IPV4 versus IPV6

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tim777
Posts: 13
Joined: Wed Jul 22, 2020 1:20 pm

IPV4 versus IPV6

Post by tim777 »

Is there anyway to force mudlet 4.10.1 to use IPV4 as although my computer and the mud (Discworld) is IPV6 compatible it just hangs and never connects.
According to test-ipv6.com website i get a result of 9 out of 10. The failure is the DNS sever (BT i think) is either not able or not configured to use IPV6.
I am running Linux Mint 20.04 LTS and i can get round the problem by running the following commands in a terminal:-

sudo sysctl -w net.ipv6.conf.all.disable_ipv6=1
sudo sysctl -w net.ipv6.conf.default.disable_ipv6=1
sudo sysctl -w net.ipv6.conf.lo.disable_ipv6=1

But its a bit of a pain.

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Vadi
Posts: 4902
Joined: Sat Mar 14, 2009 3:13 pm

Re: IPV4 versus IPV6

Post by Vadi »

We don't have a setting to force that, sorry. There are proxy settings - maybe that'll be an easier workaround?

tim777
Posts: 13
Joined: Wed Jul 22, 2020 1:20 pm

Re: IPV4 versus IPV6

Post by tim777 »

Unfortunately my knowledge of proxy settings is nil so I will stick to disabling IPV6 at my end. Thanks for your help.

SynecticLabs
Posts: 4
Joined: Thu Jul 16, 2020 6:49 pm

Re: IPV4 versus IPV6

Post by SynecticLabs »

Sounds to me like this is an IPTables issue. I very much doubt your DNS provider will be blocking IPV6.

tim777
Posts: 13
Joined: Wed Jul 22, 2020 1:20 pm

Re: IPV4 versus IPV6

Post by tim777 »

My router is from BT same as my service provider so I think they are blocking it

tim777
Posts: 13
Joined: Wed Jul 22, 2020 1:20 pm

Re: IPV4 versus IPV6

Post by tim777 »

On checking my hub configuration again it confirms that IPV6 is enabled and also that DNS is NOT available

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SlySven
Posts: 987
Joined: Mon Mar 04, 2013 3:40 pm
Location: Deepest Wiltshire, UK
Discord: SlySven#2703

Re: IPV4 versus IPV6

Post by SlySven »

This is an issue that has been hanging around our necks for a while:
https://github.com/Mudlet/Mudlet/issues/3053
https://github.com/Mudlet/Mudlet/issues/3791

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