On Tue, 03 Jan 2023 07:40:21 +0100 "Bodie" <bo...@bodie.cz> wrote:
> On Mon Jan 2, 2023 at 8:53 PM CET, Rob Schmersel wrote: > > On Mon, 2 Jan 2023 13:44:30 +0100 > > Tomaž Kokolj <tomaz.kok...@gmail.com> wrote: > > > > > Hi everyone, > > > > > > I've requested a static IP from my ISP a long time ago and I > > > figured out that my ISP binds my IP based on a MAC address which > > > is connected to my WAN port. > > > > > > I was thinking about switching from Debian Linux to OpenBSD on my > > > router, but I can't figure out how to change my MAC address. > > > > > > I've tried the the following configurations for my > > > /etc/hostname.em0 (I'm testing this in VirtualBox): > > > # > > > inet autoconf lladdr 00:11:22:33:44:55 > > > # > > > > > > # > > > lladdr 00:11:22:33:44:55 > > > inet autoconf > > > # > > > > > > # > > > inet autoconf > > > lladdr 00:11:22:33:44:55 > > > # > > > In all of those configurations, my lladdr gets changed to > > > 00:11:22:33:44:55 but the inet line is missing from ifconfig which > > > means that my network isn't working. > > > > > > I have found this old (2012) blog post: > > > https://andrewmemory.wordpress.com/2012/12/06/changing-mac-address-on-openbsd/ > > > > > > Which suggested: > > > "Linux has /etc/network/interfaces, and OpenBSD has > > > /etc/hostname.if. I just changed my /etc/hostname.vr1 to: > > > > > > dhcp lladdr 00:11:22:33:44:55 > > > > > > and I was requesting an IP address using my new MAC address" > > > > > > If I do that my inet line is present and my network/internet is > > > working, but my lladdr line isn't changed. > > > > > > Any suggestions? > > > > > > Best regards, > > > Tomaz > > > > My ISPs (one at the house, one at my son's apartment) have the same > > setup and I'm using this in /etc/hostname.em0 > > > lladdr 00:11:22:33:44:55 > > > inet autoconf > > > > This will give the correct IP address in both cases. > > > > Good luck > > Which is interesting that it works as man page talks about this > format: > > IPv4 dynamic addressing via DHCP is requested using "inet autoconf" > inet autoconf [ifconfig_options] > The ISP has not really set a static ip, but uses dhcp server to set a fixed IP address based on your MAC address. You can configure such in dhcpd.conf with something like the following: subnet 192.168.1.0 netmask 255.255.255.0 { option routers 192.168.1.1; range 192.168.1.24 192.168.1.200; # Network # example host host { fixed-address 192.168.1.250; hardware ethernet 00:11:22:33:44:55; }
