From mboxrd@z Thu Jan 1 00:00:00 1970 To: <9fans@9fans.net> References: <6c6ff42f-af6e-f413-969c-763b8cdd51e8@gmail.com> From: David Pick Message-ID: <08ad023d-ce5d-9676-0363-9fa2d7627500@qmul.ac.uk> Date: Sat, 15 Apr 2017 07:19:48 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: <6c6ff42f-af6e-f413-969c-763b8cdd51e8@gmail.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Pi3 with 2 nics Topicbox-Message-UUID: b9fd2fe6-ead9-11e9-9d60-3106f5b1d025 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 Normal working days are Monday to Wednesday inclusive Worried about Cyber Security? Check out the Cyber Security Information and Training described at http://connect.qmul.ac.uk/qmandyou/staff/items/2016/item177974.html