Discussion:
Slow PXE and Windows Boot with active MAC Authentication
Matthias Nees
2013-07-02 10:49:56 UTC
Permalink
Hi All,

are there any problems with PXE and Windows Boot when MAC Authentication is active on a Enterasys SecureStack switches?
We uses B5 / C5 Edge Switches with recent Firmware (6.61.08). NAC Gateway is running with Version 4.3.

PXE and Windows boot takes nearly double of time when MAC Authentication is active compare to a port where only same policy is manually applied. The problem is that windows needs a lot of time to get an ip address (via DHCP) and set it active then - so users getting very slow login screens and sometimes error messages.

Troubleshooting shows us that RADIUS Server (NAC Gateway) response the correct Policy very fast. Policy is also applied to the port correctly. The station is also learned in the correct VLAN. It seems MAC authentication is working well. But if I disable MAC Auth boot process is normal. If I activate Authentication again it needs more time.


Anyone out there that has similar problems ?



Mit freundlichen Gruessen / Best Regards

Matthias Nees
Systemingenieur

BELL Computer-Netzwerke GmbH
Ohmstr. 6
76229 Karlsruhe
Deutschland
Tel.:

+49 (721) 6624993-65

Fax:

+49 (228) 42104 9065

E-Mail:

***@bell.de<mailto:***@bell.de>

Web:

www.bell.de<http://www.bell.de/>

[cid:***@01CE7722.03F87110]

[cid:***@01CE7722.03F87110]
Patrick Printz
2013-07-02 10:54:44 UTC
Permalink
We use MAC auth and 802.1x on all of our edge ports. We are running G3's on similar firmware. The end user devices do not experience any difference for us in the boot time with authentication on or off. When you disable MAC authentication, is the port wide open? What policy is applied to the port when authentication is on? Perhaps something being applied is causing the slowdown?

Patrick Printz
Network Infrastructure

Quinsigamond Community College
670 West Boylston Street
Worcester, MA 01606-2092
w. 508-854-7517
c. 508-726-9529


"If a man is called a street sweeper, he should sweep streets even as Michelangelo painted, or Beethoven composed music, or Shakespeare wrote poetry. He should sweep streets so well that all the hosts of heaven and Earth will pause to say, Here lived a great street sweeper who did his job well."
~Martin Luther King, Jr.

From: Matthias Nees [mailto:***@bell.de]
Sent: Tuesday, July 02, 2013 6:50 AM
To: Enterasys Customer Mailing List
Subject: [enterasys] Slow PXE and Windows Boot with active MAC Authentication

Hi All,

are there any problems with PXE and Windows Boot when MAC Authentication is active on a Enterasys SecureStack switches?
We uses B5 / C5 Edge Switches with recent Firmware (6.61.08). NAC Gateway is running with Version 4.3.

PXE and Windows boot takes nearly double of time when MAC Authentication is active compare to a port where only same policy is manually applied. The problem is that windows needs a lot of time to get an ip address (via DHCP) and set it active then - so users getting very slow login screens and sometimes error messages.

Troubleshooting shows us that RADIUS Server (NAC Gateway) response the correct Policy very fast. Policy is also applied to the port correctly. The station is also learned in the correct VLAN. It seems MAC authentication is working well. But if I disable MAC Auth boot process is normal. If I activate Authentication again it needs more time.


Anyone out there that has similar problems ?



Mit freundlichen Gruessen / Best Regards

Matthias Nees
Systemingenieur

BELL Computer-Netzwerke GmbH
Ohmstr. 6
76229 Karlsruhe
Deutschland
Tel.:

+49 (721) 6624993-65

Fax:

+49 (228) 42104 9065

E-Mail:

***@bell.de<mailto:***@bell.de>

Web:

www.bell.de<http://www.bell.de/>

[cid:***@01CE76F1.06FEC980]

[cid:***@01CE76F1.06FEC980]



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To unsubscribe from enterasys, send email to ***@unc.edu with the body: unsubscribe enterasys gneu-***@gmane.org
Patrick Printz
2013-07-02 11:44:23 UTC
Permalink
The DHCP server is on a different vlan and subnet I am guessing. Is the ip-helper set for the subnet the PC is trying to connect to? Have you tried running a wireshark to see what is happening with the DHCP packets?

