out and retransmits the DHCPREQUEST message if the
client receives neither a DHCPACK nor a DHCPNAK message.
...
If the client
receives neither a DHCPACK nor a DHCPNAK message after employing the
retransmission algorithm, the client reverts to INIT state and
restarts the initialization process.
Notes:
Errata ID: 490
Status: Verified
Type: Editorial
Publication Format(s) : TEXT
Reported By: Sreeni R. Nair
Date Reported: 2004-01-13
Section 4.1 says:
Normally, DHCP servers and BOOTP relay agents attempt to deliver DHCPOFFER, DHCPACK and DHCPNAK messages directly to the client using uicast delivery.
It should say:
Normally, DHCP servers and BOOTP relay agents attempt to deliver DHCPOFFER, DHCPACK and DHCPNAK messages directly to the client using unicast delivery.
Notes:
typo (uicast -> unicast). Updated 2013-06-05. Thanks to Carlos Prendes for the correction.
Errata ID: 7177
Status: Verified
Type: Editorial
Publication Format(s) : TEXT
Reported By: Greg Skinner
Date Reported: 2022-10-22
Verifier Name: Erik Kline
Date Verified: 2022-10-22
Section 4.1 says:
If the server has received a message through a DHCP relay agent, the server SHOULD choose an address from the interface on which the message was recieved as the 'server identifier' (unless the server has other, better information on which to make its choice).
It should say:
If the server has received a message through a DHCP relay agent, the server SHOULD choose an address from the interface on which the message was received as the 'server identifier' (unless the server has other, better information on which to make its choice).
Notes:
spelling correction
s/recieved/received/
Errata ID: 7367
Status: Verified
Type: Editorial
Publication Format(s) : TEXT
Reported By: Eugene Adell
Date Reported: 2023-02-23
Verifier Name: RFC Editor
Date Verified: 2023-02-23
Section 4.1 says:
The 'server identifier' field is used both to identify a DHCP server in a DHCP message and as a destination address from clients to servers. A server with multiple network addresses MUST be prepared to to accept any of its network addresses as identifying that server in a DHCP message.
It should say:
The 'server identifier' field is used both to identify a DHCP server in a DHCP message and as a destination address from clients to servers. A server with multiple network addresses MUST be prepared to accept any of its network addresses as identifying that server in a DHCP message.
Notes:
redundant word
s/to to/to/
Errata ID: 7368
Status: Verified
Type: Editorial
Publication Format(s) : TEXT
Reported By: Panayiotis Gavriil
Date Reported: 2023-02-24
Verifier Name: RFC Editor
Date Verified: 2023-02-24
Section 3.1 says:
DHCPNAK - Server to client indicating client's notion of network
address is incorrect (e.g., client has moved to new
subnet) or client's lease as expired
It should say:
DHCPNAK - Server to client indicating client's notion of network
address is incorrect (e.g., client has moved to new
subnet) or client's lease has expired
Notes:
Spelling: "as expired" -> "has expired". (The original might have been the intended spelling, but grammatically it would make more sense to write "has" instead of "as" with the verb "indicate".)
Errata ID: 7369
Status: Verified
Type: Editorial
Publication Format(s) : TEXT
Reported By: Panayiotis Gavriil
Date Reported: 2023-02-24
Verifier Name: RFC Editor
Date Verified: 2023-02-24
Section 3.2 says:
2. Servers with knowledge of the client's configuration parameters
respond with a DHCPACK message to the client. Servers SHOULD NOT
check that the client's network address is already in use; the
client may respond to ICMP Echo Request messages at this point.
Server Client Server
v v v
| | |
| Begins |
| initialization |
| | |
| /|\ |
| _________ __/ | \__________ |
| /DHCPREQU EST | DHCPREQUEST\ |
|/ | \|
| | |
Locates | Locates
configuration | configuration
| | |
|\ | /|
| \ | ___________/ |
| \ | / DHCPACK |
| \ _______ |/ |
| DHCPACK\ | |
| Initialization |
| complete |
| \| |
| | |
| (Subsequent |
| DHCPACKS |
| ignored) |
| | |
| | |
v v v
Figure 4: Timeline diagram of messages exchanged between DHCP
client and servers when reusing a previously allocated
network address
It should say:
2. Servers with knowledge of the client's configuration parameters
respond with a DHCPACK message to the client. Servers SHOULD NOT
check that the client's network address is already in use; the
client may respond to ICMP Echo Request messages at this point.
