Re: Question about Option 252 for Web Proxy Auto-Discovery

Hi Richard,

The definitive answer is in the dhcp-options man page:

     REFERENCE: OPTION STATEMENTS

         The text data type specifies an NVT ASCII string, which must be 
enclosed in double quotes - for example, to specify a root-path option, 
the syntax would be
         option root-path "10.0.1.4:/var/tmp/rootfs";

and further down that same document

        TEXT

        option new-name code new-code = text ;

        An option whose type is text will encode an ASCII text string.  
For example:

        option sql-default-connection-name code 194 = text;
        option sql-default-connection-name "PRODZA";

regards,
Glenn

On 2021-09-10 16:57, Bill Shirley wrote:

> # local proxy autodiscovery
> option local-pac-server            code 252 = text;
> 
> subnet 192.168.1.0 netmask 255.255.255.0 {
> option local-pac-server         "http://www.example.com/wpad.dat";
> .
> }
> 
> Bill
> 
> On 9/8/2021 12:30 PM, perl-list wrote:
> 
> I have no specific knowledge of option 252, but, generally speaking in 
> the dhcp config file when defining a string value, it is usually in 
> quotes.  I would guess that to be the case with this as well.
> 
> ----- Original Message -----
> 
> From: "Parkin, Richard (R.)" <[email protected]>
> To: "Users of ISC DHCP" <[email protected]>
> Sent: Wednesday, September 8, 2021 10:09:04 AM
> Subject: Question about Option 252 for Web Proxy Auto-Discovery
> 
> Greetings!
> 
> I have a question about configuring Option 252 for Web Proxy 
> Auto-Discovery.
> 
> Our IPAM allowed me to generate a configuration statement that 
> resembles this:
> 
> option 252 http://example.com/wpad.dat;
> 
> What I am wondering is if the URL string needs to be quoted for this to 
> work,
> like so:
> 
> option 252 "http://example.com/wpad.dat";
> 
> I haven't been able to find a definitive answer. Is it safer to assume 
> the
> quotes are needed?
> 
> Thanks!
> 
> --
> 
> Rich Parkin
> 
> Ford Motor Company
> 
> DDI Planner (DNS, DHCP, IPAM)
> 
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> 
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_______________________________________________
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