Bug #147
Router doesn't get DHCP address unless it's rebooted
New
High
Dave Täht
Description
If the router boots up without a WAN connection, it doesn’t get a dhcp address once connected. Needs a reboot.udhcpc is up, but not working properly.
History
Updated by Dave Täht on May 15, 2011.
There are patches that landed in main openwrt and my mailbox over the
last few days that revise link-state negotiation somewhat. They may
help. They may hurt. As extensive QA has already been performed down to
the kernel level, and fiddling with such a complex, critical system at
this late date introduces other risks, I would prefer to not deal with
this one, as it seems hard to reproduce.
unless this proves a serious problem (please, more people duplicate) I would prefer to remain frozen so that future routers can be updated via opkg rather than a complete new sysupgrade.
Updated by Dave Täht on May 22, 2011.
I will look further into this upon the next release of cerowrt and/or
iscwrt.
Updated by Dave Täht on May 22, 2011.
Updated by Dave Täht on Jul 31, 2011.
Updated by Jim Gettys on Sep 20, 2011.
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Toke's Blog - Karlstad University's work on bloat
Voip Users Conference - Weekly Videoconference mostly about voip
Candelatech - A wifi testing company that "gets it".
Behavior is udhcpc polls continuously for a DHCP address when the link is down. When the link goes up, theory is unless the main router has an ARP cache for the secondary router, it fails to provide an address.