I received my RPI HAT + Quectel EG25 setup today. I used the set up scripts provide by Sixfab and have a usb0 network device up and running. I can ping, do DNS queries, and fetch web pages over http and https via the cell network, but I can’t ssh out to remote servers. I’m stumped!
I have no firewalls or other port blocks on the Raspberry PI. Here’s some outputs to illustrate (I’ve obfuscated the server IP address):
I can fetch a web page from my server via USB0:
$ curl --interface usb0 http://xx.xx.xx.xx <!DOCTYPE html> <html> <head> <title>Welcome to nginx!</title> </head> <body> <h1>Welcome to nginx!</h1> </body> </html>
I can ssh to my server over the WLAN adapter:
$ ssh -B wlan0 xx.xx.xx.xx Welcome to Ubuntu 22.04.1 LTS (GNU/Linux 5.15.0-1026-aws aarch64) $
But I can’t ssh to the same server over USB0/Cell:
$ ssh -vvv -B usb0 xx.xx.xx.xx OpenSSH_8.4p1 Debian-5+deb11u1, OpenSSL 1.1.1n 15 Mar 2022 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: include /etc/ssh/ssh_config.d/*.conf matched no files debug1: /etc/ssh/ssh_config line 21: Applying options for * debug2: resolve_canonicalize: hostname 220.127.116.11 is address debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/home/user/.ssh/known_hosts' debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/home/user/.ssh/known_hosts2' debug2: ssh_connect_direct debug1: Connecting to xx.xx.xx.xx [xx.xx.xx.xx] port 22. debug1: ssh_create_socket: bound to 192.168.225.55 debug1: connect to address xx.xx.xx.xx port 22: Connection timed out ssh: connect to host xx.xx.xx.xx port 22: Connection timed out $
What am I missing?