Hi,

I have a Debian 9 netbook here. Because I have an unusual setup here, I need to use manual IP address configuration. I used the default network manager to setup the static IPv4 and IPv6 addresses on the wifi interface. When I start the system, all works fine, and the correct IPs and routing information as I setup via the GUI are in place.

However, when there's a network upset (most probably due to the router rebooting, or some other wifi disturbance), the static IPs are gone and are replaced by a DHCP assigned IPv4 address. This causes a number of issues, breaking connectivity with the BBS that is running on the system.

In the good old days, I'd have done a total manual configuration, and this would have stuck, but I decided to use the tools provided for 2 reasons:

1. To work with the new ways of doing things, rather than figting the system.

2. To simplify the configuration of the wifi (i.e. not having to mess around with wpa-supplicant directly).

Anyone seen this behaviour? And better still, anyone have a solution?

---
■ Synchronet ■ Freeway BBS, Bendigo Australia. freeway.apana.org.au

Vk3jed wrote to All <=-

I have a Debian 9 netbook here. Because I have an unusual setup
here, I need to use manual IP address configuration. I used the
default network manager to setup the static IPv4 and IPv6
addresses on the wifi interface. When I start the system, all
works fine, and the correct IPs and routing information as I
setup via the GUI are in place.

However, when there's a network upset (most probably due to the
router rebooting, or some other wifi disturbance), the static IPs
are gone and are replaced by a DHCP assigned IPv4 address. This
causes a number of issues, breaking connectivity with the BBS
that is running on the system.

In the good old days, I'd have done a total manual configuration,
and this would have stuck, but I decided to use the tools
provided for 2 reasons:

1. To work with the new ways of doing things, rather than
figting the system.

2. To simplify the configuration of the wifi (i.e. not having to
mess around with wpa-supplicant directly).

Anyone seen this behaviour? And better still, anyone have a
solution?

I'm not a Debian expert, but I do use a couple of Raspberry Pi's
running Raspbian (which is basically Debian Stretch). What has
always worked fine for me is to edit /etc/dhcpcd.conf and just add
the following block on to the end of the file:

interface wlan0
static ip_address=192.168.1.99/24
static routers=192.168.1.1
static domain_name_servers=192.168.1.1

That's it. Obviously adjust IP's and maybe the interface name to
suit.

... Internal Error: The system has been taken over by sheep at line 19960
--- MultiMail/Linux v0.52
■ Synchronet ■ Palantir BBS * palantirbbs.ddns.net * Pensacola, FL

On 05-26-19 08:22, Dan Clough wrote to Vk3jed <=-

I'm not a Debian expert, but I do use a couple of Raspberry Pi's
running Raspbian (which is basically Debian Stretch). What has
always worked fine for me is to edit /etc/dhcpcd.conf and just add
the following block on to the end of the file:

interface wlan0
static ip_address=192.168.1.99/24
static routers=192.168.1.1
static domain_name_servers=192.168.1.1

That's it. Obviously adjust IP's and maybe the interface name to
suit.

Hmm, and IPv6 as well? Spose all I can do is give it a try. :)

Just had a look. Looks like my system is using dhclient. I've added the equivalent options (for IPv4) to dhclient.conf.


... We are the very model of cartoon individuals.
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■ Synchronet ■ Freeway BBS, Bendigo Australia. freeway.apana.org.au