Well, i've been at this off and on today. Not much dice....
to recap, I'm trying to use dhcp-client-identifier on a live cd
(eventually) so I can additional settings when they boot (without
affecting their normal setup while not on the livecd).
If someone else has invented this wheel, let me know where it is!
Just reply to the list. Thanks.
The configuration snippets and debug output follow:
dhcpd.conf (snippet)
class "supalive" {
# match if substring (option dhcp-client-identifier, 0, 7) = "supalive";
match if substring (option dhcp-client-identifier, 1, 8) = "supalive";
}
shared-network 10-40 {
#eth1:2 Link encap:Ethernet HWaddr 00:A0:C9:A4:C4:2F
# inet addr:10.40.255.254 Bcast:10.40.255.255 Mask:255.255.0.0
subnet 10.40.0.0 netmask 255.255.0.0 {
pool {
allow members of "supalive";
range 10.40.0.2 10.40.255.254;
option routers 10.40.0.1;
option root-path "riddle:/var/diskless/x86";
filename "/tftpboot/linux.x86-diskless-live";
}
}
#eth1 Link encap:Ethernet HWaddr 00:A0:C9:A4:C4:2F
# inet addr:10.0.0.1 Bcast:10.0.0.255 Mask:255.255.255.0
subnet 10.0.0.0 netmask 255.255.255.0 {
pool {
deny members of "supalive";
range 10.0.0.2 10.0.0.254;
option domain-name-servers 10.0.0.1;
option routers 10.0.0.1;
}
}
}
dhcpd3 -d -f
DHCPDISCOVER from 00:02:2a:c7:ca:eb via eth1
DHCPOFFER on 10.0.0.241 to 00:02:2a:c7:ca:eb via eth1
DHCPREQUEST for 10.0.0.241 (10.0.0.1) from 00:02:2a:c7:ca:eb via eth1
DHCPACK on 10.0.0.241 to 00:02:2a:c7:ca:eb via eth1
I want this to be in the 10.40.x.x range
tcpdump -i eth1 -lenx -s 1500 port bootps or port bootpc | dhcpdump
TIME: 05:48:24.536120
IP: 0.0.0.0.68 (00:02:2a:c7:ca:eb) > (ff:ff:ff:ff:ff:ff)
OP: 1 (BOOTPREQUEST)
HTYPE: 1 (Ethernet)
HLEN: 6
HOPS: 0
XID: c5b8a94f
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: 00:02:2a:c7:ca:eb:00:00:00:00:00:00:00:00:00:00
SNAME: .
FNAME: .
OPTION: 53 ( 1) DHCP message type 1 (DHCPDISCOVER)
OPTION: 50 ( 4) Request IP address 10.0.0.241
OPTION: 55 ( 9) Parameter Request List 1 (Subnet mask)
28 (Broadcast address)
2 (Time offset)
3 (Routers)
15 (Domainname)
6 (DNS server)
12 (Host name)
44 (NetBIOS name server)
47 (NetBIOS scope)
OPTION: 61 ( 8) Client-identifier 73:75:70:61:6c:69:76:65
---------------------------------------------------------------------------
TIME: 05:48:25.000438
IP: 10.0.0.1.67 (00:a0:c9:a4:c4:2f) > (00:02:2a:c7:ca:eb)
OP: 2 (BOOTPREPLY)
HTYPE: 1 (Ethernet)
HLEN: 6
HOPS: 0
XID: c5b8a94f
SECS: 0
FLAGS: 0
CIADDR: 0.0.0.0
YIADDR: 10.0.0.241
SIADDR: 0.0.0.0
GIADDR: 0.0.0.0
CHADDR: 00:02:2a:c7:ca:eb:00:00:00:00:00:00:00:00:00:00
SNAME: .
FNAME: .
OPTION: 53 ( 1) DHCP message type 2 (DHCPOFFER)
OPTION: 54 ( 4) Server identifier 10.0.0.1
OPTION: 51 ( 4) IP address leasetime 846000 (1w2d19h)
OPTION: 1 ( 4) Subnet mask 255.255.255.0
OPTION: 3 ( 4) Routers 10.0.0.1
OPTION: 15 ( 9) Domainname example.com
OPTION: 6 ( 4) DNS server 10.0.0.1
---------------------------------------------------------------------------
TIME: 05:48:25.001001
IP: 0.0.0.0.68 (00:02:2a:c7:ca:eb) > (ff:ff:ff:ff:ff:ff)
OP: 1 (BOOTPREQUEST)
HTYPE: 1 (Ethernet)
HLEN: 6
HOPS: 0
XID: c5b8a94f
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: 00:02:2a:c7:ca:eb:00:00:00:00:00:00:00:00:00:00
SNAME: .
FNAME: .
OPTION: 53 ( 1) DHCP message type 3 (DHCPREQUEST)
OPTION: 54 ( 4) Server identifier 10.0.0.1
OPTION: 50 ( 4) Request IP address 10.0.0.241
OPTION: 55 ( 9) Parameter Request List 1 (Subnet mask)
28 (Broadcast address)
2 (Time offset)
3 (Routers)
15 (Domainname)
6 (DNS server)
12 (Host name)
44 (NetBIOS name server)
47 (NetBIOS scope)
OPTION: 61 ( 8) Client-identifier 73:75:70:61:6c:69:76:65
---------------------------------------------------------------------------
TIME: 05:48:25.017781
IP: 10.0.0.1.67 (00:a0:c9:a4:c4:2f) > (00:02:2a:c7:ca:eb)
OP: 2 (BOOTPREPLY)
HTYPE: 1 (Ethernet)
HLEN: 6
HOPS: 0
XID: c5b8a94f
SECS: 0
FLAGS: 0
CIADDR: 0.0.0.0
YIADDR: 10.0.0.241
SIADDR: 0.0.0.0
GIADDR: 0.0.0.0
CHADDR: 00:02:2a:c7:ca:eb: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 10.0.0.1
OPTION: 51 ( 4) IP address leasetime 846000 (1w2d19h)
OPTION: 1 ( 4) Subnet mask 255.255.255.0
OPTION: 3 ( 4) Routers 10.0.0.1
OPTION: 15 ( 9) Domainname example.com
OPTION: 6 ( 4) DNS server 10.0.0.1
---------------------------------------------------------------------------
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