Description
I currently face the issue where the TFTP server seems to answer with the wrong IP address (from Docker). I am using the default docker-compose.yml file.
10.10.0.103 is my client, 10.10.3.6 is the next-server and 192.168.192.2 is the IP address of the Docker container running netboot.xyz.
The following is the tcpdump output on the host machine (where Docker is **running).
11:53:56.340862 IP 10.10.0.103.1024 > 10.10.3.6.69: 46 RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
11:53:56.340922 IP 10.10.0.103.1024 > 192.168.192.2.69: 46 RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
11:53:56.340926 IP 10.10.0.103.1024 > 192.168.192.2.69: 46 RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
11:53:56.723268 IP 10.10.0.103.1024 > 10.10.3.6.69: 46 RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
11:53:56.723308 IP 10.10.0.103.1024 > 192.168.192.2.69: 46 RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
11:53:56.723315 IP 10.10.0.103.1024 > 192.168.192.2.69: 46 RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
11:53:57.492147 IP 10.10.0.103.1024 > 10.10.3.6.69: 46 RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
11:53:57.492206 IP 10.10.0.103.1024 > 192.168.192.2.69: 46 RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
11:53:57.492214 IP 10.10.0.103.1024 > 192.168.192.2.69: 46 RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
11:53:59.029670 IP 10.10.0.103.1024 > 10.10.3.6.69: 46 RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
11:53:59.029734 IP 10.10.0.103.1024 > 192.168.192.2.69: 46 RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
11:53:59.029743 IP 10.10.0.103.1024 > 192.168.192.2.69: 46 RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
11:54:02.106092 IP 10.10.0.103.1024 > 10.10.3.6.69: 46 RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
11:54:02.106157 IP 10.10.0.103.1024 > 192.168.192.2.69: 46 RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
11:54:02.106164 IP 10.10.0.103.1024 > 192.168.192.2.69: 46 RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
The following is the tcpdump output on docker container itself (please don't mind the time offset).
10:53:56.340927 eth0 In IP 10.10.0.103.1024 > 192.168.192.2.69: TFTP, length 46, RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
10:53:56.723316 eth0 In IP 10.10.0.103.1024 > 192.168.192.2.69: TFTP, length 46, RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
10:53:57.492217 eth0 In IP 10.10.0.103.1024 > 192.168.192.2.69: TFTP, length 46, RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
10:53:59.029745 eth0 In IP 10.10.0.103.1024 > 192.168.192.2.69: TFTP, length 46, RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
10:54:02.106165 eth0 In IP 10.10.0.103.1024 > 192.168.192.2.69: TFTP, length 46, RRQ "netboot.xyz.kpxe" octet blksize 1432 tsize 0
I tried running the Docker container with network_mode: host which leads to the fact that no Docker internal IP address is shown in the TCPdump output but it fails to start fully because of nginx (I have somehting running on port 80 on the hardware server so nginx cannot bind on it).
What do I need to configure in order to get this up and running?