ESP8266 Developer Zone

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-09-25T19:13:20+08:00

I have not tried.

Statistics: Posted by webself — Fri Sep 25, 2015 7:13 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-09-25T19:09:41+08:00

Did the feature work for you (in SDK 1.3.0)? Were your Windows machines able to resolve the host names?

Statistics: Posted by blubb — Fri Sep 25, 2015 7:09 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-09-25T14:50:36+08:00

Why SDK 1.4 still does not include this feature?
I check espconn.h for "espconn_nbns_init" and nothing was found...

Statistics: Posted by webself — Fri Sep 25, 2015 2:50 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-08-24T17:51:44+08:00

"esp8266" might be resolved by DNS, not NBNS on your system. Remove espconn_nbns_init() then try again. If pinging still works, your system uses DNS.
I found out that my Windows 7 machine does this, too. My Windows 10 machine tries NBNS only and cannot ping the module by host name (I have no idea why).

Try

nbtstat -a esp8266

It's a tool that comes with Windows: https://technet.microsoft.com/en-us/library/cc755486(v=ws.10).aspx

If NBNS works, there should be some output (compare it with, for example, a Linux system running Samba).

Statistics: Posted by blubb — Mon Aug 24, 2015 5:51 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-08-24T17:29:11+08:00

Hi,

With the code I provided above, it can ping "esp8266" successfully.

If your problem is still unsolved, please provide your test code and test steps, we will have a try.

Statistics: Posted by ESP_Faye — Mon Aug 24, 2015 5:29 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-08-18T19:19:20+08:00

No, does not work.

In the mean time I found a tool that can list NETBIOS nameservers on the local network:
http://www.unixwiz.net/tools/nbtscan.html

All my Windows machines and the Linux machines running Samba show up on the list. ESP8266 does not.

Statistics: Posted by blubb — Tue Aug 18, 2015 7:19 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-08-18T09:58:07+08:00

Hi,

Sorry that we can not duplicate your problem.

Here is our test code:

Code:

void ICACHE_FLASH_ATTR
user_esp_platform_check_ip(void)
{
    struct ip_info ipconfig;

   //disarm timer first
    os_timer_disarm(&test_timer);

   //get ip info of ESP8266 station
    wifi_get_ip_info(STATION_IF, &ipconfig);

    if (wifi_station_get_connect_status() == STATION_GOT_IP && ipconfig.ip.addr != 0) {

      os_printf("got ip !!! \r\n");

     wifi_station_set_hostname("esp8266");
     espconn_nbns_init();

    } else {
       
        if ((wifi_station_get_connect_status() == STATION_WRONG_PASSWORD ||
                wifi_station_get_connect_status() == STATION_NO_AP_FOUND ||
                wifi_station_get_connect_status() == STATION_CONNECT_FAIL)) {
                
         os_printf("connect fail !!! \r\n");
         
        } else {
        
           //re-arm timer to check ip
            os_timer_setfn(&test_timer, (os_timer_func_t *)user_esp_platform_check_ip, NULL);
            os_timer_arm(&test_timer, 100, 0);
        }
    }
}

void ICACHE_FLASH_ATTR
user_set_station_config(void)
{
   // Wifi configuration 
   char ssid[32] = SSID; 
   char password[64] = PASSWORD; 
   struct station_config stationConf; 

   //need not mac address
   stationConf.bssid_set = 0; 
   
   //Set ap settings 
   os_memcpy(&stationConf.ssid, ssid, 32); 
   os_memcpy(&stationConf.password, password, 64); 
   wifi_station_set_config(&stationConf); 

   //set a timer to check whether got ip from router succeed or not.
   os_timer_disarm(&test_timer);
   os_timer_setfn(&test_timer, (os_timer_func_t *)user_esp_platform_check_ip, NULL);
   os_timer_arm(&test_timer, 100, 0);

}

void user_init(void)
{
    os_printf("SDK version:%s\n", system_get_sdk_version());
   
   //Set  station mode 
   wifi_set_opmode(STATION_MODE); 

   // ESP8266 connect to router.
   user_set_station_config();

}

- Do I need to call espconn_nbns_init every time ESP8266 got an IP?
-> Yes.
- Do I need to call espconn_nbns_init every time I change the host name with wifi_station_set_hostname?
-> No. It is enough calling it only once after got an IP.

Statistics: Posted by ESP_Faye — Tue Aug 18, 2015 9:58 am

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-08-16T22:00:50+08:00

Could you also be a little more specific on when to call espconn_nbns_init() in our finished application?

- Do I need to call it every time ESP8266 got an IP?
- Do I need to call it every time I change the host name with wifi_station_set_hostname?
- Or is it enough calling it only once (in user_init() maybe)?

Statistics: Posted by blubb — Sun Aug 16, 2015 10:00 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-08-14T18:17:46+08:00

Hi Faye, thank you very much! I just tried it and, well, it *almost* works:

When I ping the ESP by host name, Windows tries to ping IP 168.0.135.0 which is not correct. The correct IP would be 192.168.0.135 in my case.
Looking at the IPs I think it was shifted by 1 byte accidentally! So this should be easy to fix if you look at your code.

Statistics: Posted by blubb — Fri Aug 14, 2015 6:17 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-08-14T16:18:46+08:00

Hi,

So sorry for the inconvenience. I checked it with our engineer again, esp_iot_sdk_v1.3.0 did not add this optimization.

