One dumb question, how can I setup lxc-net to support a subnet larger than 253? I tried following: LXC_NETWORK="10.0.3.0/16" LXC_DHCP_RANGE="10.0.3.2,10.0.254.254,1h" LXC_DHCP_MAX="61500"
New container can't get IP with such settings. Thanks, Dan On Fri, Apr 10, 2015 at 3:34 PM, Dan Shi <[email protected]> wrote: > Hi Fajar, > > Thanks for the reply! I tried to stop container gracefully (lxc-stop), but > the IP is not released, I can still find it in > /var/lib/misc/dnsmasq.lxcbr0.leases. > > However, the IP assignment does get cleaned up after a while (once a day?) > it seems to be controlled by lease time, maybe default to 24 hours. I will > look into that. > > Thanks, > Dan > > > On Thu, Apr 9, 2015 at 3:39 PM, Fajar A. Nugraha <[email protected]> wrote: > >> On Fri, Apr 10, 2015 at 5:29 AM, Dan Shi <[email protected]> wrote: >> > I ran into a problem that only 253 containers get network connection. >> New >> > containers after that can't getIP from lxc bridge, even if I >> stop/destroy >> > existing running containers. The problem, apparently, is that the >> default in >> > /etc/default/lxc-net, has LXC_DHCP_MAX set to 253. >> > >> > I suppose I can increase that number to have a large enough subnet. >> However, >> > I'm wondering if there is a more elegant solution. For example, I can >> > periodically call a script, or call it before destroying a container, to >> > release IP for dead containers? >> >> The elegant solution should be letting the container shutdown >> gracefully (IIRC the default with lxc-stop since some time), which >> should release its DHCP lease. >> >> You could also look at /var/lib/misc/dnsmasq.lxcbr0.leases , but IMHO >> it's not worth the effort. Simply adjust /etc/default/lxc-net >> according to your needs (including changing its address and netmask if >> you plan to use more than 253 max dhcp clients) and shutdown your >> containers cleanly whenever possible. >> >> See also dnsmasq man page >> (http://www.thekelleys.org.uk/dnsmasq/docs/dnsmasq-man.html). >> >> -- >> Fajar >> _______________________________________________ >> lxc-users mailing list >> [email protected] >> http://lists.linuxcontainers.org/listinfo/lxc-users > > >
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