Release and renew DHCP IP address via Shell
How I could completely release and renew IP from my interface via shell, ultimately emulating web UI manual release/new functionality?
I am running pfSense behind a 4G/5G connection. After my WANs DHCP lease expiration (somewhere under 24h) the internet stops working and pfSense is unable to get a new IP. I can see the queries it tries to make but my ISP is using some weird NAT system; I got my current WAN IP from 100.96.6.136/30 network but my external IP seems to be in whole different level (85.76...). I get my internet connection back online after manually releasing and renewing IP via web UI and I would like to automate this via script & cron.
I already wrote a script to check for internet connection and issuing a command if it is offline, but I am unable to correctly renew the IP. I'm currently issuing dhclient command, but this does not seem to work. I suspect it asks new IP lease from current 100.96.6.136/30 network. However, if I manually release and renew IP from web UI, I get new lease from totally different network, no where near the same IP pool.