On Friday, 20 July 2018 08:58:53 BST Matti Nykyri wrote:
> Hey
>
> I have a following with Telia ISP and their dhcp-server... I'm using
> dhclient to get dynamic IP from ISP and also to update DDNS. When
> dhclient does DHCPDISCOVER the ISP will issue a new lease for 43200 sec
> after a normal DHCPOFFER, DHCPREQUEST and DHCPACK cycle; and the
> interface gets bound to the given address. Now when the dhclient does a
> subsequent DHCPREQUEST, server will issue DHCP with a declining
> lease-time ending at the same time as original 43200s lease. By
> releasing the lease and doing a new DHCPDISCOVER the lease time is reset
> to 43200s. The ISP how ever keeps track of the MAC and will always issue
> the same IP.
>
> When the lease-time of 43200 runs out the default gw stops responding
> and the internet connection dies. The only way to then get it to work is
> to manually start a new discover cycle (ifdown - ifup).
>
> I would like to configure the interface so, that there would not be an
> interuption in network traffic! Because the IP doesn't change, I would
> like to configure the WAN interface to stay up with the IP all the time
> and get dhclient to do DHCPDISCOVER to the ISP to update ISP-firewall to
> let the traffic through for the next 43200 sec. If the IP changes for
> some reason, I would like the dhclient to update the WAN interface.
>
> Would there be a ready way in Gentoo to achieve this? Or anyway :'D
>
> Ps. I hate my ISP :(
> Pps. I have other problems too...
I am not familiar with dhclient, although whenever I used it in various
distros it just worked. Have you tried using dhcpcd instead?
--
Regards,
Mick
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