We ran into something similar with Avaya VoIP phones. The phones were being very fickle about DHCP packets being relayed by the IP Helper. I ended up sticking a DHCP server on their subnet. However, with Windows, I have not seen any issues having systems on a subnet or vlan separate from that of the DHCP server.

Patrick Printz
Network Infrastructure

Quinsigamond Community College
670 West Boylston Street
Worcester, MA 01606-2092
w. 508-854-7517
c. 508-726-9529


"If a man is called a street sweeper, he should sweep streets even as Michelangelo painted, or Beethoven composed music, or Shakespeare wrote poetry. He should sweep streets so well that all the hosts of heaven and Earth will pause to say, Here lived a great street sweeper who did his job well."
~Martin Luther King, Jr.

From: Matthias Nees [mailto:***@bell.de]
Sent: Tuesday, July 02, 2013 7:06 AM
To: Enterasys Customer Mailing List
Subject: [enterasys] AW: Slow PXE and Windows Boot with active MAC Authentication

Hi,

we only using a policy that cotains VLAN information:
set policy profile 2 name "PCs" pvid-status enable pvid 4 cos-status enable cos 8 untagged-vlans 4

If I apply the same policy to that port without mac auth all working well.

Regards

Von: Patrick Printz [mailto:***@qcc.mass.edu]
Gesendet: Dienstag, 2. Juli 2013 12:55
An: Enterasys Customer Mailing List
Betreff: RE:[enterasys] Slow PXE and Windows Boot with active MAC Authentication

We use MAC auth and 802.1x on all of our edge ports. We are running G3's on similar firmware. The end user devices do not experience any difference for us in the boot time with authentication on or off. When you disable MAC authentication, is the port wide open? What policy is applied to the port when authentication is on? Perhaps something being applied is causing the slowdown?

Patrick Printz
Network Infrastructure

Quinsigamond Community College
670 West Boylston Street
Worcester, MA 01606-2092
w. 508-854-7517
c. 508-726-9529


"If a man is called a street sweeper, he should sweep streets even as Michelangelo painted, or Beethoven composed music, or Shakespeare wrote poetry. He should sweep streets so well that all the hosts of heaven and Earth will pause to say, Here lived a great street sweeper who did his job well."
~Martin Luther King, Jr.

From: Matthias Nees [mailto:***@bell.de]
Sent: Tuesday, July 02, 2013 6:50 AM
To: Enterasys Customer Mailing List
Subject: [enterasys] Slow PXE and Windows Boot with active MAC Authentication

Hi All,

are there any problems with PXE and Windows Boot when MAC Authentication is active on a Enterasys SecureStack switches?
We uses B5 / C5 Edge Switches with recent Firmware (6.61.08). NAC Gateway is running with Version 4.3.

PXE and Windows boot takes nearly double of time when MAC Authentication is active compare to a port where only same policy is manually applied. The problem is that windows needs a lot of time to get an ip address (via DHCP) and set it active then - so users getting very slow login screens and sometimes error messages.

Troubleshooting shows us that RADIUS Server (NAC Gateway) response the correct Policy very fast. Policy is also applied to the port correctly. The station is also learned in the correct VLAN. It seems MAC authentication is working well. But if I disable MAC Auth boot process is normal. If I activate Authentication again it needs more time.


Anyone out there that has similar problems ?



Mit freundlichen Gruessen / Best Regards

Matthias Nees
Systemingenieur

BELL Computer-Netzwerke GmbH
Ohmstr. 6
76229 Karlsruhe
Deutschland
Tel.:

+49 (721) 6624993-65

Fax:

+49 (228) 42104 9065

E-Mail:

***@bell.de<mailto:***@bell.de>

Web:

www.bell.de<http://www.bell.de/>

[cid:***@01CE76F7.B881D840]

[cid:***@01CE76F7.B881D840]



* --To unsubscribe from enterasys, send email to ***@unc.edu<mailto:***@unc.edu> with the body: unsubscribe enterasys ***@bell.de<mailto:***@bell.de>

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Kleber - SEREDE
2013-07-02 13:21:22 UTC
Permalink
Hi,

I'm wich order are you authenticating?

