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[solved] Network Manager && WiFi Hotspot / Not getting ip
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heikkikk
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PostPosted: Mon Dec 02, 2019 11:11 pm    Post subject: Network Manager && WiFi Hotspot / Getting ip address Reply with quote

Hello.

I managed to set up hotspot mode in network manager in Gentoo / Gnome

But it does not give the wifi connected device (mobile phone in this case) an ip address.

Do i need to install some dhcp server on my laptop or how is it supposed to work?

So i see the wifi network and i can kind of connect to it but it does not get an ip address and thus disconnects from it.

Also i can't change the network name. It stays as "localhost.localdomain" even if i change it using nm-connection-editor.

Thanks.


Last edited by heikkikk on Fri Dec 06, 2019 9:26 pm; edited 2 times in total
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e3k
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PostPosted: Tue Dec 03, 2019 7:52 am    Post subject: Reply with quote

yes you need a dhcp server that distributes IPs. typically it is dnsmasq.
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heikkikk
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PostPosted: Tue Dec 03, 2019 6:20 pm    Post subject: Reply with quote

e3k wrote:
yes you need a dhcp server that distributes IPs. typically it is dnsmasq.


Works, Thanks

I just installed it and restarted network manager.

Code:

emerge --ask --verbose net-dns/dnsmasq && systemctl restart NetworkManager
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heikkikk
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PostPosted: Tue Dec 03, 2019 6:21 pm    Post subject: Reply with quote

But the other problem stays: The network name (hotspot name) is changing. If i change it with nm-connection-manager, it will not stay as i wanted.
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e3k
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PostPosted: Tue Dec 03, 2019 6:44 pm    Post subject: Reply with quote

heikkikk wrote:
But the other problem stays: The network name (hotspot name) is changing. If i change it with nm-connection-manager, it will not stay as i wanted.
apparently the NetworkManager is working like this:
Code:

rtfm:$ man NetworkManager.conf
...
 hostname-mode
           Set the management mode of the hostname. This parameter will affect
           only the transient hostname. If a valid static hostname is set,
           NetworkManager will skip the update of the hostname despite the
           value of this option. An hostname empty or equal to 'localhost',
           'localhost6', 'localhost.localdomain' or 'localhost6.localdomain'
           is considered invalid.

           default: NetworkManager will update the hostname with the one
           provided via DHCP on the main connection (the one with a default
           route). If not present, the hostname will be updated to the last
           one set outside NetworkManager. If it is not valid, NetworkManager
           will try to recover the hostname from the reverse lookup of the IP
           address of the main connection. If this fails too, the hostname
           will be set to 'localhost.localdomain'.
...


so i guess it would be enough to follow the gentoo config steps: https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/System
and set the hostname as it is used as the SSID by NM.

i am also happy that your dnsmasq is working now ;)
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heikkikk
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PostPosted: Tue Dec 03, 2019 8:06 pm    Post subject: Reply with quote

the command
Code:
hostnamectl --static set-hostname gentoomachine

worked for me :)
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e3k
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PostPosted: Wed Dec 04, 2019 6:59 am    Post subject: Reply with quote

great. if it is all fixed now please set the title of this thread to [solved] ...
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heikkikk
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PostPosted: Fri Dec 06, 2019 9:27 pm    Post subject: Reply with quote

e3k wrote:
great. if it is all fixed now please set the title of this thread to [solved] ...


"Error in posting"
can't do that.

edit: Oh, it changed anyhow :)
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