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Dual Nic Cards

R_Henry's picture
Posted May 12th, 2008 by R_Henry (tadpole)

I have read that many pre-configured machines for Asterisk or FreePBX come with dual nic cards. What is the benifit of dual nics, how would you set them up.

Thanks

Rob


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‹ Problem: Voicemail work only from internal extension ./start_asterisk: line 43: /usr/sbin/safe_asterisk: No such file or directory ›

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My company's PBX uses two

bobbyburgess's picture
On May 18th, 2008 bobbyburgess (Leap Frog) said:

My company's PBX uses two NICs. One is for connection to the office LAN (obviously). The other NIC gets a static, public IP address. Off-site phones (e.g. home users, retail stores) register to Asterisk via this public IP. Some people advise against putting a PBX on the internet, but if it has a static IP and your remote users do too, you can create rock solid firewall rules.

- Bobby


On a larger deployment,

cookdn's picture
On May 19th, 2008 cookdn (tadpole) said:

On a larger deployment, especially where you have multiple switches, you might want to look a bonding the NICs for redundancy.

Have a look at http://www.cyberciti.biz/tips/linux-bond-or-team-multiple-network-interf....

You will want the following in /etc/modprobe.conf:

alias bond0 bonding
options bond0 mode=active-backup miimon=100 primary=eth0