How to keep the internal interface operational?

G

Guest

Our gateway is a W2000 Server with two nic's, one for intranet, the other
internet. Routing and Remote Access is installed and NAT is activated.
I have noticed in the Routing and remote access Console - IP Routing -
General - the Operational Status of the Internal Interface is
Non-operational.

At the moment we have a problem with downloading files through FTP
(uploading is OK). Sometimes (I don't know how and why) the Internal
interface become Operational and downloading is OK. Does anybody know what
triggers this and how to keep this interface operational?
 
R

Robert L [MS-MVP]

You may have a configuration issue. Posting the result of ipconfig /all and routing table may help.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
Our gateway is a W2000 Server with two nic's, one for intranet, the other
internet. Routing and Remote Access is installed and NAT is activated.
I have noticed in the Routing and remote access Console - IP Routing -
General - the Operational Status of the Internal Interface is
Non-operational.

At the moment we have a problem with downloading files through FTP
(uploading is OK). Sometimes (I don't know how and why) the Internal
interface become Operational and downloading is OK. Does anybody know what
triggers this and how to keep this interface operational?
 
G

Guest

OK Robert, here are the results:

ipconfig /all:

Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : KERN
Primary DNS Suffix . . . . . . . : BioMat.lan
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : BioMat.lan

Ethernet adapter Extern:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 3Com EtherLink XL 10/100 PCI TX NIC
(3C905B-TX)
Physical Address. . . . . . . . . : 00-50-DA-40-FF-5D
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 82.175.75.165
Subnet Mask . . . . . . . . . . . : 255.255.255.248
Default Gateway . . . . . . . . . : 82.175.75.161
DNS Servers . . . . . . . . . . . : 127.0.0.1

Ethernet adapter Intern:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 3Com EtherLink XL 10/100 PCI For
Complete PC Management NIC (3C905C-TX)
Physical Address. . . . . . . . . : 00-50-DA-26-A7-7E
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.15.32
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 127.0.0.1

Route:

===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 50 da 26 a7 7e ...... 3Com EtherLink PCI
0x3 ...00 50 da 40 ff 5d ...... 3Com EtherLink PCI
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 82.175.75.161 82.175.75.165 1
82.175.75.160 255.255.255.248 82.175.75.165 82.175.75.165 1
82.175.75.165 255.255.255.255 127.0.0.1 127.0.0.1 1
82.255.255.255 255.255.255.255 82.175.75.165 82.175.75.165 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.15.0 255.255.255.0 192.168.15.32 192.168.15.32 1
192.168.15.32 255.255.255.255 127.0.0.1 127.0.0.1 1
192.168.15.255 255.255.255.255 192.168.15.32 192.168.15.32 1
224.0.0.0 224.0.0.0 82.175.75.165 82.175.75.165 1
224.0.0.0 224.0.0.0 192.168.15.32 192.168.15.32 1
255.255.255.255 255.255.255.255 192.168.15.32 192.168.15.32 1
Default Gateway: 82.175.75.161
===========================================================================
Persistent Routes:
None
 
R

Robert L [MS-MVP]

Both NICs should point the DNS to internal DNS and you should not use 127.0.0.1 as DNS IP. this troubleshooting tips may help,

Troubleshooting DNS Common DNS settings mistakes. 1.The domain controller is not pointing to itself for DNS resolution on all network interfaces. Especially, when you have ...
www.chicagotech.net/dnstroubleshooting.htm


Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
OK Robert, here are the results:

ipconfig /all:

Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : KERN
Primary DNS Suffix . . . . . . . : BioMat.lan
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : BioMat.lan

Ethernet adapter Extern:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 3Com EtherLink XL 10/100 PCI TX NIC
(3C905B-TX)
Physical Address. . . . . . . . . : 00-50-DA-40-FF-5D
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 82.175.75.165
Subnet Mask . . . . . . . . . . . : 255.255.255.248
Default Gateway . . . . . . . . . : 82.175.75.161
DNS Servers . . . . . . . . . . . : 127.0.0.1

Ethernet adapter Intern:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 3Com EtherLink XL 10/100 PCI For
Complete PC Management NIC (3C905C-TX)
Physical Address. . . . . . . . . : 00-50-DA-26-A7-7E
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.15.32
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 127.0.0.1

Route:

===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 50 da 26 a7 7e ...... 3Com EtherLink PCI
0x3 ...00 50 da 40 ff 5d ...... 3Com EtherLink PCI
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 82.175.75.161 82.175.75.165 1
82.175.75.160 255.255.255.248 82.175.75.165 82.175.75.165 1
82.175.75.165 255.255.255.255 127.0.0.1 127.0.0.1 1
82.255.255.255 255.255.255.255 82.175.75.165 82.175.75.165 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.15.0 255.255.255.0 192.168.15.32 192.168.15.32 1
192.168.15.32 255.255.255.255 127.0.0.1 127.0.0.1 1
192.168.15.255 255.255.255.255 192.168.15.32 192.168.15.32 1
224.0.0.0 224.0.0.0 82.175.75.165 82.175.75.165 1
224.0.0.0 224.0.0.0 192.168.15.32 192.168.15.32 1
255.255.255.255 255.255.255.255 192.168.15.32 192.168.15.32 1
Default Gateway: 82.175.75.161
===========================================================================
Persistent Routes:
None
 

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