IPv4/IPv6/MAC Address & ARP Table Page Empty

[Jason_Cheng]

I do not know which version is updated recently, these pages are empty, is there a place to adjust it?

Whether someone has experience can provide a reference?

For example, the picture below:

====================================
Component | Version
--------- | -------
LibreNMS  | 1.48.1-98-g218b6b8
DB Schema | 2019_02_10_220000_add_dates_to_fdb (132)
PHP       | 7.2.15-1+ubuntu16.04.1+deb.sury.org+1
MySQL     | 10.0.38-MariaDB-0ubuntu0.16.04.1
RRDTool   | 1.5.5
SNMP      | NET-SNMP 5.7.3
====================================

[OK]    Composer Version: 1.8.4
[OK]    Dependencies up-to-date.
[OK]    Database connection successful
[OK]    Database schema correct

[murrant]

Check your librenms.log and the output of the table ajax request (from web browser dev tools) for errors.

[Jason_Cheng]

Thank you for your reply.

Librenms.log has no error output.
Ajax debug info is shown below with an error

[Jason_Cheng]

I know why. Maybe the returned hostname of device SNMP has a newline character.

[Jason_Cheng]

The Device is “MegaTec NetAgent II”

[Jason_Cheng]

Using SNMP capture results:

[Jason_Cheng]

I have fixed this situation and submitted a Pull Request.

Fixed sysName can't display because newline character

[Jason_Cheng]

This PR modification method is not good enough. In addition, I will submit a new PR:

Fixed sysName can't display because newline character