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Dynamic IP vs PPPoE

Dynamic IP vs PPPoE

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Sunahh
Posting Freak
863
04-29-2025, 08:03 PM
#1
Hey there, I got a TP-Link router to swap in for the ISP one. The ISP router is only for VoIP, so when I first set it up I picked Dynamic IP. It’s working fine, but my ISP gives me a PPPoE username and password. Should I use that instead? The main difference is how the connection is established. Using a LAN-to-LAN option between the two routers didn’t help with VoIP, only the WAN side on the ISP router worked. That’s probably related.
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Sunahh
04-29-2025, 08:03 PM #1

Hey there, I got a TP-Link router to swap in for the ISP one. The ISP router is only for VoIP, so when I first set it up I picked Dynamic IP. It’s working fine, but my ISP gives me a PPPoE username and password. Should I use that instead? The main difference is how the connection is established. Using a LAN-to-LAN option between the two routers didn’t help with VoIP, only the WAN side on the ISP router worked. That’s probably related.

H
162
05-15-2025, 01:59 AM
#2
VoIP involves multiple delivery methods, and your main router might not support passing the PPPoE connection to another router while keeping VoIP active. Using Dynamic IP simplifies things by letting the primary router handle everything, with a secondary router only serving as an Access Point. This setup is usually not recommended. The role of the second router should be limited—typically just providing connectivity without performing routing tasks. What is its intended function?
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Hightops123432
05-15-2025, 01:59 AM #2

VoIP involves multiple delivery methods, and your main router might not support passing the PPPoE connection to another router while keeping VoIP active. Using Dynamic IP simplifies things by letting the primary router handle everything, with a secondary router only serving as an Access Point. This setup is usually not recommended. The role of the second router should be limited—typically just providing connectivity without performing routing tasks. What is its intended function?

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Azeeus
Junior Member
17
06-03-2025, 09:12 PM
#3
You can also choose PPPoE and let the main router act as the router. What will shift is the setup—just ensure the settings match your current configuration. The username and password you used before were for the ADSL connection, not for VoIP. Right now you're using ONT with a TP Link connection (WAN) and a bridge port, which is how VoIP works. I also tried LAN-to-LAN for a single network but it didn’t work for VoIP.
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Azeeus
06-03-2025, 09:12 PM #3

You can also choose PPPoE and let the main router act as the router. What will shift is the setup—just ensure the settings match your current configuration. The username and password you used before were for the ADSL connection, not for VoIP. Right now you're using ONT with a TP Link connection (WAN) and a bridge port, which is how VoIP works. I also tried LAN-to-LAN for a single network but it didn’t work for VoIP.