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Syntax for prevent routing to be set by dhcp?
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pgu
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Joined: 30 Jul 2009
Posts: 721
Location: Oslo, Norway

PostPosted: Tue Mar 05, 2024 8:53 am    Post subject: Syntax for prevent routing to be set by dhcp? Reply with quote

Quote:

# grep wlp2s0 /etc/conf.d/net
config_wlp2s0="dhcp"
dhcp_wlp2s0="release nodns nontp nonis nogateway nosendhost"


Is the above the correct syntax? I seem to get gateways from dhcp still? I would like to get the IP (or possibly hostname) only.
I also tried to disable the following options from the dhcp client as well:

Code:

 # grep option /etc/dhcpcd.conf
# A list of options to request from the DHCP server.
#option domain_name_servers, domain_name, domain_search
#option classless_static_routes
option interface_mtu
option host_name
#option ntp_servers
# Safe to enable by default because it requires the equivalent option set
option rapid_commit


But still I get routing table entries after some time for this interface. What is the correct syntax/method to disable this?
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pgu
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Joined: 30 Jul 2009
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Location: Oslo, Norway

PostPosted: Thu Mar 07, 2024 7:35 am    Post subject: Reply with quote

What seem to work is to set the nogateway option in the dhcpcd.conf file, even though it will then be global for all interfaces on the host.
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flexibeast
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Joined: 04 Apr 2022
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Location: Naarm/Melbourne, Australia

PostPosted: Thu Mar 07, 2024 8:04 am    Post subject: Reply with quote

You could try putting an "interface" line before the "nogateway" line, as described in the dhcpcd.conf man page:

Quote:
interface interface
    Subsequent options are only parsed for this interface.
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pgu
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Joined: 30 Jul 2009
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Location: Oslo, Norway

PostPosted: Fri Mar 08, 2024 6:28 am    Post subject: Reply with quote

flexibeast wrote:

You could try putting an "interface" line before the "nogateway" line.


Thank you. I was not aware of this type of context mode change option in the file. I will try to re-organize the contents of the file as I have multiple interfaces which should have different options.
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devanichol87
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Joined: 08 Mar 2024
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PostPosted: Fri Mar 08, 2024 1:04 pm    Post subject: Reply with quote

Edit /etc/network/interfaces with static IP details.
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grknight
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Joined: 20 Feb 2015
Posts: 1896

PostPosted: Fri Mar 08, 2024 1:20 pm    Post subject: Reply with quote

devanichol87 wrote:
Edit /etc/network/interfaces with static IP details.

Nothing uses this file on Gentoo so this is bad advice.
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