Date: Sat, 11 Oct 2014 17:10:23 +0200 From: Christian Alge <lists@burnus.net> To: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: Re: Server insists on wrong hostname Message-ID: <5439485F.4000002@burnus.net> In-Reply-To: <54393DBD.4030602@sorbs.net> References: <5438F7A4.4070908@burnus.net> <54392A57.7020704@sorbs.net> <54393142.4050005@burnus.net> <5439326B.3070508@sorbs.net> <54393C76.7090702@burnus.net> <54393DBD.4030602@sorbs.net>
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I do not know, how to put it in debug mode. The manpages of dhclient and
dhclient.conf are not very helpful..
Instead I reinvoked dhclient for the interface with dhcpdump running.
The output looks right to me (see below, slightly obfuscated).. Notice
that both the request and the reply contain the correct hostname (in
option 12). However, the hostname does not seem to be set in the end
(hostname still reports the old name).
And yes, I did restart the DHCP server after changing the config.
TIME: 2014-10-11 16:58:09.563
IP: 192.168.1.5 (00:22:xx:xx:xx:xx) > 255.255.255.255
(ff:ff:ff:ff:ff:ff)
OP: 1 (BOOTPREQUEST)
HTYPE: 1 (Ethernet)
HLEN: 6
HOPS: 0
XID: xxxxxxxx
SECS: 0
FLAGS: 0
CIADDR: 0.0.0.0
YIADDR: 0.0.0.0
SIADDR: 0.0.0.0
GIADDR: 0.0.0.0
CHADDR: 00:22:xx:xx:xx:xx:00:00:00:00:00:00:00:00:00:00
SNAME: .
FNAME: .
OPTION: 53 ( 1) DHCP message type 3 (DHCPREQUEST)
OPTION: 50 ( 4) Request IP address 192.168.1.5
OPTION: 61 ( 7) Client-identifier 01:00:22:xx:xx:xx:xx
OPTION: 12 ( 12) Host name freieenergie
OPTION: 55 ( 9) Parameter Request List 1 (Subnet mask)
28 (Broadcast address)
2 (Time offset)
121 (Classless Static Route)
3 (Routers)
15 (Domainname)
6 (DNS server)
12 (Host name)
119 (Domain Search)
---------------------------------------------------------------------------
TIME: 2014-10-11 16:58:09.564
IP: 192.168.1.1 (a0:f3:xx:xx:xx:xx) > 192.168.1.5 (00:22:xx:xx:xx:xx)
OP: 2 (BOOTPREPLY)
HTYPE: 1 (Ethernet)
HLEN: 6
HOPS: 0
XID: a4xxxxxx
SECS: 0
FLAGS: 0
CIADDR: 0.0.0.0
YIADDR: 192.168.1.5
SIADDR: 192.168.1.1
GIADDR: 0.0.0.0
CHADDR: 00:22:xx:xx:xx:xx:00:00:00:00:00:00:00:00:00:00
SNAME: .
FNAME: .
OPTION: 53 ( 1) DHCP message type 5 (DHCPACK)
OPTION: 54 ( 4) Server identifier 192.168.1.1
OPTION: 51 ( 4) IP address leasetime 43200 (12h)
OPTION: 58 ( 4) T1 21600 (6h)
OPTION: 59 ( 4) T2 37800 (10h30m)
OPTION: 1 ( 4) Subnet mask 255.255.255.0
OPTION: 28 ( 4) Broadcast address 192.168.1.255
OPTION: 3 ( 4) Routers 192.168.1.1
OPTION: 6 ( 4) DNS server 192.168.1.1
OPTION: 15 ( 3) Domainname lan
OPTION: 12 ( 12) Host name freieenergie
---------------------------------------------------------------------------
Michelle Sullivan schrieb:
> Put the DHCP client in debug mode - it's most likely coming from the
> DHCP server (did you restart it after changing the config?)
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