[9fans] Pi3 with 2 nics

[9fans] Pi3 with 2 nics

[Adriano Verardo]

Hi all,
I have a pi3 with normal and wifi eth interfaces under the same stack.
Wifi address is 10.12.12.15/16, the address of the other nic is
10.11.12.15/16,
/net seems to be correct, the connection to the AP is up and running.
But:

(1) ping wifi 10.12.12.15 doesn't work when the Rj45 is unplugged
(2) ping wifi 10.12.12.15 works when the Rj45 is plugged
(3) the arp tables on the net all have a correct 10.12.12.15 entry
(4) ip/ping -a to 10.11.x.x or 10.12.x.x always displays
      10.11.12.15 -> ...   and doesn't work when the cable is unplugged.
(5) with/without cable, "snoopy /net/ether1" (wifi nic) shows
      icmp packets when pinging.

I'm quite confused.
Could anyone kindly tell me where is my mistake  ?

Thank you so much
adriano

Re: [9fans] Pi3 with 2 nics

[Jules Merit]

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9snuf faces of death just got updated

On Apr 14, 2017 3:39 PM, "Adriano Verardo" <adr.verardo@gmail.com> wrote:

> Hi all,
> I have a pi3 with normal and wifi eth interfaces under the same stack.
> Wifi address is 10.12.12.15/16, the address of the other nic is
> 10.11.12.15/16,
> /net seems to be correct, the connection to the AP is up and running.
> But:
>
> (1) ping wifi 10.12.12.15 doesn't work when the Rj45 is unplugged
> (2) ping wifi 10.12.12.15 works when the Rj45 is plugged
> (3) the arp tables on the net all have a correct 10.12.12.15 entry
> (4) ip/ping -a to 10.11.x.x or 10.12.x.x always displays
>      10.11.12.15 -> ...   and doesn't work when the cable is unplugged.
> (5) with/without cable, "snoopy /net/ether1" (wifi nic) shows
>      icmp packets when pinging.
>
> I'm quite confused.
> Could anyone kindly tell me where is my mistake  ?
>
> Thank you so much
> adriano
>
>
>
>
>
>

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Re: [9fans] Pi3 with 2 nics

[Steve Simon]

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could you explain this?
what is 9snuf?

-Steve


> On 15 Apr 2017, at 00:06, Jules Merit <jules.merit.eurocorp.us@gmail.com> wrote:
> 
> 9snuf faces of death just got updated
> 
>> On Apr 14, 2017 3:39 PM, "Adriano Verardo" <adr.verardo@gmail.com> wrote:
>> Hi all,
>> I have a pi3 with normal and wifi eth interfaces under the same stack.
>> Wifi address is 10.12.12.15/16, the address of the other nic is 10.11.12.15/16,
>> /net seems to be correct, the connection to the AP is up and running.
>> But:
>> 
>> (1) ping wifi 10.12.12.15 doesn't work when the Rj45 is unplugged
>> (2) ping wifi 10.12.12.15 works when the Rj45 is plugged
>> (3) the arp tables on the net all have a correct 10.12.12.15 entry
>> (4) ip/ping -a to 10.11.x.x or 10.12.x.x always displays
>>      10.11.12.15 -> ...   and doesn't work when the cable is unplugged.
>> (5) with/without cable, "snoopy /net/ether1" (wifi nic) shows
>>      icmp packets when pinging.
>> 
>> I'm quite confused.
>> Could anyone kindly tell me where is my mistake  ?
>> 
>> Thank you so much
>> adriano
>> 
>> 
>> 
>> 
>> 

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Re: [9fans] Pi3 with 2 nics

[Jules Merit]

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#cnn #facebook
Sister Myriam Godwin son
Kill -9

On Apr 15, 2017 9:06 AM, "Steve Simon" <steve@quintile.net> wrote:


could you explain this?
what is 9snuf?

