Hello there, I just try to demonstrate TCP examples in NRF5 SDK 15 and 16.
I got two linux boards, one of them Allwinner V3S with Debian Bullseye and the other one is Raspberry Pi 3.
On both of them I set up everything, which is radvd with following radvd.conf file;
interface bt0
{
AdvSendAdvert on;
prefix 2001:db8::/64
{
AdvOnLink off;
AdvAutonomous on;
AdvRouterAddr on;
};
};
at /etc/sysctl.conf file ipv6 routing is enabled too. My bt0 interface shows up when I establish a connection, and I add 2001:db8::1/64 ipv6 address to it. At this stage, I can ping my nrf52 board via local and global ipv6 address. Than I add 2001:db9::1/64 address to my eth0 device and;
ip6tables -A FORWARD -i eth0 -o bt0 -j ACCEPT -d 2001:db8::/64 ip6tables -A FORWARD -i bt0 -o eth0 -j ACCEPT
make those settings for routing correctly.
From Windows side, which is my server, I set
netsh interface ipv6 add address Wi-Fi 2001:db9::2/64 netsh interface ipv6 add route 2001:db8::/64 Wi-Fi 2001:db9::1/64
those address and route commands. After all those, I can ping my nRF52 board from my windows.
PS C:\Windows\system32> ping -6 2001:db8::fa:edff:fe5c:bc04 -t Pinging 2001:db8::fa:edff:fe5c:bc04 with 32 bytes of data: Reply from 2001:db8::fa:edff:fe5c:bc04: time=237ms Reply from 2001:db8::fa:edff:fe5c:bc04: time=133ms Reply from 2001:db8::fa:edff:fe5c:bc04: time=127ms Reply from 2001:db8::fa:edff:fe5c:bc04: time=121ms Reply from 2001:db8::fa:edff:fe5c:bc04: time=216ms
After that, I just try to listen specified port in the nrf52 side. By the way, in sdk_config.h file, 6LOWPAN_LEGACY = 0 as it should be set 0. (Kernel > 5)
static const ip6_addr_t m_remote_addr =
{
.addr =
{HTONL(0x20010DB9),
0x00000000,
0x00000000,
HTONL(0x00000002)}
After that, on windows side, I just try to listen port 9000, which is correctly defined in nrf52 code via ncat, but nrf52 board cannot connect and send any data. LED2 is lit after successfull connection, but LED3 never lit. The surprising thing is, I just succeed connecting approximately 3 mounts ago. Is there any point that I am missing?
Sincelery.
