No such feature when running in AP mode. AP mode gives options of wireless
settings (SSID etc) and IP for management of the device.


On Thu, Oct 29, 2020 at 2:17 AM TJ Trout <t...@pcguys.us> wrote:

> Have you tried disabling the 'redirect when wan down' feature? I'm
> guessing they hijack the dns to redirect the user to a captive portal "your
> internet is down" error page possibly?
>
> On Wed, Oct 28, 2020 at 1:42 PM Anurag Bhatia <m...@anuragbhatia.com> wrote:
>
>> I tried deleting the rule and it drops the traffic completely. So DNS
>> resolution stops working and I am unsure why. It's not like default drop or
>> anything. I can edit the rule and whatever active port 53 related rule is
>> there works. But I want case of no such rule at all. :-)
>>
>>
>> I setup pihole on Intel NUC little while ago and all Pihole gets is 100%
>> of wifi client traffic behind Asus wifi management IP. :-\
>>
>>
>> Plus no matter what DNS I put, queries goes via whatever router gave up
>> when Asus booted up.
>>
>>
>> Here's how creepy it gets:
>>
>> On Rasberry Pi (which is not behind Asus AP but a different switch)
>>
>> anurag@raspberrypi:~ $ dig whoami.akamai.com @1.1.1.1 a +short
>> whoami.akamai.net.
>> 162.158.226.218
>> anurag@raspberrypi:~ $ dig whoami.akamai.com @8.8.8.8 a +short
>> whoami.akamai.net.
>> 172.253.244.3
>> anurag@raspberrypi:~ $ dig whoami.akamai.com @9.9.9.9 a +short
>> whoami.akamai.net.
>> 103.224.242.10
>> anurag@raspberrypi:~ $
>>
>> All normal and good.
>>
>>
>>
>> Now, from the device (which is behind Asus AP):
>>
>>  ~> dig whoami.akamai.net @1.1.1.1 a +short
>> 172.217.34.65
>>
>> ~> dig whoami.akamai.net @8.8.8.8 a +short
>> 172.217.34.65
>>
>> ~> dig whoami.akamai.net @9.9.9.9 a +short
>> 172.217.34.65
>>
>> dig whoami.akamai.net @1.2.3.4 a +short
>> 172.217.34.65
>>
>> dig whoami.akamai.net @5.6.7.8 a +short
>> 172.217.34.65
>>
>>
>> Essentially Asus picked 8.8.8.8 because I put that during the test and
>> rebooted the AP. I will stick with 8.8.8.8 until DHCP lease expires and the
>> new server is provided.
>>
>>
>> On Thu, Oct 29, 2020 at 2:01 AM Neil Hanlon <n...@shrug.pw> wrote:
>>
>>> And if so, can you set up your own service to remove their iptables rule
>>> after it's been added or otherwise counteract it.
>>>
>>> At least temporarily, anyways.
>>>
>>> -Neil
>>>
>>> On Wed, Oct 28, 2020 at 4:26 PM Ryan Hamel <r...@rkhtech.org> wrote:
>>>
>>>> I'm curious to know why they would add such a thing, and how you got
>>>> the iptables rules from the device. Do these Asus routers provide SSH
>>>> directly into the shell?
>>>>
>>>> Ryan
>>>> On Oct 28 2020, at 11:33 am, Anurag Bhatia <m...@anuragbhatia.com> wrote:
>>>>
>>>> Hello,
>>>>
>>>> Wondering anyone from Asus here or anyone who could connect me to the
>>>> developers there?
>>>>
>>>> Using Asus RT-AC58U in Access Point(AP) mode and expect it to simply
>>>> bridge wired with wireless but seems like it's re-writing DNS packets
>>>> source as well as the destination.
>>>>
>>>>
>>>>    1. DNS port 53 traffic going out, the source is re-written with the
>>>>    management IP of the AP on the LAN. So virtually all DNS traffic hits 
>>>> the
>>>>    router from the (management) IP of the Asus AP instead of real clients.
>>>>
>>>>    2. If I define DNS as x.x.x.x on DHCP, the Asus AP picks that up
>>>>    and re-writes destination to x.x.x.x and hence even if any client uses
>>>>    y.y.y.y, the packets are simply re-written.
>>>>
>>>>
>>>> I see the rule in iptables on Asus AP. All these issues give an idea
>>>> that someone created AP mode (besides regular routing mode) and missed to
>>>> disable the DNS related NATing features in the AP mode. So far my
>>>> discussions with their support have been going quite slow and would greatly
>>>> appreciate if someone could connect me to right folks in there so they can
>>>> release a firmware fix for it.
>>>>
>>>>
>>>>
>>>> Thanks.
>>>>
>>>> --
>>>> Anurag Bhatia
>>>> anuragbhatia.com
>>>>
>>>>
>>
>> --
>> Anurag Bhatia
>> anuragbhatia.com
>>
>

-- 
Anurag Bhatia
anuragbhatia.com

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