[Dnsmasq-discuss] issues with WPAD/option 252 (was: Dnsmasq-discuss Digest, Vol 34, Issue 6)

Matthias Andree matthias.andree at gmx.de
Tue Mar 18 08:47:12 GMT 2008

"Clinton Lee Taylor" <clintonlee.taylor at gmail.com> writes:

> Greetings ...
>> >  anyone know why the option 252 are not sent/requested ?
>> It's entirely up to the DHCP-client which options to request.  And any
>> DHCP-server will only send those options requested.
>> If you tell us about the configuration of the client, someone on the
>> list may know something.  But it is probably off-topic, as it's not a
>> matter of changing the configuration of dnsmasq.
> I have had problems with the above line myself, one with the url one
> character short
> so mine looks like this ...
> # All options for DHCP and DNS WPAD ...
> #
> # set WPAD proxy location #
> dhcp-option=252,"http://wpad/wpad.dat "
> And I put it in the /etc/dnsmasq.d  as a file, so I can keep my main
> conf file cleaner ...

This has apparently to do with implementation idiosyncrasies (to put it
politely) in common WPAD clients (might that be Internet Explorer?) -
similar considerations (stuff blank or line feed) also hold if you're
using ISC dhcpd.

Matthias Andree

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