[cups.general] auto-discover of network printers relies on ip6?
Michael Sweet
msweet at apple.com
Tue Apr 3 09:23:31 PDT 2012
Willie,
I'd check your /etc/cups/snmp.conf file to see what it there (it *should* be using @LOCAL for the address, which automatically uses the right broadcast addresses).
On Apr 3, 2012, at 6:32 AM, willie <tumbleweed at fast-mail.org> wrote:
>
> Thanks again.
>
> /usr/lib/cups/backend/snmp @LOCAL
>
> returns:
>
> network lpd://leda/BINARY_P1 "Brother HL-5250DN series" "Brother HL-5250DN series" "MFG:Brother;CMD:PJL,PCL,PCLXL,POSTSCRIPT;MDL:HL-5250DN series;CLS:PRINTER;" ""
>
> ..which looks ok to my cups-novice eyes. Do you think this is an issue with my configs (as I do, suspecting many others would have been here before and said something's wrong) or do we have a bug?
>
> Tonight I'll try someone else's machine here running a different distro.
> Willing to try anything else on your advice.
>
>
>
>
>
>> Hmm, not sure why this is having trouble then... Do you see any errors if you run:
>>
>> /usr/lib/cups/backend/snmp @LOCAL
>>
>> On Mar 26, 2012, at 4:24 PM, willie wrote:
>>
>>>
>>> I hadn't even thought of looking at the printer config, but no:
>>>
>>> TCP/IP Enabled
>>> IPv6 Disabled
>>> SMTP Disabled
>>> NETBIOS/IP Enabled
>>> IPP Enabled
>>> FTP Enabled
>>> mDNS Disabled
>>> APIPA Disabled
>>> SNMP Enabled
>>> Web Server Enabled
>>> TELNET Enabled
>>>
>>>
>>>
>>>
>>>> Is the Brother printer configured to only support IPv6?
>>>>
>>>> On Mar 24, 2012, at 2:11 PM, willie <tumbleweed at fast-mail.org> wrote:
>>>>
>>>>>
>>>>> Hello folks,
>>>>>
>>>>> I wouldn't know if this is a bug or not but I'd sure like to understand what's happening.
>>>>>
>>>>> I'm running linux 3.2.12/cups 1.5.2.
>>>>>
>>>>> Since disabling the ip6 stack with kernel argument "ipv6.disable=1", cups fails to discover network printers on the cups server web page (localhost:631). If I remove that kernel line parameter and reinstate ip6, all is well again.
>>>>>
>>>>> I've failed to find any info out there to suggest that cups *depends* on ipv6.
>>>>>
>>>>> I use static IP addressing and the problem occurs with both wired and wireless networking.
>>>>>
>>>>> (If it's relevant, one printer that's no longer discovered without an ipv6 stack is a Brother HL-5250dn.)
>>>>>
>>>>> Can anyone help?
>>>>>
>>>>> Thanks.
>>>>> _______________________________________________
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>>>>> http://lists.easysw.com/mailman/listinfo/cups
>>>>
>>>> __________________________________________________
>>>> Michael Sweet, Senior Printing System Engineer, PWG Chair
>>>>
>>>
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>>
>> ________________________________________________________________________
>> Michael Sweet, Senior Printing System Engineer, PWG Chair
>>
>
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__________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair
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