I ran b and c series in my site and first I try 802.1x then MAC authentication. In the reverse order it will show down everthing.


Regards

Kleber

Enviado via iPhone

Em 02/07/2013, às 08:44, "Patrick Printz" <***@qcc.mass.edu<mailto:***@qcc.mass.edu>> escreveu:

The DHCP server is on a different vlan and subnet I am guessing. Is the ip-helper set for the subnet the PC is trying to connect to? Have you tried running a wireshark to see what is happening with the DHCP packets?

We ran into something similar with Avaya VoIP phones. The phones were being very fickle about DHCP packets being relayed by the IP Helper. I ended up sticking a DHCP server on their subnet. However, with Windows, I have not seen any issues having systems on a subnet or vlan separate from that of the DHCP server.

Patrick Printz
Network Infrastructure

Quinsigamond Community College
670 West Boylston Street
Worcester, MA 01606-2092
w. 508-854-7517
c. 508-726-9529


"If a man is called a street sweeper, he should sweep streets even as Michelangelo painted, or Beethoven composed music, or Shakespeare wrote poetry. He should sweep streets so well that all the hosts of heaven and Earth will pause to say, Here lived a great street sweeper who did his job well."
~Martin Luther King, Jr.

From: Matthias Nees [mailto:***@bell.de]
Sent: Tuesday, July 02, 2013 7:06 AM
To: Enterasys Customer Mailing List
Subject: [enterasys] AW: Slow PXE and Windows Boot with active MAC Authentication

Hi,

we only using a policy that cotains VLAN information:
set policy profile 2 name "PCs" pvid-status enable pvid 4 cos-status enable cos 8 untagged-vlans 4

If I apply the same policy to that port without mac auth all working well.

Regards

Von: Patrick Printz [mailto:***@qcc.mass.edu]
Gesendet: Dienstag, 2. Juli 2013 12:55
An: Enterasys Customer Mailing List
Betreff: RE:[enterasys] Slow PXE and Windows Boot with active MAC Authentication

We use MAC auth and 802.1x on all of our edge ports. We are running G3’s on similar firmware. The end user devices do not experience any difference for us in the boot time with authentication on or off. When you disable MAC authentication, is the port wide open? What policy is applied to the port when authentication is on? Perhaps something being applied is causing the slowdown?

Patrick Printz
Network Infrastructure

Quinsigamond Community College
670 West Boylston Street
Worcester, MA 01606-2092
w. 508-854-7517
c. 508-726-9529


"If a man is called a street sweeper, he should sweep streets even as Michelangelo painted, or Beethoven composed music, or Shakespeare wrote poetry. He should sweep streets so well that all the hosts of heaven and Earth will pause to say, Here lived a great street sweeper who did his job well."
~Martin Luther King, Jr.

From: Matthias Nees [mailto:***@bell.de]
Sent: Tuesday, July 02, 2013 6:50 AM
To: Enterasys Customer Mailing List
Subject: [enterasys] Slow PXE and Windows Boot with active MAC Authentication

Hi All,

are there any problems with PXE and Windows Boot when MAC Authentication is active on a Enterasys SecureStack switches?
We uses B5 / C5 Edge Switches with recent Firmware (6.61.08). NAC Gateway is running with Version 4.3.

PXE and Windows boot takes nearly double of time when MAC Authentication is active compare to a port where only same policy is manually applied. The problem is that windows needs a lot of time to get an ip address (via DHCP) and set it active then – so users getting very slow login screens and sometimes error messages.

