UFB -> SPA2102 + ER-X

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breakaway

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#251259 15-Jun-2019 16:29

Hi,

I've never used this setup before. Basically, I have a device on-site that requires analog telephony service. I have a Linksys SPA2102 that I am trying to configure to make this work.

Can I put the SPA2102 in between my UFB ONT + my ER-X, enable "bridge" mode on the SPA2102, then set my Ubiquiti ER-X as "DHCP", and it will get handed a DHCP IP? And the phones will also work?

Or is it better to put the ER-X behind my ont and have the SPA2102 behind the ER-X? Seeking to minimise grief with Double NAT etc.

cyril7

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#2258785 15-Jun-2019 16:35

Hi who is the isp and what service is the ata connecting to.

The correct setup is the erx connected to the ont and the ata just as a lan device.

Cyril

RunningMan

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#2258789 15-Jun-2019 16:41

The only device doing NAT should be the ERX - SPA just sits as a device on that NAT'd network. SPA should cope with a single layer of NAT if correctly set up.

breakaway

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#2258791 15-Jun-2019 16:45

cyril7: The correct setup is the erx connected to the ont and the ata just as a lan device.

Thought so. The remote end is a Asterisk based FreePBX IP PBX.

cyril7

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#2258797 15-Jun-2019 17:22

Yep that should be fine with the ata behind the erx

Cyril

breakaway

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#2258799 15-Jun-2019 17:26

Ok, I've got it plugged in, set the "WAN" to "DHCP" but wouldn't pick up an IP from my ER-X. Setting it to "Static" and manually putting in IP/Subnet/Gatewy/DNS solved that. However now it says register fail.

Is there some way to access logs on this thing to see why register is failing?

Edit: I have a number of PBXes, including an ancient "PBX In a Flash" on CentOS as well. PBX in a flash works... but not my newer FreePBX. Any ideas on how I can figure out why registration fails (e.g. incorrect password etc) would be apprecaited.

RunningMan

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#2258825 15-Jun-2019 17:43

If it can't pick up an address via DHCP then you likely have to sort your router config before anything else.

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breakaway

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Master Geek
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#2258828 15-Jun-2019 17:46

As I mentioned, I don't believe this to be a connectivity issue since the SPA2102 can register against my ancient "PBX in A Flash" running Asterisk 1.8.28.0, but can't register against my newer FreePBX install which runs Asterisk 13.18.3. It just says "Failed", and asterisk -rvvvvvv on the box isn't showing anything useful.

breakaway

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Master Geek
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#2259079 16-Jun-2019 13:57

After using wireshark to read the syslog and getting nowhere (it turns out that even syslog provides virtually no info), I decided to re-check each setting one by one. The default SIP port was set to 5061, that's not right - It should be 5060 by default.

All working now. Thanks guys.