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Feature #9285

closed

Add an option to disable the ping-check in dhcpd

Added by Arthur Wiebe almost 6 years ago. Updated about 5 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
Jim Pingle
Category:
DHCP (IPv4)
Target version:
2.4.5
Start date:
01/22/2019
Due date:
% Done:

100%

Estimated time:
Plus Target Version:
Release Notes:

Description

In experiencing some strange DHCP behavior at a customer site, where DHCP leases were getting abandoned and never re-used causing the pool to fill up and run out of available IPs, the solution was to turn off the ping-check in dhcpd.conf.
The problem is that currently in pfSense that conf option is hard-coded and there is no way to override it.

I've created a patch to test it with the site, where it's not working. I'll submit a pull request for your consideration.

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 #1

Updated by Renato Botelho over 5 years ago

  • Status changed from New to Feedback
  • Assignee set to Renato Botelho
  • Target version set to 2.5.0
  • % Done changed from 0 to 100

PR has been merged. Thanks!

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 #2

Updated by Chris Linstruth over 5 years ago

This looks like it should be added on a per-subnet basis instead of globally. As this patch stands right now if you disable ping check on an earlier subnet and it is unchecked in a later subnet, you still get a global ping-check true; in the dhcpd.conf file.

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 #3

Updated by Jim Pingle over 5 years ago

  • Status changed from Feedback to New
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 #4

Updated by Renato Botelho over 5 years ago

  • Status changed from New to Feedback
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 #5

Updated by Viktor Gurov about 5 years ago

Renato Botelho wrote:

Applied in changeset 5197e3e3a3b0ee048785e2ffb4222d7cba4e6c74.

Tested on 2.5.0.a.20191011.1853

# grep ping /var/dhcpd/etc/dhcpd.conf:
        ping-check false;

Resolved

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 #6

Updated by Jim Pingle about 5 years ago

  • Status changed from Feedback to Resolved
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 #7

Updated by Jim Pingle about 5 years ago

  • Target version changed from 2.5.0 to 2.4.5
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 #8

Updated by Jim Pingle about 5 years ago

  • Status changed from Resolved to Feedback

Needs checked and/or tested again on 2.4.5 snapshots

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 #9

Updated by Jim Pingle about 5 years ago

  • Status changed from Feedback to In Progress
  • Assignee changed from Renato Botelho to Jim Pingle

It looks like the main part of this PR was not picked back, only a later commit

PR link: https://github.com/pfsense/pfsense/pull/4043

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 #11

Updated by Jim Pingle about 5 years ago

  • Status changed from Feedback to Resolved

Option is now present in the GUI and appears to work as expected on a per-subnet basis.

2.4.5.a.20191220.0501

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