-Steve


On 15 Apr 2017, at 00:06, Jules Merit <jules.merit.eurocorp.us@gmail.com>
wrote:

9snuf faces of death just got updated

On Apr 14, 2017 3:39 PM, "Adriano Verardo" <adr.verardo@gmail.com> wrote:

> Hi all,
> I have a pi3 with normal and wifi eth interfaces under the same stack.
> Wifi address is 10.12.12.15/16, the address of the other nic is
> 10.11.12.15/16,
> /net seems to be correct, the connection to the AP is up and running.
> But:
>
> (1) ping wifi 10.12.12.15 doesn't work when the Rj45 is unplugged
> (2) ping wifi 10.12.12.15 works when the Rj45 is plugged
> (3) the arp tables on the net all have a correct 10.12.12.15 entry
> (4) ip/ping -a to 10.11.x.x or 10.12.x.x always displays
>      10.11.12.15 -> ...   and doesn't work when the cable is unplugged.
> (5) with/without cable, "snoopy /net/ether1" (wifi nic) shows
>      icmp packets when pinging.
>
> I'm quite confused.
> Could anyone kindly tell me where is my mistake  ?
>
> Thank you so much
> adriano
>
>
>
>
>
>

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Re: [9fans] Pi3 with 2 nics

[Steve Simon]

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Ah, Mr Shaney lives!

> On 18 Apr 2017, at 05:37, Jules Merit <jules.merit.eurocorp.us@gmail.com> wrote:
> 
> #cnn #facebook
> Sister Myriam Godwin son
> Kill -9 
> 
> On Apr 15, 2017 9:06 AM, "Steve Simon" <steve@quintile.net> wrote:
> 
> could you explain this?
> what is 9snuf?
> 
> -Steve
> 
> 
>> On 15 Apr 2017, at 00:06, Jules Merit <jules.merit.eurocorp.us@gmail.com> wrote:
>> 
>> 9snuf faces of death just got updated
>> 
>>> On Apr 14, 2017 3:39 PM, "Adriano Verardo" <adr.verardo@gmail.com> wrote:
>>> Hi all,
>>> I have a pi3 with normal and wifi eth interfaces under the same stack.
>>> Wifi address is 10.12.12.15/16, the address of the other nic is 10.11.12.15/16,
>>> /net seems to be correct, the connection to the AP is up and running.
>>> But:
>>> 
>>> (1) ping wifi 10.12.12.15 doesn't work when the Rj45 is unplugged
>>> (2) ping wifi 10.12.12.15 works when the Rj45 is plugged
>>> (3) the arp tables on the net all have a correct 10.12.12.15 entry
>>> (4) ip/ping -a to 10.11.x.x or 10.12.x.x always displays
>>>      10.11.12.15 -> ...   and doesn't work when the cable is unplugged.
>>> (5) with/without cable, "snoopy /net/ether1" (wifi nic) shows
>>>      icmp packets when pinging.
>>> 
>>> I'm quite confused.
>>> Could anyone kindly tell me where is my mistake  ?
>>> 
>>> Thank you so much
>>> adriano
>>> 
>>> 
>>> 
>>> 
>>> 
> 

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Re: [9fans] Pi3 with 2 nics

[David Pick]

On 14/04/17 23:37, Adriano Verardo wrote:

> I have a pi3 with normal and wifi eth interfaces under the same stack.
> Wifi address is 10.12.12.15/16, the address of the other nic is
> 10.11.12.15/16,
> /net seems to be correct, the connection to the AP is up and running.
> But:
>
> (1) ping wifi 10.12.12.15 doesn't work when the Rj45 is unplugged
> (2) ping wifi 10.12.12.15 works when the Rj45 is plugged
> (3) the arp tables on the net all have a correct 10.12.12.15 entry
> (4) ip/ping -a to 10.11.x.x or 10.12.x.x always displays
>      10.11.12.15 -> ...   and doesn't work when the cable is unplugged.
> (5) with/without cable, "snoopy /net/ether1" (wifi nic) shows
>      icmp packets when pinging.
>
> I'm quite confused.
> Could anyone kindly tell me where is my mistake  ?

When this situation occurs on *any* OS I'd check the "defaut" route
and/or the connectivity of the other end. You don't say what the
connectivity of the other end is for the tests you've performed
and it makes a difference to the ability of the pi3 to respond via
the correct interface.

--
David Pick
Network Security Manager, IT Services
Queen Mary University of London
TB202,  Mile End Road, London E1 4NS
Tel: +44 (0) 20 7882 7079
Mob: +44 (0) 7973 379 161
E-Mail: D.M.Pick@qmul.ac.uk

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