Here is a patch based on esp_iot_sdk_v1.3.0 to support this new feature.

Please replace it in folder "lib" and add definition below in espconn.h

Code:

void espconn_nbns_init(void)

Call it after ESP8266 station connected to AP and got a IP address. For example,

Code:

wifi_station_set_hostname("esp8266");
espconn_nbns_init();

liblwip.a.zip

Statistics: Posted by ESP_Faye — Fri Aug 14, 2015 4:18 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-08-14T01:58:50+08:00

What command are you issuing at the windows side to try and reach the ESP device by hostname? What is the full hostname address you are trying?

Statistics: Posted by kolban — Fri Aug 14, 2015 1:58 am

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-08-13T23:32:27+08:00

Hmmm, no, the Windows 10 machine I'm currently sitting on cannot access the module by host name. Is there something I need to pay attention to? I'm setting the host name using wifi_station_set_hostname before wifi_station_dhcpc_start.

Statistics: Posted by blubb — Thu Aug 13, 2015 11:32 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-08-13T10:40:18+08:00

Hi,

Yes, have a try with the latest sdk_v1.3.0

If your problem is still unsolved, please feel free to let us know.

Statistics: Posted by ESP_Faye — Thu Aug 13, 2015 10:40 am

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-08-12T20:33:11+08:00

Hi, is the feature implemented in the new SDK 1.3.0? I could not find it in the change log.

Statistics: Posted by blubb — Wed Aug 12, 2015 8:33 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-07-19T22:58:51+08:00

Thanks. We're already looking forward to it!

Statistics: Posted by blubb — Sun Jul 19, 2015 10:58 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-07-08T11:20:02+08:00

Hi,

We attach great importance to your suggestion.

It will be supported in next SDK.

Thanks for your interest in Espressif Systems and ESP8266 !

Statistics: Posted by ESP_Faye — Wed Jul 08, 2015 11:20 am

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-07-01T17:51:19+08:00

This is what we were afraid of. So the next question would be: Considering the market share of Windows based operating systems, do you plan to implement the protocol so that Windows users can access devices based on your hardware in a customer-friendly way, too?

Statistics: Posted by blubb — Wed Jul 01, 2015 5:51 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-07-01T09:59:48+08:00

Hi，

Yes，windows client can not ping ESP8266 by hostname.

Because ESP8266 does not support protocol “NBNS” .

Please ping it through IP.

So sorry for the inconvenience.

Statistics: Posted by ESP_Faye — Wed Jul 01, 2015 9:59 am

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-06-30T17:17:15+08:00

Nope, I can ping my Ubuntu machine by its name without "local" or whatever. Just the hostname. There is definitely still something missing in the sdk.

Statistics: Posted by blubb — Tue Jun 30, 2015 5:17 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-06-30T10:49:47+08:00

This is a problem wit windows. I'm had some people report success by ensuring that their router has a local domain set to "local". Others had to make sure that the TCP properties on windows are set to add the .local suffix ...

Statistics: Posted by tve — Tue Jun 30, 2015 10:49 am

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-06-29T17:30:28+08:00

Hi, yes. It can ping my ubuntu machine. If I remember correctly I had to install Samba on the ubuntu machine to achieve this. But I do not know what Samba does to make this possible.

Statistics: Posted by blubb — Mon Jun 29, 2015 5:30 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-06-29T17:24:52+08:00

Hi,

Could your windows client ping other host ?

Statistics: Posted by ESP_Faye — Mon Jun 29, 2015 5:24 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-06-22T05:41:45+08:00

Hi, it seems that setting the hostname alone is not enough for Windows hosts.

I can see the hostname on my router's info page. I can ping the module from a linux client.

I cannot ping the module from a windows client!

However, Windows' nslookup command shows me the module's ip.

So something is still missing.

Statistics: Posted by blubb — Mon Jun 22, 2015 5:41 am

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-06-14T03:56:56+08:00

Hello espressif team,

you solved my request with SDK 1.1.2 (wifi_station_set_hostname(hostname)).

I'm impressed how fast you react to user requests! Great job - Thanks!

Best regards
Blackfarmer

Statistics: Posted by Blackfarmer — Sun Jun 14, 2015 3:56 am

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-06-09T18:54:46+08:00

Agreed, this would be my #1 request. An IOT device should be accessible via a configurable host name, so I can configure my connected refrigerator via http://fridge.local/

I'm currently solving this by using my own LWIP but this is a pain to maintain between SDK upgrades.

Statistics: Posted by joostn — Tue Jun 09, 2015 6:54 pm

Re: Hostname (standard PC-192-168-xxx-xxx)

2015-06-09T14:01:37+08:00

Hi，

Thanks for your interest in ESP8266 !

Sorry that we don‘t have the API to set hostname right now.

But this is a valuable advice，we will work on it !

Statistics: Posted by ESP_Faye — Tue Jun 09, 2015 2:01 pm

Hostname (standard PC-192-168-xxx-xxx)

2015-05-31T19:20:12+08:00

Hello,

I'm using the SDK of ESP822. Currently the device is registered in my network with the name 'PC-aaa-bbb-ccc-ddd', where aaa, bbb, ccc, ddd is the IP address. I would like to change this name into a myself generated name. How can I do this?

Thanks!
Blackfarmer

Statistics: Posted by Blackfarmer — Sun May 31, 2015 7:20 pm