[Dnsmasq-discuss] Configuring DHCPv6 Vendor specific information using Option 17

[Simon Kelley]

On 14/03/2019 03:13, P, Sreelakshmi wrote:
> Thanks Simon, this works!
> 
> In case of DHCP v4 vendor option, it's not mandatory to provide encapsulated vendor specific information. Here in DHCPv6, I see that the option 17 doesn't work without giving enterprise ID for encapsulation. Why so?

I think because the only defined form of vendor-specific option defined
for DHCPv6 is the so-called vendor-identifying vendor specific option,
which includes the vendor-id as part of the option. If the option format
includes the vendor-id then the vendor-id must be provided.

> Also, is there a way to give hex as vendor option value that can include enterprise ID as well?
> 
--dhcp-option=vi-encap:47196,option6:100,11:22:33:44:55:66:77

should work.


Simon.


> Regards,
> Sree
> 
> -----Original Message-----
> From: Dnsmasq-discuss [mailto:dnsmasq-discuss-bounces at lists.thekelleys.org.uk] On Behalf Of Simon Kelley
> Sent: Tuesday, March 5, 2019 4:04 AM
> To: dnsmasq-discuss at lists.thekelleys.org.uk
> Subject: Re: [Dnsmasq-discuss] Configuring DHCPv6 Vendor specific information using Option 17
> 
> You need something like
> 
> --dhcp-option=vi-encap:47196,option6:100,\
> "AOS-Switch:Top:Tokyo,3ffe:501:ffff:100::abcd,aruba123"
> 
> 
> Check the vendor-specific option number. I got the value of 100 from the data you provided, but I may have decoded it wrong.
> 
> Cheers,
> 
> Simon.
> 
> 
> On 04/03/2019 10:01, P, Sreelakshmi wrote:
>> Hi All,
>>
>>  
>>
>> How to we configure vendor specific information in dnsmasqv6 using 
>> option 17?
>>
>>  
>>
>> Every time I tried to configure option 17 as below :
>>
>>  
>>
>> dnsmasq
>> --dhcp-option=option6:17,003d0000b85c00640035414f532d5377697463683a546
>> f703a546f6b3
>> -test
>>
>>  
>>
>> I ended up getting the below error:
>>
>>                 dnsmasq: bad command line options: bad IPv6 address
>>
>>  
>>
>>  
>>
>> What is the proper way to configure option 17 in dnsmasq? Below is my 
>> enterprise id and data:
>>
>>  
>>
>> Enterprise Id : *47196*
>>
>> Data : *¸\d5AOS-Switch:Top:Tokyo,3ffe:501:ffff:100::abcd,aruba123*
>>
>>  
>>
>> If we try to configure the same value using other DHCPv6 servers, it 
>> works fine.
>>
>> Any example? Can we configure the value as ASCII or HEX? Any help will 
>> be greatly appreciated.
>>
>>  
>>
>> Regards,
>>
>> Sree
>>
>>  
>>
>>
>> _______________________________________________
>> Dnsmasq-discuss mailing list
>> Dnsmasq-discuss at lists.thekelleys.org.uk
>> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
>>
> 
> 
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