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Groups > linux.debian.user > #207618

Re: Accessing a host with variable IP addresses / connection types

From Kevin DAGNEAUX <kevin.dagneaux@fiitelcom.fr>
Newsgroups linux.debian.user
Subject Re: Accessing a host with variable IP addresses / connection types
Date 2019-04-17 08:40 +0200
Message-ID <xNMoF-2UL-3@gated-at.bofh.it> (permalink)
References <xNxSF-2oL-7@gated-at.bofh.it>
Organization Fiitelcom

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> Hi,
>
> I've been bedeviled by this question for a while, but have been unable
> to figure out a clean, non-hackish solution. It may be an XY problem ...
>
> I have a system (laptop, running Debian) that is sometimes connected
> directly to my LAN, and sometimes connected via VPN (wireguard, to the
> local router, running OpenWrt). The LAN is 192.168.0.0/24, with the
> laptop having a fixed, static address in that range (although I'm
> certainly open to using DHCP, possibly with a fixed address
> reservation). The VPN is 10.0.0.0/24, with the laptop getting a fixed,
> static address in that range (and wireguard apparently doesn't work
> with dhcp).
>
> I currently have an entry in /etc/hosts on the various LAN hosts
> assigning a hostname to the laptop's fixed local address, and the LAN
> hosts can access the laptop via that hostname. [I could alternatively
> use dnsmasq, which is running on the router regardless.] This obviously
> doesn't work when the laptop is connected via VPN. [The laptop can
> access the LAN hosts fine via their hostnames, so I seem to have the
> routing correctly configured on the laptop and the router.]
>
> What I seem to want (but maybe XY?) is some way to adjust the host
> files (or dnsmasq's information) so that the hostname will resolve to
> the LAN address when the laptop is connected to the LAN, and the VPN
> address when it's connected via VPN. If everything was using DHCP, this
> would be straightforward enough, but as I said, the VPN apparently
> needs to be configured statically, and not via DHCP. I could obviously
> use some custom script (using, say, ageas, to modify host files) but
> this seems hackish. What is a standard, 'correct' way to do this, or
> more generally, to enable the LAN hosts to access the laptop
> seamlessly regardless of its IP address and connection type?
>
> Celejar
>
Hi,

A possible solution is to use a bridged VPN, in this case, your laptop 
will always have the same IP.