Server Client Server
v v v
| | |
| Begins |
| initialization |
| | |
| /|\ |
| __________/ | \__________ |
| /DHCPREQUEST | DHCPREQUEST\ |
|/ | \|
| | |
Locates | Locates
configuration | configuration
| | |
|\ | /|
| \___________ | ___________/ |
| DHCPACK \ | / DHCPACK |
| \|/ |
| | |
| Initialization |
| complete |
| | |
| | |
| (Subsequent |
| DHCPACKS |
| ignored) |
| | |
| | |
v v v
Figure 4: Timeline diagram of messages exchanged between DHCP
client and servers when reusing a previously allocated
network address
Notes:
Alignment in various places + removing space in the middle of a word ("DHCPREQU EST" -> "DHCPREQUEST")
Status: Reported (1)
RFC 2131, "Dynamic Host Configuration Protocol", March 1997
Source of RFC: dhc (int)
Errata ID: 5100
Status: Reported
Type: Technical
Publication Format(s) : TEXT
Reported By: Fan Wei
Date Reported: 2017-08-29
Section 4.1 says:
Normally, DHCP servers and BOOTP relay agents attempt to deliver DHCPOFFER, DHCPACK and DHCPNAK messages directly to the client using uicast delivery.
It should say:
Normally, DHCP servers and BOOTP relay agents attempt to deliver DHCPOFFER, DHCPACK messages directly to the client using unicast delivery.
Notes:
According to prior part description in section 4.1: "In all cases, when ’giaddr’ is zero, the server broadcasts any DHCPNAK messages to 0xffffffff.", the DHCP server should not send DHCPNAK in unicast to client unless 'giaddr' is not zero.
Status: Held for Document Update (2)
RFC 2131, "Dynamic Host Configuration Protocol", March 1997
Source of RFC: dhc (int)
Errata ID: 488
Status: Held for Document Update
Type: Editorial
Publication Format(s) : TEXT
Reported By: Robert Floyd Jr
Date Reported: 2006-03-23
Held for Document Update by: Brian Haberman
Section 1.2 says:
In other related work, the path minimum transmission unit (MTU) discovery algorithm can determine the MTU of an arbitrary internet path [14].
It should say:
In other related work, the path maximum transmission unit (MTU) discovery algorithm can determine the MTU of an arbitrary internet path [14].
Errata ID: 6618
Status: Held for Document Update
Type: Editorial
Publication Format(s) : TEXT
Reported By: Rubén L.M.
Date Reported: 2021-06-22
Held for Document Update by: Eric Vyncke
Date Held: 2022-05-30
Section 3.1 says:
Server Client Server
(not selected) (selected)
v v v
| | |
| Begins initialization |
| | |
| _____________/|\____________ |
|/DHCPDISCOVER | DHCPDISCOVER \|
| | |
Determines | Determines
configuration | configuration
| | |
|\ | ____________/ |
| \________ | /DHCPOFFER |
| DHCPOFFER\ |/ |
| \ | |
| Collects replies |
| \| |
| Selects configuration |
| | |
| _____________/|\____________ |
|/ DHCPREQUEST | DHCPREQUEST\ |
| | |
| | Commits configuration
| | |
| | _____________/|
| |/ DHCPACK |
| | |
| Initialization complete |
| | |
. . .
. . .
| | |
| Graceful shutdown |
| | |
| |\ ____________ |
| | DHCPRELEASE \|
| | |
| | Discards lease
| | |
v v v
Figure 3: Timeline diagram of messages exchanged between DHCP
client and servers when allocating a new network address
It should say:
Server Client Server
(not selected) (selected)
v v v
| | |
| Begins initialization |
| | |
| _____________/|\_____________ |
|/DHCPDISCOVER | DHCPDISCOVER \|
| | |
Determines | Determines
configuration | configuration
| | |
|\ | ____________/|
| \_________ | /DHCPOFFER |
| DHCPOFFER\ |/ |
| \ | |
| Collects replies |
| \| |
| Selects configuration |
| | |
| _____________/|\____________ |
|/ DHCPREQUEST | DHCPREQUEST\ |
| | |
| | Commits configuration
| | |
| | _____________/|
| |/ DHCPACK |
| | |
| Initialization complete |
| | |
. . .
. . .
| | |
| Graceful shutdown |
| | |
| |\ ____________ |
| | DHCPRELEASE \|
| | |
| | Discards lease
| | |
v v v
Figure 3: Timeline diagram of messages exchanged between DHCP
client and servers when allocating a new network address
Notes:
alignment
Status: Rejected (1)
RFC 2131, "Dynamic Host Configuration Protocol", March 1997
Source of RFC: dhc (int)
Errata ID: 6447
Status: Rejected
Type: Technical
Publication Format(s) : TEXT
Reported By: Adrien de Croy
Date Reported: 2021-03-01
Rejected by: Eric Vyncke
Date Rejected: 2023-08-03
Section 2.2 says:
a client requests the use of an address for some period of time. The allocation mechanism (the collection of DHCP servers) guarantees not to reallocate that address within the requested time
It should say:
a client requests the use of an address for some period of time. The allocation mechanism (the collection of DHCP servers) may or may not be able or willing to grant a lease for the requested duration. Any lease duration it offers it then guarantees not to reallocate within the offered time
Notes:
It is simply ludicrous to imagine that clients are in control of the lease duration, and that servers will simply comply, regardless of resource availability.
--VERIFIER NOTES--
The text does not say that the DHCP servers must grant the requested leased time. I.e., the current text is OK.