WDS – PXE Boot Error TFTP Timeout

KB ID 0000485 

Problem

Seen when using WDS on Windows Server 2008 (and 2008 R2). When attempting to PXE boot a client machine, it sucessfully gets an IP address. But it times out at the TFTP stage.

This is a common occurance if the WDS server is also a DNS server. It happens on machines that have had the MS08-037 security update installed. Basically the ports that WDS needs are being reserved for DNS.

Solution

1. On the WDS server > Start > in the search/run box type regedit {enter}.

2. Navigate to:

[box]HKEY_LOCAL_MACHINESystemCurrentControlSetServicesWDSServerParameters[/box]

3. In the right hand window locate the UdpPortPolicy value and change it from 1 to 0 (Zero).

4. Then run services.msc > Locate the “Windows Deloyment Server Service” > Right Click > Restart.

Related Articles, References, Credits, or External Links

NA

ASA – Memory Error (Post upgrade to version 8.3)

KB ID 0000553 

Problem

I’ve split this article away from this one, as it tripped me up this week again, so I think it deserves an article of its own.

Some ASA firewalls that shipped prior to February 2010 may need a hardware memory upgrade, before you can update them to version 8.3 and beyond. If not you will see the following;

Memory Error as seen on an ASA5510

[box]

*************************************************************
**
** *** WARNING *** WARNING *** WARNING *** WARNING ***
**
** ----> Minimum Memory Requirements NOT Met! <---- **
**
** Installed RAM: 256 MB **
** Required RAM: 1024 MB **
** Upgrade part#: ASA5510-MEM-1GB= **
** **
** This ASA does not meet the minimum memory requirements needed to **
** run this image. Please install additional memory (part number **
** listed above) or downgrade to ASA version 8.2 or earlier. **
** Continuing to run without a memory upgrade is unsupported, and **
** critical system features will not function properly. **
** **
**************************************************************

[/box]

Memory Error as seen on an ASA5505

[box]

**************************************************************
** **
** *** WARNING *** WARNING *** WARNING *** WARNING ***
** **
** ----> Minimum Memory Requirements NOT Met! <---- **
** **
** Installed RAM: 256 MB **
** Required RAM: 512 MB **
** Upgrade part#: ASA5505-MEM-512= **
** **
** This ASA does not meet the minimum memory requirements needed to **
** run this image. Please install additional memory (part number **
** listed above) or downgrade to ASA version 8.2 or earlier. **
** Continuing to run without a memory upgrade is unsupported, and **
** critical system features will not function properly. **
** **
***************************************************************

[/box]

ASDM Memory Error as seen on an ASA5505

Solution

ASA Memory Requirements

ASA 5500 Memory Requirements for version 8.3 and Later
Cisco ASA

Mem
(Pre 8.3)

Mem
(Post 8.3)
New ASA
(after Feb 2010) shipped with
Memory Part Number
5505 10 User
256MB
256MB
512MB
 
5505 50 User
256MB
256MB
512MB
 
5505 Unlimited
256MB
512MB
512MB
ASA5505-MEM-512=
5505 Sec Plus
256MB
512MB
512MB
ASA5505-MEM-512=
5510
256MB
1GB
1GB
ASA5510-MEM-1GB=
5510 Sec Plus
256MB
1GB
1GB
ASA5510-MEM-1GB=
5520
512MB
2GB
2GB
ASA5520-MEM-2GB=
5540
1GB
2GB
2GB
ASA5540-MEM-2GB=
5550
4GB
4GB
4GB
 
5580-20
8GB
8GB
8GB
 
5580-40
12GB
12GB
12GB
 

Fitting the Memory Upgrade to an ASA5505

Fitting the Memory Upgrade to an ASA5510

Related Articles, References, Credits, or External Links

Cisco ASA5500 Update System and ASDM (From ASDM)

Cisco ASA5500 Update System and ASDM (From CLI)

Cisco PIX/ASA 8.3 Command Changes {NAT / Global / Access-List}