[En-Nut-Discussion] DHCP and four Ethernuts, IP conflict

Harald Kipp harald.kipp at egnite.de
Tue Apr 29 16:16:31 CEST 2003


This bug had been reported recently. The problem is, that Ethernut
doesn't use a random XID. With the broadcast method, two Ethernuts
may accept the same response.

One idea was to use the MAC address for creating a random value.

Harald

At 10:17 29.04.2003 +0200, you wrote:
>Hello!
>
>I have tried to set up a network with four ethernuts connected to PC via an
>ethernet switch.
>Now I have some problems with my dhcp sever  running on the PC (I am using
>Tftpd32
>version 2.54.) The first and the third unit that connect get the same
>IP-number. If I start
>with 192.168.0.10 for the first one, the second gets 192.168.0.11, the third
>gets 192.168.0.10
>and the fourth unit gets 192.168.0.12. The first and third units always get
>the same IP address.
>
>Does anyone have a suggestion of how to solve this problem?
>
>
>Regards
>Tom Nyström
>
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