telecom HG630b with linksys router

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mrphil

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#142633 19-Mar-2014 08:52

Hi all

my belkin adsl modem died overnight which was connected to my linksys e4200 router

lucky i have a telecom home gateway HG630b modem spare, so i just unplugged the old belkin and plugged in the telecom unit but i cant seem to get internet with my linksys router

is there some type of setting i need to setup on the telecom unit for my linksys router to work?

thanks

sbiddle

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#1008705 19-Mar-2014 08:57

Presumably you had a double NAT situation before which is less than ideal.

If you want to run a router behind an ADSL connection you should be a running a basic modem in bridge mode and then relying on the router to do the authentication. My recommendation is a Draytek DV120.

Do you get internet if you plug directly into the HG630b?

mrphil

424 posts

Ultimate Geek

#1008709 19-Mar-2014 09:04

sbiddle: Presumably you had a double NAT situation before which is less than ideal.

If you want to run a router behind an ADSL connection you should be a running a basic modem in bridge mode and then relying on the router to do the authentication. My recommendation is a Draytek DV120.

Do you get internet if you plug directly into the HG630b?

does the Draytek do fibre? i got this modem cause fibre will be installed at the end of the month

yes internet works when i plug it straight into my laptop just doesnt work when plugged into my router

thanks

Spyware

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#1008771 19-Mar-2014 09:54

mrphil: Hi all

is there some type of setting i need to setup on the telecom unit for my linksys router to work?

thanks

Linksys router won't route if the same subnet is configured on both the WAN and LAN interfaces.

Spark Max Fibre using Mikrotik CCR1009-8G-1S-1S+, CRS125-24G-1S, Unifi UAP, U6-Pro, UAP-AC-M-Pro, Apple TV 4K (2022), Apple TV 4K (2017), iPad Air 1st gen, iPad Air 4th gen, iPhone 13, SkyNZ3151 (the white box). If it doesn't move then it's data cabled.

sbiddle

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#1008821 19-Mar-2014 11:02

Spyware:
mrphil: Hi all

is there some type of setting i need to setup on the telecom unit for my linksys router to work?

thanks

Linksys router won't route if the same subnet is configured on both the WAN and LAN interfaces.

I'd pick this as being the issue. I'm pretty sure both hand out 192.168.1.0/24 IP ranges by default, so you've got double NAT occurring with the HG630b handing out 192.168.1.0/24 to the Linksys, and the Linksys then handing out 192.168.1.0/24 to devices which causes a clash.

I'm also not aware of the E4200 supporting VLAN tagging on the WAN, so unless you've gone with a UFB ISP that supports untagged UNI, and requested this, it's not going to work with UFB.

mrphil

424 posts

Ultimate Geek

#1008920 19-Mar-2014 12:34

sbiddle:
Spyware:
mrphil: Hi all

is there some type of setting i need to setup on the telecom unit for my linksys router to work?

thanks

Linksys router won't route if the same subnet is configured on both the WAN and LAN interfaces.

I'd pick this as being the issue. I'm pretty sure both hand out 192.168.1.0/24 IP ranges by default, so you've got double NAT occurring with the HG630b handing out 192.168.1.0/24 to the Linksys, and the Linksys then handing out 192.168.1.0/24 to devices which causes a clash.

I'm also not aware of the E4200 supporting VLAN tagging on the WAN, so unless you've gone with a UFB ISP that supports untagged UNI, and requested this, it's not going to work with UFB.

bingo! i changed the ip range on the linksys and its all working for now....

looks like you are might be right about VLAN tagging on the e4200, sounds like a network overhaul when fibre gets installed....oh joy

sbiddle

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#1008977 19-Mar-2014 13:58

Double NAT (like you have) is a horrible broken setup to have. If you weren't moving to UFB it would be worth getting a decent DSL modem such as a DV120 to configure in bridge mode.