Linux Format forums

Re: openwrt using dhcp host names over hosts

nelz — Fri Jul 20, 2012 7:47 am

Author: nelz

Posted: Fri Jul 20, 2012 7:47 am

Wouldn't it be simpler to deal with the cause of the problem and disable the wireless NIC by blacklisting its module?

Re: openwrt using dhcp host names over hosts

Dutch_Master — Fri Jul 20, 2012 12:37 am

Author: Dutch_Master

Posted: Fri Jul 20, 2012 12:37 am

Yes, you can specify in which order DNS should do the (reverse) lookup, can't remember where though... Also, it is possible to have the DHCP server assign an IP to a specific MAC address. And if possible (can't tell) you may want to blacklist the MAC address of the wifi card in "civo" as to disallow it to make contact that way.

openwrt using dhcp host names over hosts

bobthebob1234 — Fri Jul 20, 2012 12:21 am

Author: bobthebob1234

Posted: Fri Jul 20, 2012 12:21 am

Not a show stopper, but a minor annoyance

I have my mythtv box called civo, with a static ip of 192.168.1.10. Sometimes it decides it wants to connect to my network over wifi, and then picks up a dhcp address (eg 192.168.1.100).

When this happens and I ping civo, I get 192.168.1.100. Not what I want. I have set up 'civo' as a hostname, pointing to 192.168.1.10 in the openwrt web interface.

I believe openwrt uses Dnsmasq for DNS stuff, so it is probably a problem / 'feature' with that.

Can it be stopped or the order of lookup reversed, so it uses the hosts I have defined first?