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Bug #12938

open

radvd incorrectly warns about AdvRDNSSLifetime value

Added by Louis B about 2 years ago. Updated 8 months ago.

Status:
Feedback
Priority:
Normal
Assignee:
Marcos M
Category:
IPv6 Router Advertisements (radvd/rtsold)
Target version:
-
Start date:
Due date:
% Done:

100%

Estimated time:
Plus Target Version:
Release Notes:
Default
Affected Version:
All
Affected Architecture:

Description

Hello,

I now this is not the first time that this issue pops up, however never the less it is not ok. (refer to e.g. Bug #11105 closed
IPv6 RA RDNSS lifetime is too short, not compliant with RFC 8106)

However I get thousands (!!) of messages a day like

Mar 12 15:47:15 pfSense radvd[42079]: warning: (/var/etc/radvd.conf:360) AdvRDNSSLifetime <= 2*MaxRtrAdvInterval would allow stale DNS servers to be deleted faster
Mar 12 15:47:15 pfSense radvd[42079]: warning: AdvRDNSSLifetime <= 2*MaxRtrAdvInterval would allow stale DNS servers to be deleted faster
Mar 12 15:47:15 pfSense radvd[42079]: warning: AdvDNSSLLifetime <= 2*MaxRtrAdvInterval would allow stale DNS suffixes to be deleted faster

So please take care. If necessary in contact with the radvd developers

Louis

Related issues

Related to Regression #14768: "syslog: unknown facility name "radvd"" error when "Routing Daemon Events (RADVD, UPnP, RIP, OSPF, BGP)" option is enabledResolvedMarcos M

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 #1

Updated by Louis B over 1 year ago

I still get thousands of messages like:

0:21:29 pfSense radvd[19033]: warning: AdvDNSSLLifetime <= 2*MaxRtrAdvInterval would allow stale DNS suffixes to be deleted faster
Aug 17 20:21:29 pfSense radvd[19033]: warning: (/var/etc/radvd.conf:388) AdvRDNSSLifetime <= 2*MaxRtrAdvInterval would allow stale DNS servers to be deleted faster
Aug 17 20:21:29 pfSense radvd[19033]: warning: AdvRDNSSLifetime <= 2*MaxRtrAdvInterval would allow stale DNS servers to be deleted faster

I hope to see it fixed soon :(

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 #2

Updated by Marcos M 8 months ago

  • Subject changed from MaxRtrAdvInterval would allow stale DNS servers to be deleted faster to radvd incorrectly warns about AdvRDNSSLifetime value
  • Status changed from New to Pull Request Review
  • Assignee set to Marcos M

The warning can be ignored. It is shown due to the current radvd version not taking RFC8106 into account. A fix has been merged, but a new version has not been released with the fix. Additional discussion here:
https://forum.netgate.com/topic/164399/

The following MR changes the logging verbosity of radvd to error and higher (previously it logged all):
https://gitlab.netgate.com/pfSense/pfSense/-/merge_requests/1069

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 #3

Updated by Marcos M 8 months ago

  • Description updated (diff)
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 #4

Updated by Marcos M 8 months ago

  • Status changed from Pull Request Review to Feedback
  • % Done changed from 0 to 100
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 #5

Updated by Jim Pingle 8 months ago

  • Related to Regression #14768: "syslog: unknown facility name "radvd"" error when "Routing Daemon Events (RADVD, UPnP, RIP, OSPF, BGP)" option is enabled added
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