How to set up NAT gateway for private Cloud Networks

[ravi-ojha]

Problem

The setup recommends DHCP approach however the private instance loses connection in less than 24 hours. You can reproduce the issue. I verified it happens with two private instances and continued to just restart for 3 days to get it back up.

Here's the log of the issue where it loses the connection

Mar 11 10:01:38 tping-api dhcpcd[737]: enp7s0: failed to renew DHCP, rebinding
Mar 11 10:01:38 tping-api dhcpcd[737]: enp7s0: leased 10.0.0.3 for 86400 seconds
Mar 11 10:01:38 tping-api dhcpcd[737]: enp7s0: pid 0 deleted host route to 169.254.169.254 via 10.0.0.1
Mar 11 10:01:38 tping-api dhcpcd[737]: enp7s0: pid 0 deleted host route to 10.0.0.1
Mar 11 10:01:38 tping-api dhcpcd[737]: enp7s0: pid 0 deleted route to 10.0.0.0/16 via 10.0.0.1
Mar 11 10:05:01 tping-api CRON[4398]: pam_unix(cron:session): session opened for user root(uid=0) by root(uid=0)
Mar 11 10:05:01 tping-api CRON[4399]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1)
Mar 11 10:05:01 tping-api CRON[4398]: pam_unix(cron:session): session closed for user root
Mar 11 10:10:01 tping-api systemd[1]: Starting sysstat-collect.service - system activity accounting tool...
Mar 11 10:10:01 tping-api systemd[1]: sysstat-collect.service: Deactivated successfully.

Suggested Fix

I haven't fixed it yet. Still looking for a resolution. AI and internet suggests that it should not use DHCP, instead it should be using static config.

[ravi-ojha]

I'm sorry I haven't suggested any fix. I'll report back in a couple of days.