Preamble: a Dynamic Host Configuration Protocol session has typical four packets: D.O.R.A.:
Discover ( comes from client) Offer ( from server) Request ( from client ) Acknowledge ( from server ) On Mon, Sep 14, 2015 at 12:29:16PM +0200, Oliver Kopp wrote: > Same issue here. FWIW: I don't think so ... > DHCP server log here: > > Sep 14 12:25:53 iaas2 dhcpd: DHCPDISCOVER from 00:50:56:85:c2:a2 via eth0: > load balance to peer iaas The Discover. (remark: I mis DHCPOFFER ) > Sep 14 12:25:53 iaas2 dhcpd: DHCPREQUEST for 10.0.1.28 (10.0.1.1) from > 00:50:56:85:c2:a2 via eth0: wrong network. Client requests 10.0.1.28, Server allready knows "wrong network" > Sep 14 12:25:53 iaas2 dhcpd: DHCPNAK on 10.0.1.28 to 00:50:56:85:c2:a2 via > eth0 Server sends "DHCPNAK", Negative AcKnowledge, to client. > Sep 14 12:25:56 iaas2 dhcpd: DHCPDISCOVER from 00:50:56:85:c2:a2 via eth0: > load balance to peer iaas Client does a new Discover (remark: DHCPOFFER is _not_ in the logging ) > Sep 14 12:25:56 iaas2 dhcpd: DHCPREQUEST for 129.69.214.124 (129.69.214.2) > from 00:50:56:85:c2:a2 via eth0 Client requests 129.69.214.124 this time. > Sep 14 12:25:56 iaas2 dhcpd: DHCPACK on 129.69.214.124 to 00:50:56:85:c2:a2 > via eth0 DHCP server ACKnowledges the request for 129.69.214.124 to DHCP client. > It seems that uhcpc treats the first answer only. That observartion / conclusion does NOT match the logging with D.R.N.D.R.A.: > Sep 14 12:25:53 dhcpd: DHCPDISCOVER from 00:50:56:85:c2:a2 > Sep 14 12:25:53 dhcpd: DHCPREQUEST for 10.0.1.28 (10.0.1.1) from > 00:50:56:85:c2:a2 > Sep 14 12:25:53 dhcpd: DHCPNAK on 10.0.1.28 to 00:50:56:85:c2:a2 > Sep 14 12:25:56 dhcpd: DHCPDISCOVER from 00:50:56:85:c2:a2 > Sep 14 12:25:56 dhcpd: DHCPREQUEST for 129.69.214.124 (129.69.214.2) from > 00:50:56:85:c2:a2 > Sep 14 12:25:56 dhcpd: DHCPACK on 129.69.214.124 to 00:50:56:85:c2:a2 Request to Oliver: Please elaborate: It seems that uhcpc treats the first answer only. My advice to Oliver: Check your LAN and search for 10.0.1.1. That 10.0.1.1. is from > Sep 14 12:25:53 iaas2 dhcpd: DHCPREQUEST for 10.0.1.28 (10.0.1.1) from > 00:50:56:85:c2:a2 via eth0 Groeten Geert Stappers Looking forward for a response on this ticket (which is original from April 1st 2014 ... ) -- Leven en laten leven