Troubleshooting shows us that RADIUS Server (NAC Gateway) response the correct Policy very fast. Policy is also applied to the port correctly. The station is also learned in the correct VLAN. It seems MAC authentication is working well. But if I disable MAC Auth boot process is normal. If I activate Authentication again it needs more time.


Anyone out there that has similar problems ?



Mit freundlichen Gruessen / Best Regards

Matthias Nees
Systemingenieur

BELL Computer-Netzwerke GmbH
Ohmstr. 6
76229 Karlsruhe
Deutschland
Tel.:

+49 (721) 6624993-65

Fax:

+49 (228) 42104 9065

E-Mail:

***@bell.de<mailto:***@bell.de>

Web:

www.bell.de<http://www.bell.de/>

<image001.jpg>

<image002.gif>



* --To unsubscribe from enterasys, send email to ***@unc.edu<mailto:***@unc.edu> with the body: unsubscribe enterasys ***@bell.de<mailto:***@bell.de>

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Patrick Printz
2013-07-02 15:46:39 UTC
Permalink
How are the phones learning which vlan to operate on? DHCP? LLDP? Manual entry?

We use DHCP to tell the phones which VLAN they should be on. It boots into our default VLAN and gets an IP address. It is told the proper VLAN, so it releases the IP address and talks on the new VLAN. It sounds like your phones are being forced by policy to the new vlan, but they are not doing it cleanly.

Patrick Printz
Network Infrastructure

Quinsigamond Community College
670 West Boylston Street
Worcester, MA 01606-2092
w. 508-854-7517
c. 508-726-9529


"If a man is called a street sweeper, he should sweep streets even as Michelangelo painted, or Beethoven composed music, or Shakespeare wrote poetry. He should sweep streets so well that all the hosts of heaven and Earth will pause to say, Here lived a great street sweeper who did his job well."
~Martin Luther King, Jr.

From: Matthias Nees [mailto:***@bell.de]
Sent: Tuesday, July 02, 2013 11:41 AM
To: Enterasys Customer Mailing List
Subject: AW: [enterasys] Slow PXE and Windows Boot with active MAC Authentication

We only use MAC Auth no 802.1x.

My Problem is that the end-system is learned in VLAN -1 (wrong) and VLAN -4 (correct)

s-lab(su)->show mac port ge.1.40

MAC Address FID Port Type
----------------- ---- ------------- --------
10-60-4B-85-C7-4C 1 ge.1.40 Learned
10-60-4B-85-C7-4C 4 ge.1.40 Learned
s-lab(su)->

if I add manually policy to that port - all working well:

s-lab(su)->show mac port ge.1.40

MAC Address FID Port Type
----------------- ---- ------------- --------
10-60-4B-85-C7-4C 4 ge.1.40 Learned
s-lab(su)->

How can I prevent that the system is learned in VLAN 1 ?

Regards

Von: Kleber - SEREDE [mailto:***@tjdft.jus.br]
Gesendet: Dienstag, 2. Juli 2013 15:21
An: Enterasys Customer Mailing List
Cc: Enterasys Customer Mailing List
Betreff: Re: [enterasys] Slow PXE and Windows Boot with active MAC Authentication

Hi,

I'm wich order are you authenticating?

I ran b and c series in my site and first I try 802.1x then MAC authentication. In the reverse order it will show down everthing.


Regards

Kleber

Enviado via iPhone

Em 02/07/2013, às 08:44, "Patrick Printz" <***@qcc.mass.edu<mailto:***@qcc.mass.edu>> escreveu:
The DHCP server is on a different vlan and subnet I am guessing. Is the ip-helper set for the subnet the PC is trying to connect to? Have you tried running a wireshark to see what is happening with the DHCP packets?

We ran into something similar with Avaya VoIP phones. The phones were being very fickle about DHCP packets being relayed by the IP Helper. I ended up sticking a DHCP server on their subnet. However, with Windows, I have not seen any issues having systems on a subnet or vlan separate from that of the DHCP server.

