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Re: How do I connect my new wifi router (Mi Router 4C)?

From Max Nikulin <manikulin@gmail.com>
Newsgroups linux.debian.user
Subject Re: How do I connect my new wifi router (Mi Router 4C)?
Date 2023-10-25 14:40 +0200
Message-ID <HsLkZ-KRP-1@gated-at.bofh.it> (permalink)
References <HsDx7-Fzy-3@gated-at.bofh.it> <HsH7H-IcH-3@gated-at.bofh.it> <HsHhn-Igc-7@gated-at.bofh.it> <HsKff-K4Q-5@gated-at.bofh.it>
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On 25/10/2023 18:24, Martin wrote:
> On Wed, Oct 25, 2023 at 03:17:09PM +0700, Max Nikulin wrote:
>>
>> So packet forwarding should be enabled on the computer.

sysctl net.ipv4.ip_forward

almost certainly enabled since you have the docker0 network interface

>> However I suspect an issue with IP addresses.
I was wrong.

> 2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
>      link/ether e0:d5:5e:73:c9:d3 brd ff:ff:ff:ff:ff:ff
>      inet 192.168.231.3/24 brd 192.168.231.255 scope global enp3s0
[...]
> 3: wlxe8de27a5ab1c: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
>      link/ether e8:de:27:a5:ab:1c brd ff:ff:ff:ff:ff:ff
>      inet 192.168.0.16/24 brd 192.168.0.255 scope global dynamic wlxe8de27a5ab1c

looks consistent from router settings you posted earlier

>      IP address: 192.168.231.5
>     Subnet mask: 255.255.255.0
> Default gateway: 192.168.231.3
>             DNS: 192.168.231.3

I hope, you have a DNS server running on this machine

     dig debian.org @192.168.231.3

or

     host debian.org 192.168.231.3

Check that you do not have blocking rules in firewall and that 
masquerading is enabled for your downstream link enp3s0

     nft list ruleset

should have something like

table ip sharedconnection {
   chain postrouting {
     type nat hook postrouting priority srcnat; policy accept;
     ip saddr 192.168.231.3/24 ip daddr != 192.168.231.3/24 masquerade
   }
}

A tool for further debugging is tcpdump or wireshark.

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Thread

How do I connect my new wifi router (Mi Router 4C)? Martin <martin94@cryptolab.net> - 2023-10-25 06:20 +0200
  Re: How do I connect my new wifi router (Mi Router 4C)? Geert Stappers <stappers@stappers.nl> - 2023-10-25 07:00 +0200
    Re: How do I connect my new wifi router (Mi Router 4C)? Martin <martin94@cryptolab.net> - 2023-10-25 07:50 +0200
  Re: How do I connect my new wifi router (Mi Router 4C)? "Marco M." <mm@dorfdsl.de> - 2023-10-25 07:30 +0200
    Re: How do I connect my new wifi router (Mi Router 4C)? Martin <martin94@cryptolab.net> - 2023-10-25 08:50 +0200
      Re: How do I connect my new wifi router (Mi Router 4C)? "Marco M." <mm@dorfdsl.de> - 2023-10-25 08:50 +0200
        Re: How do I connect my new wifi router (Mi Router 4C)? Martin <martin94@cryptolab.net> - 2023-10-25 13:40 +0200
          Re: How do I connect my new wifi router (Mi Router 4C)? "Marco M." <mm@dorfdsl.de> - 2023-10-25 14:20 +0200
            Re: How do I connect my new wifi router (Mi Router 4C)? Martin <martin94@cryptolab.net> - 2023-10-25 22:20 +0200
  Re: How do I connect my new wifi router (Mi Router 4C)? Anssi Saari <anssi.saari@debian-user.mail.kapsi.fi> - 2023-10-25 10:10 +0200
    Re: How do I connect my new wifi router (Mi Router 4C)? Max Nikulin <manikulin@gmail.com> - 2023-10-25 10:20 +0200
      Re: How do I connect my new wifi router (Mi Router 4C)? Martin <martin94@cryptolab.net> - 2023-10-25 13:30 +0200
        Re: How do I connect my new wifi router (Mi Router 4C)? Max Nikulin <manikulin@gmail.com> - 2023-10-25 14:40 +0200
          Re: How do I connect my new wifi router (Mi Router 4C)? Martin <martin94@cryptolab.net> - 2023-10-25 21:30 +0200
            Re: How do I connect my new wifi router (Mi Router 4C)? Max Nikulin <manikulin@gmail.com> - 2023-10-26 05:00 +0200
              Re: How do I connect my new wifi router (Mi Router 4C)? Martin <martin94@cryptolab.net> - 2023-10-26 12:10 +0200
                Re: How do I connect my new wifi router (Mi Router 4C)? Max Nikulin <manikulin@gmail.com> - 2023-10-26 17:10 +0200
                Re: How do I connect my new wifi router (Mi Router 4C)? Martin <martin94@cryptolab.net> - 2023-11-04 20:10 +0100
                Re: How do I connect my new wifi router (Mi Router 4C)? Tixy <tixy@yxit.co.uk> - 2023-11-05 07:50 +0100
                Re: How do I connect my new wifi router (Mi Router 4C)? Max Nikulin <manikulin@gmail.com> - 2023-11-05 17:00 +0100
                Re: How do I connect my new wifi router (Mi Router 4C)? Martin <martin94@cryptolab.net> - 2023-11-08 14:50 +0100
                Re: How do I connect my new wifi router (Mi Router 4C)? Anssi Saari <anssi.saari@debian-user.mail.kapsi.fi> - 2023-11-09 11:30 +0100
                Re: How do I connect my new wifi router (Mi Router 4C)? Max Nikulin <manikulin@gmail.com> - 2023-11-09 15:50 +0100
                Re: How do I connect my new wifi router (Mi Router 4C)? Martin <martin94@cryptolab.net> - 2023-11-05 22:50 +0100
                Re: How do I connect my new wifi router (Mi Router 4C)? Anssi Saari <anssi.saari@debian-user.mail.kapsi.fi> - 2023-11-05 09:30 +0100
                Re: How do I connect my new wifi router (Mi Router 4C)? Martin <martin94@cryptolab.net> - 2023-11-05 22:50 +0100
    Re: How do I connect my new wifi router (Mi Router 4C)? David Wright <deblis@lionunicorn.co.uk> - 2023-10-26 01:30 +0200

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