Linksys AC Series Router Configuration Tips for OpenWRT: Difference between revisions
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But also keep in mind the settings changes in the /etc/init.d/dhcpd startup script only affect the DHCPD service. The /etc/resolv.conf File still derives its settings from the /etc/config/dhcp File when the DHCPD service is restarted or the router is rebooted (same for DNSMASQ). IE, the /etc/config/dhcp File should not be completely dismissed as useless. | But also keep in mind the settings changes in the /etc/init.d/dhcpd startup script only affect the DHCPD service. The /etc/resolv.conf File still derives its settings from the /etc/config/dhcp File when the DHCPD service is restarted or the router is rebooted (same for DNSMASQ). IE, the /etc/config/dhcp File should not be completely dismissed as useless. | ||
==== Restricting the DHCPD Service to only Answer / Listen on Desired Interfaces ==== | |||
To restrict the DHCPD service to a specific interface, edit the /etc/init.d/dhcpd file, scroll way down to the start_service section, and look for the following line; | |||
* procd_set_param command $PROG -q -f -cf $config_file -lf $lease_file $dhcp_ifs | |||
Change it in similar manner to the below examples; | |||
* procd_set_param command $PROG WhatEverAdapterName WhatEverOtherAdapterName -q -f -cf $config_file -lf $lease_file $dhcp_ifs | |||
* procd_set_param command $PROG eth0.1 br-LAN1_1 -q -f -cf $config_file -lf $lease_file $dhcp_ifs | |||
Many sites suggest that creating a blank / empty zone for the subnet (on a multi-homed device) will make it so DHCPD doesn't answer for those interfaces. But testing has prooven otherwise. The below settings in /etc/dhcpd/dhcpd.conf will '''''00000000000000000000000000''''' prevent the DHCPD service from answering on the interface associated with the W.X.Y.Z IP Address;<syntaxhighlight lang="text"> | |||
subnet W.X.Y.Z netmask 255.255.255.0 { | |||
} | |||
</syntaxhighlight>The Edit Network Interfaces Button and Interfaces File Type setting in Webmin will not work with OpenWRT. | |||
====Special Note==== | ====Special Note==== | ||
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hostnet_list= | hostnet_list= | ||
</syntaxhighlight>Items such as dhcpd_version can be modified to reflect whatever version of DHCPD is available in the future. No modifications need to be made to the /overlay/webmin/dhcpd/module.info (assuming the root path of Webmin is /overlay) file as this Module seems to be compatible with every version of DHCPD on every Linux distribution. | </syntaxhighlight>Items such as dhcpd_version can be modified to reflect whatever version of DHCPD is available in the future. No modifications need to be made to the /overlay/webmin/dhcpd/module.info (assuming the root path of Webmin is /overlay) file as this Module seems to be compatible with every version of DHCPD on every Linux distribution. | ||
The Edit Network Interfaces Button and Interfaces File Type setting in Webmin will not work with OpenWRT. | |||
====Samba Server Webmin Module (/etc/webmin/samba/config)==== | ====Samba Server Webmin Module (/etc/webmin/samba/config)==== | ||