When you do your packet capture, if you can, do a simultaneous tshark capture 
on the pf box , that would be helpful.  Post them here and I'll give them a 
look too if you want.  

Jake Sallee
Godfather Of Bandwidth
Network Engineer

Fone: 254-295-4658
Phax: 254-295-4221



-----Original Message-----
From: Mark Holmes [mailto:[email protected]] 
Sent: Tuesday, February 22, 2011 3:17 AM
To: [email protected]
Subject: Re: [Packetfence-users] Fwd: VLAN assignment and DHCP

Jake, 

Thanks for the reply.

It is seeing the port up/down.  I'm about to do a packet cap to make sure that 
it's sending DHCPREQUEST, but I have no reason to suspect it isn't - I think 
that it sends the request but dhcpd on the PF box never see's it.

Regards,

Mark




-----Original Message-----
From: Sallee, Stephen (Jake) [mailto:[email protected]]
Sent: 21 February 2011 19:40
To: [email protected]
Subject: Re: [Packetfence-users] Fwd: VLAN assignment and DHCP

Check to make sure the client is seeing the port go down, I have seen in 
windows if the port goes down and comes back too fast the client will not 
notice the change and will not arp for a new dhcp address.

Jake Sallee
Godfather Of Bandwidth
Network Engineer

Fone: 254-295-4658
Phax: 254-295-4221


-----Original Message-----
From: Mark Holmes [mailto:[email protected]]
Sent: Monday, February 21, 2011 10:20 AM
To: [email protected]
Subject: Re: [Packetfence-users] Fwd: VLAN assignment and DHCP

Yes, my production DHCP server will handle IP addresses for the production 
network.

There is no overlapping of scopes at all.

Reg and Iso vlans are handled by dhcpd on pf box

Production networks are handled by dhcp on a separate server.  I have 
interfaces with a dhcplistener running on them so pf can 'see' the dhcp traffic 
on the production nets as per the manual.

As I said, dhcpd is configured correctly as if I put a port into the reg vlan 
manually via the switch CLI it picks up an IP - it's just when Packetfence puts 
the port into reg vlan, no dhcp request is ever receieved on the pf box and so 
the client doesn't get an IP.

Thanks,

Mark
 





-----Original Message-----
From: Manueco, Antonio [mailto:[email protected]]
Sent: 21 February 2011 15:29
To: [email protected]
Subject: Re: [Packetfence-users] Fwd: VLAN assignment and DHCP

Who's leasing the IP's for your Production (Normal) VLAN?  This should be a 
DHCP server in your production VLAN that gives you the correct IP and DNS 
information once you've registered with PF.  Make sure the scopes don't overlap 
with the PF DHCP ranges.




-----Original Message-----
From: Mark Holmes [mailto:[email protected]]
Sent: Monday, February 21, 2011 6:28 AM
To: [email protected]
Subject: Re: [Packetfence-users] Fwd: VLAN assignment and DHCP

I do, yes.  I'm using pf as the dhcp for the reg and iso VLANS.

I know dhcpd is working correctly, as if I manually put a port into the 
registration VLAN using the switch CLI it picks up an IP in the registration 
range.

Thanks,

Mark




-----Original Message-----
From: Manueco, Antonio [mailto:[email protected]]
Sent: 21 February 2011 03:05
To: [email protected]
Subject: Re: [Packetfence-users] Fwd: VLAN assignment and DHCP

Do you have a DHCP server listening on that VLAN?

-Antonio Manueco

Sent via Mobile.

On Feb 20, 2011, at 7:04 PM, Mark Holmes <[email protected]> wrote:

