[Dnsmasq-discuss] dns-server in opts file doesn't work

[Simon Kelley]

On 17/12/13 12:30, Shixiong Shang wrote:
> Hi, experts:
>
> I tried to leverage opts file to modify the recursive dns server IP conveyed in RA. The entry in the opts file is shown below:
>
> tag:tag1,option6:dns-server,[2001:4860:4860::8888]
>
> I tcpdumped the outgoing RA message, but the dns server IP is still set to the IPv6 address dnsmasq bound to. However, if I use "--dhcp-option=tag:tag1,option6:dns-server,[2001:4860:4860::8888]” as an option in the CLI, then it worked in the way as expected.
>
> Is there anything I did wrong in the opts file? It is still my preferred approach to use opts file.

I can't see any problem with that

Just to be sure, you're using --dhcp-optsfile=/path/to/file and the 
lines in /path/to/file are

tag:tag1,option6:dns-server,[2001:4860:4860::8888]

and _not_

dhcp-option=tag:tag1,option6:dns-server,[2001:4860:4860::8888]

and you remebered to restart dnsmasq or send SIGHUP after you altered 
the file?

That covers all the mistakes that people usually make with this.


Cheers,

Simon.

>
> Thanks!
>
> Shixiong
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