Two network cards on Debian installation.

[Kane Wong]

Hi;
I have debian installation with one network card but I want to add one more network card, do I need reinstall 3CX? The existing network card will be used to support LAN subnet for the desktop SIP phone in office, and the 2nd network card will be used to face to the internet behind the firewall with NAT.

The 2nd network card is used to support all the phone call coming from the internet because I have a guest wifi in office and the staff is connecting to this guest wifi. This guest wifi is on a isolated subnet which cannot access to the LAN resources. I want the staff who use the 3CX mobile app to talk to each other through internet facing NIC.

So, my 3CX server (debian version) will equip two legs, one for internal LAN, one for Public Internet.

Please let me know if it is feasible.

 

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https://www.3cx.com/community/threads/debian-how-do-you-use-2-nic-cards.53434/

 

[Kane Wong]

https://www.3cx.com/community/threads/debian-how-do-you-use-2-nic-cards.53434/

Thanks!

The example shows the 2nd NIC is for SIP provider on internet facing network, there is no gateway assigned to the 2nd NIC, instead; it is using a static route,

the ip address 213.226.61.0/24 is used because it is the SIP provider server, I believed; if for internet, I should write like this.... replace 213.226.61.0/24 with 0.0.0.0

up route add -net 0.0.0.0 gw 10.251.222.113 dev ens224

With one leg to internal LAN, and the other leg to public internet, can the 3CX mobile app user can talk to desktop phone user on LAN?

Also, do I need reinstall my 3CX, or just shutdown the server and add the 2nd nic?