> 
> Anyone have any thoughts on this?
> 
> Thanks,
> 
> Mark
> 
> From: Mark Holmes
> <[email protected]<mailto:[email protected]>>
> Date: 18 February 2011 09:37:11 GMT
> To: 
> "'[email protected]<mailto:packetfence-users@lis
> ts.sourceforge.net>'" 
> <[email protected]<mailto:packetfence-users@list
> s.sourceforge.net>>
> Subject: [Packetfence-users] VLAN assignment and DHCP
> Reply-To: 
> "[email protected]<mailto:packetfence-users@list
> s.sourceforge.net>" 
> <[email protected]<mailto:packetfence-users@list
> s.sourceforge.net>>
> 
> Hi all,
> 
> I have got Packetfence set up, it's putting ports into the various VLANS 
> (registration, main network etc) correctly but then once the port has 
> changed, nothing happens and the DHCP request times out.
> 
> I'm using port security as that is supported with this switch (a 3Com
> 4200G)
> 
> 
> For example
> -----------
> Connect new machine
> 
> Port put into VLAN 50 by PF (registration VLAN) - I confirm this on 
> the switch
> 
> But no answer from DHCP on registration network (dhcpd running on PF)
> 
> Same if I register the machine (via the admin console) and put plug it in - 
> the port goes into the correct VLAN, but DHCP doesn't get an answer.
> 
> Running tcpdump on the registration interface shows no dhcp request is 
> received on the registration interface of the PF box.
> 
> If I manually put another port into the registration VLAN and plug into that, 
> it gets an IP from the reg subnet and when I then open a browser the 
> registration page appears - so the dhcpd is configured correctly etc.
> 
> Any ideas, anyone?
> 
> Cheers,
> 
> Mark
> 
> 
> 
> 
> ----------------------------------------------------------------------
> -------- The ultimate all-in-one performance toolkit: Intel(R) 
> Parallel Studio XE:
> Pinpoint memory and threading errors before they happen.
> Find and fix more than 250 security defects in the development cycle.
> Locate bottlenecks in serial and parallel code that limit performance.
> http://p.sf.net/sfu/intel-dev2devfeb
> _______________________________________________
> Packetfence-users mailing list
> [email protected]<mailto:Packetfence-users@lists
> .sourceforge.net>
> https://lists.sourceforge.net/lists/listinfo/packetfence-users
> ----------------------------------------------------------------------
> -------- The ultimate all-in-one performance toolkit: Intel(R) 
> Parallel Studio XE:
> Pinpoint memory and threading errors before they happen.
> Find and fix more than 250 security defects in the development cycle.
> Locate bottlenecks in serial and parallel code that limit performance.
> http://p.sf.net/sfu/intel-dev2devfeb
> _______________________________________________
> Packetfence-users mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/packetfence-users

------------------------------------------------------------------------------
The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE:
Pinpoint memory and threading errors before they happen.
Find and fix more than 250 security defects in the development cycle.
Locate bottlenecks in serial and parallel code that limit performance.
http://p.sf.net/sfu/intel-dev2devfeb
_______________________________________________
Packetfence-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/packetfence-users

------------------------------------------------------------------------------
The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE:
Pinpoint memory and threading errors before they happen.
Find and fix more than 250 security defects in the development cycle.
Locate bottlenecks in serial and parallel code that limit performance.
http://p.sf.net/sfu/intel-dev2devfeb
_______________________________________________
Packetfence-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/packetfence-users

------------------------------------------------------------------------------
The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE:
Pinpoint memory and threading errors before they happen.
Find and fix more than 250 security defects in the development cycle.
Locate bottlenecks in serial and parallel code that limit performance.
http://p.sf.net/sfu/intel-dev2devfeb
_______________________________________________
Packetfence-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/packetfence-users

------------------------------------------------------------------------------
The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE:
Pinpoint memory and threading errors before they happen.
Find and fix more than 250 security defects in the development cycle.
Locate bottlenecks in serial and parallel code that limit performance.
http://p.sf.net/sfu/intel-dev2devfeb
_______________________________________________
Packetfence-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/packetfence-users

------------------------------------------------------------------------------
The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE:
Pinpoint memory and threading errors before they happen.
Find and fix more than 250 security defects in the development cycle.
Locate bottlenecks in serial and parallel code that limit performance.
http://p.sf.net/sfu/intel-dev2devfeb
_______________________________________________
Packetfence-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/packetfence-users

------------------------------------------------------------------------------
Index, Search & Analyze Logs and other IT data in Real-Time with Splunk 
Collect, index and harness all the fast moving IT data generated by your 
applications, servers and devices whether physical, virtual or in the cloud.
Deliver compliance at lower cost and gain new business insights. 
Free Software Download: http://p.sf.net/sfu/splunk-dev2dev
_______________________________________________
Packetfence-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/packetfence-users

------------------------------------------------------------------------------
Index, Search & Analyze Logs and other IT data in Real-Time with Splunk 
Collect, index and harness all the fast moving IT data generated by your 
applications, servers and devices whether physical, virtual or in the cloud.
Deliver compliance at lower cost and gain new business insights. 
Free Software Download: http://p.sf.net/sfu/splunk-dev2dev
_______________________________________________
Packetfence-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/packetfence-users

Reply via email to