DHCP server not handing out IP addresses

[Ryan McCain]

One more bit of information that might help..

3N2DHB1:~ # nmap -sU -p67 ns1    <---- x86 Server

Starting Nmap 4.20 ( http://insecure.org ) at 2008-08-04 12:17 CDT
Interesting ports on ns1.dss.la.gov (10.120.11.85):
PORT   STATE         SERVICE
67/udp open|filtered dhcps


3N2DHB1:~ # nmap -sU -p67 ns2   <---- s390x Server

Starting Nmap 4.20 ( http://insecure.org ) at 2008-08-04 12:17 CDT
Interesting ports on ns2.dss.la.gov (10.120.11.107):
PORT   STATE         SERVICE
67/udp open|filtered dhcps


..As you can see, the port looks to be ready to handle DHCP traffic on ns2.

Just to verify, there is no software firewall running on ns2:

ns2:~ # rcSuSEfirewall2 status
Checking the status of SuSEfirewall2                                  unused
ns2:~ #               


...??

>>> On Mon, Aug 4, 2008 at 11:01 AM, in message
<4896E190.A79C.003A.0 at dss.state.la.us>, "Ryan McCain"
<Ryan.McCain at dss.state.la.us> wrote: 
> To add to the oddness of this.  I originally had failover configured and when 
> the primary would go down, the secondary would pick up.  So, DHCPD seems to 
> be functioning, its just no requests are getting to it.   The logs don't show 
> any errors either.
> 
> 

--------------------------------------

Ryan McCain
Northrop Grumman Corporation
Linux System Administrator 3 (CLP / LPIC-2)
email: ryan.mccain at dss.la.gov
Phone: 225.219.0556

Registered Linux User #364609











>>>> On Mon, Aug 4, 2008 at 10:35 AM, in message
> <4896DB64.A79C.003A.0 at dss.state.la.us>, "Ryan McCain"
> <Ryan.McCain at dss.state.la.us> wrote: 
>> I recently attempted to migrate DHCPD from SLES10 x86 to SLES10 s390x.  I 
>> have  a primary and secondary server.
>> 
>> Everything worked fine when DHCPD was running was on the x86 servers.  I've 
>> used tcpdump to verify that no DHCP requests are even hitting the SLES10 
>> s390x servers.  I've turned off all software firewalls.  All DHCP helpers on 
> 
>> the routers have been updated.  Also, when I take the config file from a 
>> SLES10 s390x server and move it to a SLES10 x86 server, it works fine on the 
> 
>> SLES10 x86 server.
>> 
>> The version of DHCP on both platforms is dhcp-3.0.3-23.33.
>> 
>> Any ideas?  Is there something in the mainframe world that needs to be 
>> configured to allow in UDP traffic on port 67?
>> 
>> Thanks, 
>> Ryan