Patrick Printz
Network Infrastructure

Quinsigamond Community College
670 West Boylston Street
Worcester, MA 01606-2092
w. 508-854-7517
c. 508-726-9529


"If a man is called a street sweeper, he should sweep streets even as Michelangelo painted, or Beethoven composed music, or Shakespeare wrote poetry. He should sweep streets so well that all the hosts of heaven and Earth will pause to say, Here lived a great street sweeper who did his job well."
~Martin Luther King, Jr.

From: Matthias Nees [mailto:***@bell.de]
Sent: Tuesday, July 02, 2013 7:06 AM
To: Enterasys Customer Mailing List
Subject: [enterasys] AW: Slow PXE and Windows Boot with active MAC Authentication

Hi,

we only using a policy that cotains VLAN information:
set policy profile 2 name "PCs" pvid-status enable pvid 4 cos-status enable cos 8 untagged-vlans 4

If I apply the same policy to that port without mac auth all working well.

Regards

Von: Patrick Printz [mailto:***@qcc.mass.edu]
Gesendet: Dienstag, 2. Juli 2013 12:55
An: Enterasys Customer Mailing List
Betreff: RE:[enterasys] Slow PXE and Windows Boot with active MAC Authentication

We use MAC auth and 802.1x on all of our edge ports. We are running G3's on similar firmware. The end user devices do not experience any difference for us in the boot time with authentication on or off. When you disable MAC authentication, is the port wide open? What policy is applied to the port when authentication is on? Perhaps something being applied is causing the slowdown?

Patrick Printz
Network Infrastructure

Quinsigamond Community College
670 West Boylston Street
Worcester, MA 01606-2092
w. 508-854-7517
c. 508-726-9529


"If a man is called a street sweeper, he should sweep streets even as Michelangelo painted, or Beethoven composed music, or Shakespeare wrote poetry. He should sweep streets so well that all the hosts of heaven and Earth will pause to say, Here lived a great street sweeper who did his job well."
~Martin Luther King, Jr.

From: Matthias Nees [mailto:***@bell.de]
Sent: Tuesday, July 02, 2013 6:50 AM
To: Enterasys Customer Mailing List
Subject: [enterasys] Slow PXE and Windows Boot with active MAC Authentication

Hi All,

are there any problems with PXE and Windows Boot when MAC Authentication is active on a Enterasys SecureStack switches?
We uses B5 / C5 Edge Switches with recent Firmware (6.61.08). NAC Gateway is running with Version 4.3.

PXE and Windows boot takes nearly double of time when MAC Authentication is active compare to a port where only same policy is manually applied. The problem is that windows needs a lot of time to get an ip address (via DHCP) and set it active then - so users getting very slow login screens and sometimes error messages.

Troubleshooting shows us that RADIUS Server (NAC Gateway) response the correct Policy very fast. Policy is also applied to the port correctly. The station is also learned in the correct VLAN. It seems MAC authentication is working well. But if I disable MAC Auth boot process is normal. If I activate Authentication again it needs more time.


Anyone out there that has similar problems ?



Mit freundlichen Gruessen / Best Regards

Matthias Nees
Systemingenieur

BELL Computer-Netzwerke GmbH
Ohmstr. 6
76229 Karlsruhe
Deutschland
Tel.:

+49 (721) 6624993-65

Fax:

+49 (228) 42104 9065

E-Mail:

***@bell.de<mailto:***@bell.de>

Web:

www.bell.de<http://www.bell.de/>

<image001.jpg>

<image002.gif>



* --To unsubscribe from enterasys, send email to ***@unc.edu<mailto:***@unc.edu> with the body: unsubscribe enterasys ***@bell.de<mailto:***@bell.de>

* --To unsubscribe from enterasys, send email to ***@unc.edu<mailto:***@unc.edu> with the body: unsubscribe enterasys ***@tjdft.jus.br<mailto:***@tjdft.jus.br>

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Kaiser, Markus
2013-07-02 15:53:04 UTC
Permalink
Hi Matthias,

it might be normal that the MAC is learned on VLAN 1 first.
If you set the MAC agetime to 20 seconds, you will see that it disappears
from VLAN 1 after 20 seconds
and it only shows the MAC on VLAN 4 after that 20 seconds.

