Topic: Can Ping IP, but not machine name

[Dan Williams]

Hi,
From E-smith, 5.1.2 I can ping www.yahoo.com and get a reply, or ping yahoo's IP, and get a reply.
I can also ping internal PC's such as 10.58.48.10 however, I can not ping the internal PC's name D731519001 which owns the 10.58.48.10 IP.
As well, on PC;s that are using E-smith as the gateway to the web, they can not ping www.yahoo.com, howver, they can ping yahoo.com IP.
Any assistance greatly appreciated.
Dan

[Nathan Fowler]

I don't think you can ping NetBIOS names from the E-Smith box.  I don't believe E-Smith supports NetBIOS.  I could be wrong.

On your clients, make sure their default gateway and dns servers are set to the IP address of your E-Smith box.

Hope this helped,
Nathan

[Dan Williams]

Hi Nathan,
Still can't get it,
The DNS Server on the client, as well as the gateway on the client is set to the Mitel, the client can surf the web etc, however can not ping any www.site, but can ping IP's.
Dan

[Abe Loveless]

To ping NetBIOS names, I think you'll probably have to add those names to the Hostnames & Addresses list and direct them to the appropriate internal IP's.

The other problems, sure sound like a DNS issue to me.  Probably on the client end... somewhere, if the SME server can get out correctly.

[chris meredith]

From the client, try doing an nslookup or dig and make sure they are able to connect to the DNS server on the Mitel box.  Make sure the DNS server on the Mitel box is running, and that it is forwarding requests on.  

The Mitel box could be blocking DNS requests from the LAN as well, it shouldn't, but a bad ipchain rule could be in there.

Also, check what DNS servers the Mitel box is pulling from your ISP.  You can add them into the DHCP scope, or manually assign them on the clients.  Since they Mitel box is able to resolve names that should work.

As for Netbios names, you could manually put entries into DNS so all machines can resolve each other using DNS.  If you just have one subnet, then you should be able to resolve by broadcast, but it will take a few minutes after a machine comes up for the name to be findable.  

If you do a lot of local name resolution you may want to set up a WINS server with samba or a NT/2k box.  If you are running 2k/XP clients and you setup a 2k DNS server you also can have all the clients register their own DNS automatically.

[Dan Williams]

Hi Chris,
I am beat on this,
From the console on the E-Smith I can Ping, and NSLOOKUP, no problems.
On an NT Server, I have the E-Smith box set as it's default gateway, and DNS server. If I open a command prompt on that NT Box (any PC actually) and do an NSLOOKUP the DNS requests just timeout. In the Internet Explorer on these PC's we have the Proxy set to 10.58.48.200 / 3128 whch is the Mitel, and the browsing works. I can clearly see we have no DNS getting to the PC's but do not know what to look for, or where, in order to fix it.

[Nathan Fowler]

On your NT box run:

ipconfig -all > c:\ip.txt

Then paste on this forum the contents of c:\ip.txt please.

Thanks,
Nathan

[Dan Williams]

This is from the NT Box
Windows NT IP Configuration



   Host Name . . . . . . . . . : d731519001.D731519
   DNS Servers . . . . . . . . : 10.58.48.200
   Node Type . . . . . . . . . : Hybrid

   NetBIOS Scope ID. . . . . . :

   IP Routing Enabled. . . . . : Yes

   WINS Proxy Enabled. . . . . : No

   NetBIOS Resolution Uses DNS : No


Ethernet adapter SMC12442:



   Description . . . . . . . . : SMC EZ Card 10/100 (SMC1244TX)

   Physical Address. . . . . . : 00-50-BF-72-64-6F

   DHCP Enabled. . . . . . . . : Yes

   IP Address. . . . . . . . . : 0.0.0.0

   Subnet Mask . . . . . . . . : 0.0.0.0

   Default Gateway . . . . . . :

   DHCP Server . . . . . . . . : 255.255.255.255


Ethernet adapter SMC12441:



   Description . . . . . . . . : SMC EZ Card 10/100 (SMC1244TX)

   Physical Address. . . . . . : 00-50-BF-72-4D-2D

   DHCP Enabled. . . . . . . . : No

   IP Address. . . . . . . . . : 10.58.48.10

   Subnet Mask . . . . . . . . : 255.255.255.0

   Default Gateway . . . . . . : 10.58.48.200

   Primary WINS Server . . . . : 10.58.48.10


This is from a Win98PC
Windows 98 IP Configuration



   Host Name . . . . . . . . . : schlage.D731519

   DNS Servers . . . . . . . . : 10.58.48.200

   Node Type . . . . . . . . . : Broadcast

   NetBIOS Scope ID. . . . . . :

   IP Routing Enabled. . . . . : No

   WINS Proxy Enabled. . . . . : No

   NetBIOS Resolution Uses DNS : Yes



0 Ethernet adapter :



   Description . . . . . . . . : PPP Adapter.

   Physical Address. . . . . . : 44-45-53-54-00-00

   DHCP Enabled. . . . . . . . : Yes

   IP Address. . . . . . . . . : 0.0.0.0

   Subnet Mask . . . . . . . . : 0.0.0.0

   Default Gateway . . . . . . :

   DHCP Server . . . . . . . . : 255.255.255.255

   Primary WINS Server . . . . :

   Secondary WINS Server . . . :

   Lease Obtained. . . . . . . :

   Lease Expires . . . . . . . :



1 Ethernet adapter :



   Description . . . . . . . . : 3Com EtherLink PCI

   Physical Address. . . . . . : 00-10-5A-1F-8F-F2

   DHCP Enabled. . . . . . . . : Yes

   IP Address. . . . . . . . . : 10.58.48.65

   Subnet Mask . . . . . . . . : 255.255.255.0

   Default Gateway . . . . . . : 10.58.48.200

   DHCP Server . . . . . . . . : 10.58.48.200

   Primary WINS Server . . . . :

   Secondary WINS Server . . . :

   Lease Obtained. . . . . . . : 06 25 02 11:44:26 PM

   Lease Expires . . . . . . . : 06 26 02 11:44:26 PM

[Nathan Fowler]

The only think I can think of is perhaps the invalid Host Name setting is causing the problems.

Host Name . . . . . . . . . : d731519001.D731519

Also, why does that NT box have IP Routing enabled?

[Dan Williams]

Hi Nathan,
But what about the '98 Box? It to, has the same problems?
Dan

[Nathan Fowler]

Yeah, it is configured to use the same host name.  To be honest this is a stab in the dark, your configuration as far as DNS server and Default Gateway/IP look correct.  You would think if they can surf, they can resolve the host name (obviously).  So I'm not sure why you can't ping from the command prompt on those Windows machines unless it's the invalid hostname.  I would change it on one box and see if it has any effect.

Nathan