All of the platforms I have use a CMOS NVRAM with RTC built-in.
On 4/12/11 5:02 PM, Nuno Gonçalves wrote: > Please also note that the real time clock is important for knowing if > the DHCP lease is still valid. > Since most routers don't have a hardware RTC, there is no way to know > it the DHCP lease is still valid before you get WAN connectivity to > update the time with NTP. > > Nuno > > On Tue, Apr 12, 2011 at 05:15, Stefan Monnier <monn...@iro.umontreal.ca> > wrote: >>> I note that the file /tmp/state/network contains the interface, ip address, >>> and expiration time of the WAN DHCP lease... I'm wondering what's >>> involved in writing that information into somewhere persistent where it >>> can be reused on reboot? >> >> You may want to start by replacing the /var symlink to /tmp by >> a real directory. OpenWRT should be using the /var/state/network >> filename, so after performing the above change, the file will be >> preserved across reboots. If not, report it as a bug. >> I'm not sure if OpenWRT will later start udhcpd in such a way as to take >> advantage of this pre-existing file, but that's a second step. >> >> >> Stefan _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