That is normal behavior, but communication is still working on VLAN 4
besides this.

Please can you send me the "show port egress" for that specific port.
Thanks.
Is maybe dynamicegress enabled for VLAN 1?

I will give you a call Matthias.

Kind regards,

Markus
We only use MAC Auth no 802.1x.****
** **
My Problem is that the end-system is learned in VLAN -1 (wrong) and VLAN
-4 (correct)****
** **
s-lab(su)->show mac port ge.1.40
MAC Address FID Port Type
----------------- ---- ------------- --------
10-60-4B-85-C7-4C 1 ge.1.40 Learned
10-60-4B-85-C7-4C 4 ge.1.40 Learned
s-lab(su)->****
** **
if I add manually policy to that port – all working well:****
** **
s-lab(su)->show mac port ge.1.40
MAC Address FID Port Type
----------------- ---- ------------- --------
10-60-4B-85-C7-4C 4 ge.1.40 Learned
s-lab(su)->****
** **
How can I prevent that the system is learned in VLAN 1 ?****
** **
Regards****
** **
*Gesendet:* Dienstag, 2. Juli 2013 15:21
*An:* Enterasys Customer Mailing List
*Cc:* Enterasys Customer Mailing List
*Betreff:* Re: [enterasys] Slow PXE and Windows Boot with active MAC
Authentication****
** **
Hi,****
** **
I'm wich order are you authenticating?****
** **
I ran b and c series in my site and first I try 802.1x then MAC
authentication. In the reverse order it will show down everthing.****
** **
** **
Regards****
** **
Kleber****
Enviado via iPhone****
****
The DHCP server is on a different vlan and subnet I am guessing. Is the
ip-helper set for the subnet the PC is trying to connect to? Have you
tried running a wireshark to see what is happening with the DHCP packets?
****
****
We ran into something similar with Avaya VoIP phones. The phones were
being very fickle about DHCP packets being relayed by the IP Helper. I
ended up sticking a DHCP server on their subnet. However, with Windows, I
have not seen any issues having systems on a subnet or vlan separate from
that of the DHCP server.****
****
*Patrick Printz*****
*Network Infrastructure*****
****
Quinsigamond Community College
670 West Boylston Street
Worcester, MA 01606-2092 ****
w. 508-854-7517****
c. 508-726-9529****
****
****
"If a man is called a street sweeper, he should sweep streets even as
poetry. He should sweep streets so well that all the hosts of heaven and
Earth will pause to say, Here lived a great street sweeper who did his job
well."****
~Martin Luther King, Jr. ****
****
*Sent:* Tuesday, July 02, 2013 7:06 AM
*To:* Enterasys Customer Mailing List
*Subject:* [enterasys] AW: Slow PXE and Windows Boot with active MAC
Authentication****
****
Hi,****
****
we only using a policy that cotains VLAN information:****
set policy profile 2 name "PCs" pvid-status enable pvid 4 cos-status
enable cos 8 untagged-vlans 4****
****
If I apply the same policy to that port without mac auth all working well.
****
****
Regards****
****
*Gesendet:* Dienstag, 2. Juli 2013 12:55
*An:* Enterasys Customer Mailing List
*Betreff:* RE:[enterasys] Slow PXE and Windows Boot with active MAC
Authentication****
****
We use MAC auth and 802.1x on all of our edge ports. We are running G3’s
on similar firmware. The end user devices do not experience any difference
for us in the boot time with authentication on or off. When you disable
MAC authentication, is the port wide open? What policy is applied to the
port when authentication is on? Perhaps something being applied is causing
the slowdown?****
****
*Patrick Printz*****
*Network Infrastructure*****
****
Quinsigamond Community College
670 West Boylston Street
Worcester, MA 01606-2092 ****
w. 508-854-7517****
c. 508-726-9529****
****
****
"If a man is called a street sweeper, he should sweep streets even as
poetry. He should sweep streets so well that all the hosts of heaven and
Earth will pause to say, Here lived a great street sweeper who did his job
well."****
~Martin Luther King, Jr. ****
****
*Sent:* Tuesday, July 02, 2013 6:50 AM
*To:* Enterasys Customer Mailing List
*Subject:* [enterasys] Slow PXE and Windows Boot with active MAC
Authentication****
****
Hi All,****
****
are there any problems with PXE and Windows Boot when MAC Authentication
is active on a Enterasys SecureStack switches? ****
We uses B5 / C5 Edge Switches with recent Firmware (6.61.08). NAC Gateway
is running with Version 4.3.****
****
PXE and Windows boot takes nearly double of time when MAC Authentication
is active compare to a port where only same policy is manually applied. The
problem is that windows needs a lot of time to get an ip address (via DHCP)
and set it active then – so users getting very slow login screens and
sometimes error messages.****
****
Troubleshooting shows us that RADIUS Server (NAC Gateway) response the
correct Policy very fast. Policy is also applied to the port correctly. The
station is also learned in the correct VLAN. It seems MAC authentication is
working well. But if I disable MAC Auth boot process is normal. If I
activate Authentication again it needs more time.****
****
****
Anyone out there that has similar problems ?****
****
****
****
Mit freundlichen Gruessen / Best Regards
*Matthias Nees *
Systemingenieur****
*BELL Computer-Netzwerke GmbH*
Ohmstr. 6
76229 Karlsruhe
Deutschland ****
Tel.:****
+49 (721) 6624993-65****
Fax:****
+49 (228) 42104 9065****
E-Mail:****
Web:****
www.bell.de****
<image001.jpg>****
<image002.gif>****
****
---
To unsubscribe from enterasys, send email to ***@unc.edu with the body: unsubscribe enterasys gneu-***@gmane.org
Francois Scheun
2013-07-02 16:15:01 UTC
Permalink
Hi Matthias



