Unity3D ad Lidgren IPV6

[Gabriele Barlocci]

Hello,
I use Lidgren network on my game and I changed the library for support ipv6.
My change is based on this implementation (but without the dualmode)
https://github.com/lidgren/lidgren-network-gen3/pull/33/commits/1d99bb8e41b82e8d7d43b6e94fe97924aa5c...
All works fine on Mono in ipv4 and ipv6 but on L2Cpp the app is locked into the "connecting" stage without giving errors.
The server (ipv4 only) address is successfully converted in ipv6 in both L2cpp and Mono modes.
Maybe is this a problem of the L2CPP implementation?
The problem is the same on Unity 4.7.2 and Unity 5.3.5p7.
Thank you
Gabriel

This is the IOS plugin I use for convert an ip4 IP to ipv6
//FILE H
@interface ipv6 : NSObject
+(NSString *)getIPv6 : (const char *)mHost Smiley Sadconst char *)mPort Smiley Sadbool*) isIpv6;
@End
// FILE .M
#include <sys/socket.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <err.h>
#define MakeStringCopy( _x_ ) ( _x_ != NULL && [_x_ isKindOfClass:[NSString class]] ) ? strdup( [_x_ UTF8String] ) : NULL
const char* getIPv6(const char *mHost,const char *mPort,bool* isIpv6)
{
if( nil == mHost )
return NULL;
const char *newChar = "No";
const char *cause = NULL;
struct addrinfo* res0;
struct addrinfo hints;
struct addrinfo* res;
int n, s;
*isIpv6 = false;

memset(&hints, 0, sizeof(hints));
hints.ai_flags = AI_DEFAULT;
hints.ai_family = PF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
if((n=getaddrinfo(mHost, "http", &hints, &res0))!=0)
{
printf("getaddrinfo error: %s\n",gai_strerror(n));
return NULL;
}
struct sockaddr_in6* addr6;
struct sockaddr_in* addr;
NSString * NewStr = NULL;
char ipbuf[32];
s = -1;
for(res = res0; res; res = res->ai_next)
{
if (res->ai_family == AF_INET6)
{
addr6 =( struct sockaddr_in6*)res->ai_addr;
newChar = inet_ntop(AF_INET6, &addr6->sin6_addr, ipbuf, sizeof(ipbuf));
NewStr = [[NSString alloc] initWithCStringSmiley Sadconst char*)newChar
encoding:NSASCIIStringEncoding];
*isIpv6 = true;
printf("%s\n", newChar);
}
else
{
addr =( struct sockaddr_in*)res->ai_addr;
newChar = inet_ntop(AF_INET, &addr->sin_addr, ipbuf, sizeof(ipbuf));
NewStr = [[NSString alloc] initWithCStringSmiley Sadconst char*)newChar
encoding:NSASCIIStringEncoding];
printf("%s\n", newChar);
}
break;
}

freeaddrinfo(res0);
printf("getaddrinfo OK");
NSString * mIPaddr = NewStr;
return MakeStringCopy(mIPaddr);
}

------------

[Gabriele Barlocci]

The problem look like this :

On connect i receive this 

Connect remoteEndPoint :64:ff9b::25bb:880d:14240

START HANDSHAKE WITH 64:ff9b::25bb:880d:14240

When i received the first packet...from

m_socket.ReceiveFrom(m_receiveBuffer, 0,m_receiveBuffer.Length, SocketFlags.None, ref m_senderRemote); 

the  m_senderRemote report this : 

IP : 2b16:64:ff9b::25bb%3464

ENDPOINT : 2b16:64:ff9b::25bb%3464:30630

Look like a broken IPV6...right ?

Note : This only on Il2CPP on .Net work