Installing Hamachi kills other network connectivity
by Geoff_L from LinuxQuestions.org on (#4S0K0)
Hopefully, this belongs in network connectivity as I suspect the resolution might lie somewhere other than just with Hamachi.
The Raspberry Pi 1B I was using as a Logmein Hamachi gateway died the other day and I'm trying to replace it a Raspberry Pi 3B+ that I built with full version of Rasbian (based on Debian Buster).
I manually configured ethernet and switched of WiFi. Ethernet is configured with a static IP address 192.168.x.x/24 with my router set as the default gateway and with my network DNS server set as the default with Google's 8.8.8.8 as a secondary. IPV6 is disabled. Everything worked. I enabled SSH on the Pi and checked I could remotely log in.
I installed Hamachi thus:Code:$ wget https://www.vpn.net/installers/logmein-hamachi_2.1.0.203-1_armhf.deb
$ sudo dpkg -i logmein-hamachi_2.1.0.203-1_armhf.debThen configured it with:Code:$ sudo hamachi login
$ sudo hamachi attach logmein-account
# on another machine, approve the Pi
$ sudo hamachi do-join network-id password
# on another machine, approve the join request and then configure the network to set the Pi as gatewayI did the above on the 'other machine' via SSH. However, a few minutes after the above, I lost SSH connectivity to the Pi. Returning to the local console on the Pi, I note that all the expected interfaces are up (eth0 and the three associated with hamachi). Pi config shows SSH is still enabled. However, I can't ping or traceroute to external resources (like bbc.co.uk). Doing $ sudo service ssh status shows that ssh is running.
Doing $ sudo dpkg -r logmein-hamachi restores SSH and other networking connectivity. FWIW, this is the second attempt at building this Pi and I had a similar issue with XRDP at the first attempt.
Help! All assistance to sort out this conflict will be gratefully received.


The Raspberry Pi 1B I was using as a Logmein Hamachi gateway died the other day and I'm trying to replace it a Raspberry Pi 3B+ that I built with full version of Rasbian (based on Debian Buster).
I manually configured ethernet and switched of WiFi. Ethernet is configured with a static IP address 192.168.x.x/24 with my router set as the default gateway and with my network DNS server set as the default with Google's 8.8.8.8 as a secondary. IPV6 is disabled. Everything worked. I enabled SSH on the Pi and checked I could remotely log in.
I installed Hamachi thus:Code:$ wget https://www.vpn.net/installers/logmein-hamachi_2.1.0.203-1_armhf.deb
$ sudo dpkg -i logmein-hamachi_2.1.0.203-1_armhf.debThen configured it with:Code:$ sudo hamachi login
$ sudo hamachi attach logmein-account
# on another machine, approve the Pi
$ sudo hamachi do-join network-id password
# on another machine, approve the join request and then configure the network to set the Pi as gatewayI did the above on the 'other machine' via SSH. However, a few minutes after the above, I lost SSH connectivity to the Pi. Returning to the local console on the Pi, I note that all the expected interfaces are up (eth0 and the three associated with hamachi). Pi config shows SSH is still enabled. However, I can't ping or traceroute to external resources (like bbc.co.uk). Doing $ sudo service ssh status shows that ssh is running.
Doing $ sudo dpkg -r logmein-hamachi restores SSH and other networking connectivity. FWIW, this is the second attempt at building this Pi and I had a similar issue with XRDP at the first attempt.
Help! All assistance to sort out this conflict will be gratefully received.