What is the VLAN mapping for pre-auth set to in the NAC profile? I had a
similar issue where the Tunnel-Private-Group ID attribute is set to vlan 1
(default setting). NAC returns vlan 1 as Tunnel-Private-Group ID
attribute if not specified differently.



Might be worth checking.



Francois Scheün

Duxbury Networking
Specialist Networking Distributor
tel: +27 (0) 11 351 9800
fax: +27 (0) 11 646 3079
email: ***@duxnet.co.za

web: www.duxbury.co.za <http://www.duxbury.co.za/>











From: Matthias Nees [mailto:***@bell.de]
Sent: Tuesday, July 02, 2013 5:41 PM
To: Enterasys Customer Mailing List
Subject: AW: [enterasys] Slow PXE and Windows Boot with active MAC
Authentication



We only use MAC Auth no 802.1x.



My Problem is that the end-system is learned in VLAN -1 (wrong) and VLAN
-4 (correct)



s-lab(su)->show mac port ge.1.40

MAC Address FID Port Type
----------------- ---- ------------- --------
10-60-4B-85-C7-4C 1 ge.1.40 Learned
10-60-4B-85-C7-4C 4 ge.1.40 Learned
s-lab(su)->



if I add manually policy to that port – all working well:



s-lab(su)->show mac port ge.1.40

MAC Address FID Port Type
----------------- ---- ------------- --------
10-60-4B-85-C7-4C 4 ge.1.40 Learned
s-lab(su)->



How can I prevent that the system is learned in VLAN 1 ?



Regards



Von: Kleber - SEREDE [mailto:***@tjdft.jus.br]
Gesendet: Dienstag, 2. Juli 2013 15:21
An: Enterasys Customer Mailing List
Cc: Enterasys Customer Mailing List
Betreff: Re: [enterasys] Slow PXE and Windows Boot with active MAC
Authentication



Hi,



I'm wich order are you authenticating?



I ran b and c series in my site and first I try 802.1x then MAC
authentication. In the reverse order it will show down everthing.





