-->
Page 1 of 1

Arduino IDE WiFi Webserver examples unstable? (Trying nmap)

PostPosted: Sat Aug 15, 2015 11:30 pm
by hughanderson
Hi,
When I run the ESP8266 example webservers from the Arduino IDE they mostly work fine.
However, if I run nmap against the particular ESP8266 unit, it ends up doing a wdt reset.
I have seen the behaviour on NodeMCU v1.0, and the Huzzah boards, and using a range of
sample code based on that provided in the examples directory, as well as the examples themselves.

To duplicate the issue, flash the Examples/ESP8266WebServer/HelloServer, with an appropriate ssid and password.
In my case the access point allocates 192.168.2.205. To demonstrate the reset:
Code: Select all   nmap 192.168.2.205

The ESP8266 will, after 4 seconds, respond with something like:
Code: Select all   ets Jan  8 2013,rst cause:4, boot mode:(3,7)
   wdt reset
   load 0x4010f000, len 1264, room 16
   tail 0
   chksum 0x42
   csum 0x42
   ~ld

Can others confirm this behaviour, and suggest what might be happening?
Cheers Hugh