LAN server not resolving client IP address

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astina6

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#50135 23-Nov-2009 18:37

Have a home LAN with a couple of Win XP's and a linux mail server. Recently added a desktop which for some reason cannot have its IP address resolved by the server. All clients have static ip addresses(192.168.0.50-56) but the desktop has exactly same configurations as other clients but always has my EXTERNAL IP address resolved whenever logging on for mail.
postfix/smtpd[9433]: Anonymous TLS connection established from unknown[121.xx.xxx.xx]: TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)
Nov 23 17:53:21 mail postfix/smtpd[9433]: 0D70D62B: client=unknown[121.xx.xxx.xx], sasl_method=PLAIN, sasl_username=xxx

while other clients will have ip addresses resolved as per normal.

Using a Linksys wmp54G pci wireless card and router is a 3com 3CRWDR101A

My server firewall is fine and win xp has all the same settings

Anyone has an idea??

wazzageek

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#275629 23-Nov-2009 21:21

What is the output of "ipconfig /all" and "route print" from the desktop with problems?

astina6

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#275941 24-Nov-2009 19:47

Sorry for the delay ipconfig /all is

Windows IP Configuration

Host Name . . . . . . . . . . . . : desk
Primary Dns Suffix . . . . . . . : example.gen.nz
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : example.gen.nz

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : Realtek RTL8168C(P)/8111C(P) Family PCI-E GBE NIC
Physical Address. . . . . . . . . : 00-24-1D-54-63-09

Ethernet adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Linksys Wireless-G PCI Adapter
Physical Address. . . . . . . . . : 00-23-69-DD-17-67
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.0.54
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.1
DNS Servers . . . . . . . . . . . : 210.55.12.1
210.55.12.2

and route print is:
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 24 1d 54 63 09 ...... Realtek RTL8168C(P)/8111C(P) Family PCI-E GBE NIC - Packet Scheduler
Miniport
0x3 ...00 23 69 dd 17 67 ...... Linksys Wireless-G PCI Adapter - Packet Scheduler Miniport
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.0.1 192.168.0.54 25
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.0.0 255.255.255.0 192.168.0.54 192.168.0.54 25
192.168.0.54 255.255.255.255 127.0.0.1 127.0.0.1 25
192.168.0.255 255.255.255.255 192.168.0.54 192.168.0.54 25
224.0.0.0 240.0.0.0 192.168.0.54 192.168.0.54 25
255.255.255.255 255.255.255.255 192.168.0.54 2 1
255.255.255.255 255.255.255.255 192.168.0.54 192.168.0.54 1
Default Gateway: 192.168.0.1
===========================================================================
Persistent Routes:
None

wazzageek

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#275953 24-Nov-2009 20:43

All looks OK - nothing seems to be out of place there.

Are you still seeing the same problem where the external IP address is reported in the log files?

astina6

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#275954 24-Nov-2009 20:55

Yes unfortunately funny as it has same settings, apart from LAN ip as my laptop which resolves as should. The only difference is wireless cards. Stopped using linksys network manager and gone back to Windoze to see if that helps but so far not helping..
Let the fun begin....

nitrotech

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#275955 24-Nov-2009 21:00

Try adding the FQDN to ip address in the hosts file on the xp machine and see if that helps

http://kickenhardware.net/forum/showthread.php?t=3006

astina6

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#275964 24-Nov-2009 21:23

LAUGHING OUT LOUD!!!!!!

Ammending hosts file with client & server IP address solves everything!!!

All logging as expected!! Learn something everyday

Mighty Ape

Shop now at Mighty Ape (affiliate link).

astina6

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#275966 24-Nov-2009 21:24

Sorry,
Thanks wazzageek, and nitrotech for your help Tonight's beer is on me!