Regards



Kleber


Enviado via iPhone


Em 02/07/2013, às 08:44, "Patrick Printz" <***@qcc.mass.edu> escreveu:

The DHCP server is on a different vlan and subnet I am guessing. Is the
ip-helper set for the subnet the PC is trying to connect to? Have you
tried running a wireshark to see what is happening with the DHCP packets?



We ran into something similar with Avaya VoIP phones. The phones were
being very fickle about DHCP packets being relayed by the IP Helper. I
ended up sticking a DHCP server on their subnet. However, with Windows, I
have not seen any issues having systems on a subnet or vlan separate from
that of the DHCP server.



Patrick Printz

Network Infrastructure



Quinsigamond Community College
670 West Boylston Street
Worcester, MA 01606-2092

w. 508-854-7517

c. 508-726-9529





"If a man is called a street sweeper, he should sweep streets even as
Michelangelo painted, or Beethoven composed music, or Shakespeare wrote
poetry. He should sweep streets so well that all the hosts of heaven and
Earth will pause to say, Here lived a great street sweeper who did his job
well."

~Martin Luther King, Jr.



From: Matthias Nees [mailto:***@bell.de]
Sent: Tuesday, July 02, 2013 7:06 AM
To: Enterasys Customer Mailing List
Subject: [enterasys] AW: Slow PXE and Windows Boot with active MAC
Authentication



Hi,



we only using a policy that cotains VLAN information:

set policy profile 2 name "PCs" pvid-status enable pvid 4 cos-status
enable cos 8 untagged-vlans 4



If I apply the same policy to that port without mac auth all working well.



Regards



Von: Patrick Printz [mailto:***@qcc.mass.edu]
Gesendet: Dienstag, 2. Juli 2013 12:55
An: Enterasys Customer Mailing List
Betreff: RE:[enterasys] Slow PXE and Windows Boot with active MAC
Authentication



We use MAC auth and 802.1x on all of our edge ports. We are running G3’s
on similar firmware. The end user devices do not experience any difference
for us in the boot time with authentication on or off. When you disable
MAC authentication, is the port wide open? What policy is applied to the
port when authentication is on? Perhaps something being applied is causing
the slowdown?



Patrick Printz

Network Infrastructure



Quinsigamond Community College
670 West Boylston Street
Worcester, MA 01606-2092

w. 508-854-7517

c. 508-726-9529





"If a man is called a street sweeper, he should sweep streets even as
Michelangelo painted, or Beethoven composed music, or Shakespeare wrote
poetry. He should sweep streets so well that all the hosts of heaven and
Earth will pause to say, Here lived a great street sweeper who did his job
well."

~Martin Luther King, Jr.



From: Matthias Nees [mailto:***@bell.de]
Sent: Tuesday, July 02, 2013 6:50 AM
To: Enterasys Customer Mailing List
Subject: [enterasys] Slow PXE and Windows Boot with active MAC
Authentication



Hi All,



are there any problems with PXE and Windows Boot when MAC Authentication
is active on a Enterasys SecureStack switches?

We uses B5 / C5 Edge Switches with recent Firmware (6.61.08). NAC Gateway
is running with Version 4.3.



PXE and Windows boot takes nearly double of time when MAC Authentication
is active compare to a port where only same policy is manually applied.
The problem is that windows needs a lot of time to get an ip address (via
DHCP) and set it active then – so users getting very slow login screens
and sometimes error messages.



Troubleshooting shows us that RADIUS Server (NAC Gateway) response the
correct Policy very fast. Policy is also applied to the port correctly.
The station is also learned in the correct VLAN. It seems MAC
authentication is working well. But if I disable MAC Auth boot process is
normal. If I activate Authentication again it needs more time.





Anyone out there that has similar problems ?








Mit freundlichen Gruessen / Best Regards

Matthias Nees
Systemingenieur


BELL Computer-Netzwerke GmbH
Ohmstr. 6
76229 Karlsruhe
Deutschland


Tel.:

+49 (721) 6624993-65


Fax:

+49 (228) 42104 9065


E-Mail:

***@bell.de


Web:

www.bell.de <http://www.bell.de/>

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