No WAN IP from Arris TG2492LG in Bridged Mode
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Re: pfSense stopped recognising cable modem in bridged mode
I'm having the same problem here with pfsense 2.4.4-p3. I have done a factory reset but the WAN interface is still not getting the public IP from the Arris TG2492LG cable modem.
When the Arris modem is in Router mode, DNS is intermittent.
This was a clean install.
Hardware is the Protectli FW108120.
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PfSense should never recognize the modem in bridge mode. It's supposed to be transparent. It sounds like the problem is upstream. Put a computer directly on the modem, in bridge mode, and see what happens. If you're worried about attacks, etc., you can use a live Linux USB stick or disc.
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The computer gets the public IP from the modem when in bridged mode.
I have the same modem but with a different software at other locations. Those modems are in modem mode so the pfSense behind each gets the public IP from the modem.
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Run a packet capture on the WAN, see what's actually coming back, if anything.
Try assigning a different interface as WAN.
Try spoofing the MAC address of the client that get the IP correctly.
Steve
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@stephenw10 I will do as you suggested. Will provide a feedback shortly.
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Apologies for the delay, the quarantine is real.
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I think I might be having a similar problem to you using an arris TM1602.
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I no longer experience this issue after a clean install of version 2.4.5.
Finally have a working connection as at today.
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@marpfsense said in No WAN IP from Arris TG2492LG in Bridged Mode:
The computer gets the public IP from the modem when in bridged mode.
Do it does not. The modem only provides local LAN IP's when NOT in bridge mode.
In bridge mode, the cable modem simply forwards the DHCP discover, etc to the cable operator. Typically the service provider DHCP detects the differences between the cable-modem E-router and a bridged client device, and then responds accordingly.
Pete