Difference between revisions of "Troubleshooting DHCP issues"
From Notes_Wiki
(Created page with "<yambe:breadcrumb>Dhcp_server_configuration|Dhcp server configuration</yambe:breadcrumb> =Troubleshooting DHCP issues= ==Restrictive firewall issue== DHCP will not work if o...") |
m |
||
| Line 1: | Line 1: | ||
[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[Dhcp server configuration]] > [[Troubleshooting DHCP issues]] | |||
==Restrictive firewall issue== | ==Restrictive firewall issue== | ||
| Line 9: | Line 8: | ||
</pre> | </pre> | ||
might get appended to /var/log/messages and monitoring systems should pick up these as unknown message. The problem can be easily resolved by updating firewall to allow outgoing packets to UDP port 67. | might get appended to /var/log/messages and monitoring systems should pick up these as unknown message. The problem can be easily resolved by updating firewall to allow outgoing packets to UDP port 67. | ||
[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[Dhcp server configuration]] > [[Troubleshooting DHCP issues]] | |||
Latest revision as of 11:07, 14 July 2022
Home > CentOS > CentOS 6.x > Dhcp server configuration > Troubleshooting DHCP issues
Restrictive firewall issue
DHCP will not work if outgoing packets to UDP port 67 are not allowed in firewall. In such cases messages:
Failed to send 300 byte long packet over fallback interface
might get appended to /var/log/messages and monitoring systems should pick up these as unknown message. The problem can be easily resolved by updating firewall to allow outgoing packets to UDP port 67.
Home > CentOS > CentOS 6.x > Dhcp server configuration > Troubleshooting DHCP issues
