Am 22.12.2017 um 17:33 schrieb Tom Eastep:
> On 12/22/2017 08:09 AM, Oliver Freyermuth via Shorewall-users wrote:
>> Dear Shorewallers,
>>
>> since the problem is rather pinned down already and easy to reproduce, let 
>> me try with a minimal bugreport - if more info is really needed, just let me 
>> know. 
>>
>> I am using shorewall 6, version 5.1.9. 
>>
>> If I specify in "interfaces":
>> net             +                       dhcp,routeback,optional
>> then the ACCEPT rules for 546:547 (DHCPv6) are not created(!). 
>>
>> If I specify:
>> net             eth0                       dhcp,routeback,optional
>> it works fine, and I observe the 546:547 udp rules being created. 
>>
>> So the problem only exists if the interface is a "+" matching string (also 
>> e.g. "e+" fails). 
>> I'm right now helping myself with a macro.DHCPv6 opening 546:547 udp, which 
>> I just ACCEPT from net. 
>>
> 
> You can also work around the problem by changing your interfaces entry to:
> 
> net         all             dhcp,routeback,optional,physical=+
Many thanks, this is indeed a significantly cleaner workaround! 
I can confirm it works just as well. 

Still: Is this a bug / inconvenience to be fixed in a later version, or rather 
a "gotcha" to go in the FAQ? 

Many thanks again,
Oliver
> 
> -Tom
> 
> 
> 
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