DHCP reply not leaving machine
Rok Kosir
rok.kosir at cosylab.com
Tue Oct 22 16:32:54 CEST 2013
Hi,
after multiple recompilation of FR (both version 2.2 and 3.0.1) i was
not able to configure DHCP server so that clients would get IPs.
I am currently testing on ubuntu 12.04.3 server which has connected
Ubuntu 12.04 desktop version laptop on eth1 trying to get IP.
I see multiple requests comming to server but no reply reaches the
client (nor ethernet card).
FR is built from source and following this configuration
http://wiki.freeradius.org/guide/dhcp-for-static-ip-allocation (with
exception of using mac2ip for IP filetable).
Here is relevant info on server:
eth1: inet addr:192.168.0.1
dhcp config:
server dhcp {
listen {
ipaddr = 255.255.255.255
port = 67
type = dhcp
interface = eth1
dhcp DHCP-Discover {
update reply {
DHCP-Message-Type = DHCP-Offer
}
# The contents here are invented. Change them!
update reply {
DHCP-Domain-Name-Server = 192.168.0.1
DHCP-Domain-Name-Server = 193.2.1.66
DHCP-Subnet-Mask = 255.255.255.0
DHCP-Router-Address = 192.168.0.1
DHCP-IP-Address-Lease-Time = 86400
DHCP-DHCP-Server-Identifier = 192.168.0.1
}
mac2ip
ok
}
dhcp DHCP-Request {
update reply {
DHCP-Message-Type = DHCP-Ack
}
# The contents here are invented. Change them!
update reply {
DHCP-Domain-Name-Server = 192.168.0.1
DHCP-Domain-Name-Server = 193.2.1.66
DHCP-Subnet-Mask = 255.255.255.0
DHCP-Router-Address = 192.168.0.1
DHCP-IP-Address-Lease-Time = 86400
DHCP-DHCP-Server-Identifier = 192.168.0.1
}
mac2ip
ok
}
dhcp {
# send a DHCP NAK.
reject
}
}
radiusd -X output is here: http://pastebin.com/raw.php?i=yY1aNf6v
i have used tcpdump to check port 67 and 68, but only requests come in,
no reply is released to ethernet card.
Any suggestions?
Regards,
Rok
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