IPSC IP Addressing
The following are my notes on IP addressing for the IPSC system that's set up. If you look at the IPSC Known Ports list, you will see the destination as either SERVER or RM SERVER. Much of the difference is if you have installed the application on a different server than where your RM server is. In my case, I had all of my applications running on the same, so your mileage may vary. Obviously, with creating your own network, your IP addresses, subnets, etc. will be different as well.
My network was set up with a cellular modem, VPN router and laptop. There was an established VPN linking all the sites, which is why I chose to change the subnet to help me ID the site. I assigned all repeaters in the 200 range, and if there is more than one repeater at a site, it will follow the site master's IP (200) and move sequentially (201, 202, etc).
The computer stationed at each site was for backup programming, and all computers followed the REPEATER IP format, but was set at 192.168.xx.150.
In the table below, all sites were listed as DHCP = YES, however, in my router's programming I actually assigned static IPs by the repeater's MAC address.
Set the Site Master's UDP port to 50000, and each site will have the SELF UDP as listed.
SITE ID |
LINK EST AUTH KEY |
DHCP |
REPEATER IP |
MODEM IP |
ROUTER IP |
GATEWAY IP |
NETMASK |
SELF UDP |
0 |
ABC123 |
NONE |
192.168.0.200 |
VARIES |
192.168.0.1 |
192.168.1.1 |
255.255.255.0 |
50311 |
1 |
ABC123 |
YES |
192.168.11.200 |
VARIES | 192.168.11.1 |
192.168.1.1 | 255.255.255.0 | 58011 |
2 |
ABC123 |
YES |
192.168.12.200 |
VARIES |
192.168.12.1 |
192.168.1.1 | 255.255.255.0 | 58012 |
3 |
ABC123 |
YES |
192.168.13.200 |
VARIES |
192.168.13.1 |
192.168.1.1 | 255.255.255.0 | 58013 |
4 |
ABC123 |
YES |
192.168.14.200 |
VARIES |
192.168.14.1 |
192.168.1.1 | 255.255.255.0 | 58014 |
5 |
ABC123 |
YES |
192.168.15.200 |
VARIES |
192.168.15.1 |
192.168.1.1 | 255.255.255.0 | 58015 |
6 |
ABC123 |
YES |
192.168.16.200 |
VARIES |
192.168.16.1 |
192.168.1.1 | 255.255.255.0 | 58016 |
7 |
ABC123 |
YES |
192.168.17.200 |
VARIES |
192.168.17.1 |
192.168.1.1 | 255.255.255.0 | 58017 |
8 |
ABC123 |
YES |
192.168.18.200 |
VARIES | 192.168.18.1 |
192.168.1.1 | 255.255.255.0 | 58018 |
For the VPN, roll your own. I used TP-LINK VR605 routers that had VPN capabilities built in, obviously this was a bandaid and not a legit VPN server, though it worked well, and I didn't seem to have any issues - security related potential notwithstanding. The VPN was established as Site-To-Site, Manual IPSEC. I know, I know, but again, needed to get the system up ASAP - and readdress networking security at a later date.
Don't forget to change your Link Establishment Authorization Key - the table has some BS value.