Kevin

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Thread

Accessing a host with variable IP addresses / connection types Celejar <celejar@gmail.com> - 2019-04-16 17:10 +0200
  Re: Accessing a host with variable IP addresses / connection types Pascal Hambourg <pascal@plouf.fr.eu.org> - 2019-04-16 20:50 +0200
    Re: Accessing a host with variable IP addresses / connection types Celejar <celejar@gmail.com> - 2019-04-16 21:30 +0200
  Re: Accessing a host with variable IP addresses / connection types Richard Hector <richard@walnut.gen.nz> - 2019-04-17 03:50 +0200
    Re: Accessing a host with variable IP addresses / connection types Celejar <celejar@gmail.com> - 2019-04-17 04:20 +0200
  Re: Accessing a host with variable IP addresses / connection types Kevin DAGNEAUX <kevin.dagneaux@fiitelcom.fr> - 2019-04-17 08:40 +0200
    Re: Accessing a host with variable IP addresses / connection types Celejar <celejar@gmail.com> - 2019-04-17 14:20 +0200
      Re: Accessing a host with variable IP addresses / connection types Kevin DAGNEAUX <kevin.dagneaux@fiitelcom.fr> - 2019-04-17 15:40 +0200
        Re: Accessing a host with variable IP addresses / connection types Celejar <celejar@gmail.com> - 2019-04-17 18:00 +0200
      Re: Accessing a host with variable IP addresses / connection types Joe <joe@jretrading.com> - 2019-04-17 16:10 +0200
        Re: Accessing a host with variable IP addresses / connection types Celejar <celejar@gmail.com> - 2019-04-17 18:00 +0200
          Re: Accessing a host with variable IP addresses / connection types Michael Stone <mstone@debian.org> - 2019-04-17 18:20 +0200
            Re: Accessing a host with variable IP addresses / connection types Celejar <celejar@gmail.com> - 2019-04-17 18:40 +0200
              Re: Accessing a host with variable IP addresses / connection types Michael Stone <mstone@debian.org> - 2019-04-17 18:50 +0200
                [OT] IP address collisions (was: Accessing a host with variable IP  addresses / connection types) Pascal Hambourg <pascal@plouf.fr.eu.org> - 2019-04-17 21:40 +0200
                Re: [OT] IP address collisions (was: Accessing a host with variable  IP addresses / connection types) Curt <curty@free.fr> - 2019-04-17 22:10 +0200
                Re: [OT] IP address collisions (was: Accessing a host with variable  IP addresses / connection types) Michael Stone <mstone@debian.org> - 2019-04-18 15:00 +0200
                Re: [OT] IP address collisions (was: Accessing a host with variable  IP addresses / connection types) Nicholas Geovanis <nickgeovanis@gmail.com> - 2019-04-18 15:20 +0200
                Re: [OT] IP address collisions (was: Accessing a host with variable  IP addresses / connection types) Michael Stone <mstone@debian.org> - 2019-04-18 15:30 +0200
                Re: [OT] IP address collisions (was: Accessing a host with variable  IP addresses / connection types) Nicholas Geovanis <nickgeovanis@gmail.com> - 2019-04-18 22:40 +0200
                Re: [OT] IP address collisions (was: Accessing a host with variable   IP addresses / connection types) Dan Purgert <dan@djph.net> - 2019-04-18 17:10 +0200
                Re: [OT] IP address collisions Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2019-04-19 03:40 +0200
                Re: [OT] IP address collisions (was: Accessing a host with variable  IP addresses / connection types) Michael Stone <mstone@debian.org> - 2019-04-18 15:00 +0200
                Re: [OT] IP address collisions Pascal Hambourg <pascal@plouf.fr.eu.org> - 2019-04-18 20:50 +0200
                Re: Accessing a host with variable IP addresses / connection types Celejar <celejar@gmail.com> - 2019-04-18 00:20 +0200
                Re: Accessing a host with variable IP addresses / connection types Michael Stone <mstone@debian.org> - 2019-04-18 00:50 +0200
                Re: Accessing a host with variable IP addresses / connection types Celejar <celejar@gmail.com> - 2019-04-18 02:50 +0200
                Re: Accessing a host with variable IP addresses / connection types Michael Stone <mstone@debian.org> - 2019-04-18 15:00 +0200
                Re: Accessing a host with variable IP addresses / connection types Celejar <celejar@gmail.com> - 2019-04-18 16:10 +0200
                Re: Accessing a host with variable IP addresses / connection types Michael Stone <mstone@debian.org> - 2019-04-18 16:20 +0200
                Re: Accessing a host with variable IP addresses / connection types Michael Stone <mstone@debian.org> - 2019-04-18 16:50 +0200
                Re: Accessing a host with variable IP addresses / connection types Celejar <celejar@gmail.com> - 2019-05-03 23:00 +0200
                Re: Accessing a host with variable IP addresses / connection types Celejar <celejar@gmail.com> - 2019-04-18 16:50 +0200
      Re: Accessing a host with variable IP addresses / connection types Richard Hector <richard@walnut.gen.nz> - 2019-04-17 19:00 +0200
        Re: Accessing a host with variable IP addresses / connection types Celejar <celejar@gmail.com> - 2019-04-17 19:40 +0200
          Re: Accessing a host with variable IP addresses / connection types Richard Hector <richard@walnut.gen.nz> - 2019-04-20 20:30 +0200
            Re: Accessing a host with variable IP addresses / connection types Celejar <celejar@gmail.com> - 2019-04-25 20:20 +0200

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