Hi Simon, I'm not sure I understand the code correctly so I won't make any too big assumtions. Will the timer be set to last received lease-time or will it be set to a lower value to make sure the dhcp-server is found as soon as possible?
/Åke ----------------------------- Åke Forslund 0433-273296 NIBE AB Box 14 S-285 21 Markaryd Tel +46-(0)433-273296 From: "Simon Goldschmidt" <[email protected]> To: Mailing list for lwIP users <[email protected]> Date: 2011-09-26 13:04 Subject: Re: [lwip-users] DHCP-Autoip cooperation Sent by: [email protected] [email protected] wrote: > We are experiencing some trouble with some test setups regarding DHCP. We > beleive that at some point the DHCP-renew of the lease fails and AUTO-IP > kicks in. This is probably the intended behavour and is then working fine. > My question is how should this be handled by the system? I would like to > get a new IP as soon as possible if the dhcp becomes available again. Does > LWIPs Auto-ip/DHCP cooperation handle this at all or is it up to me to > detect that DHCP didn't manage to get an address and do periodic retries? When renewing the lease fails, DHCP starts AutoIP. However, the dhcp timer continues to run and once DHCP got a valid address again, it stops AutoIP and switches to the DHCP address. At least in our tests, this works fine (where we move between DHCP/AutoIP networks or plug/unplug the uplink cable where the DHCP server is connected). Simon -- NEU: FreePhone - 0ct/min Handyspartarif mit Geld-zurück-Garantie! Jetzt informieren: http://www.gmx.net/de/go/freephone _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
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