Re: [lwip-users] enable socket in lwip

[Gisle Vanem]

"Carol Lai" <address@hidden> wrote:

> I ran the windows example and it also stops at "Attempting to open interface 
> number ##" where ## is configNETWORK_INTERFACE_TO_USE value.
>
> My dos window shows 7 adapters and I tried all numbers but none of them 
> pass that "attempting" state.  Below is the print out.
>
> ------------------
> Starting lwIP, local interface IP is 172.25.218.200
> 1. rpcap://\Device\NPF_{2FFF9284-43BC-43DD-BDF1-28185738EFF8} (Network adapter '
> Microsoft' on local host)

I doubt that your Winpcap supports remote capture; that's what the "rpcap://" 
scheme
means. In any case that device isn't writable, so you get no luck with that. 
You need
to define 'NETWORK_INTERFACE_TO_USE' to a device (GUID) you actually have 
installed.

Btw, I cannot find  'NETWORK_INTERFACE_TO_USE' in any lwIP file. Do you mean:
 #define PACKET_LIB_ADAPTER_GUID   "8D3A23A7-9C6C-408B-A23B-6736F9E56510"

One hint for this GUID is from the command 
 "netsh winsock show catalog | grep _tcpip_"

(this show the Winsock low-level LSP providers).

or Wireshark, or "windump -D". Good luck.

--gv