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DNS Issues persist, internet is very slow and unable to complete basic monitoring tests
Increasingly concerned at our current internal network setup
We have a server with 2 NIC, one public , one private public is connected to BT Business HUB
Default gateway is set on the public , and left blank on private. The private IP is 192.168.1.1
Server is running Windows Server 2008 and has AD / DNS Server / DHCP
I cannot ping domain.com from any client machine including server, internet is incrediably slow on client machines, and within the DNS Server tools it FAILS on both a simple and recursive dns test.
The ping tests do resolve the domain.com to an IP before attempting to contact but thats it. A tracert to say bt.com will take a very long time on the first two hops and then is fine after that
We have a server with 2 NIC, one public , one private public is connected to BT Business HUB
Default gateway is set on the public , and left blank on private. The private IP is 192.168.1.1
Server is running Windows Server 2008 and has AD / DNS Server / DHCP
I cannot ping domain.com from any client machine including server, internet is incrediably slow on client machines, and within the DNS Server tools it FAILS on both a simple and recursive dns test.
The ping tests do resolve the domain.com to an IP before attempting to contact but thats it. A tracert to say bt.com will take a very long time on the first two hops and then is fine after that
Last Comment
ASKER
Yes 192.168.1.0/24,
Yes can ping internally,
External NIC has static IP with gateway set to router
Internal NIC has static IP with no gateway and DNS server set to itself (192.168.1.1)
Using PING now on the server to google.com resolves into an IP , the the first packet send fails stating
192.168.1.1 : Destination host unreachable
Then the next 3 packets do a succesful ping BUT with a huge MS delay of around 160ms
Yes can ping internally,
External NIC has static IP with gateway set to router
Internal NIC has static IP with no gateway and DNS server set to itself (192.168.1.1)
Using PING now on the server to google.com resolves into an IP , the the first packet send fails stating
192.168.1.1 : Destination host unreachable
Then the next 3 packets do a succesful ping BUT with a huge MS delay of around 160ms
Can you post the results of "ipconfig /all" and "route print" commands?
ASKER
==========================
Interface List
13 ...00 1e 4f 40 0f e9 ...... Broadcom BCM5708C NetXtreme II GigE (NDIS VBD Client) #2
12 ...00 1e 4f 40 0f e7 ...... Broadcom BCM5708C NetXtreme II GigE (NDIS VBD Client)
1 ..........................
14 ...00 00 00 00 00 00 00 e0 isatap.{69365214-AC89-43FE
10 ...02 00 54 55 4e 01 ...... Teredo Tunneling Pseudo-Interface
16 ...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
17 ...00 00 00 00 00 00 00 e0 Microsoft 6to4 Adapter
15 ...00 00 00 00 00 00 00 e0 isatap.{D151DE32-EAE7-4EEA
==========================
IPv4 Route Table
==========================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 On-link 192.168.1.1 266
0.0.0.0 0.0.0.0 217.37.149.238 217.37.149.235 276
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.1.0 255.255.255.0 On-link 192.168.1.1 266
192.168.1.1 255.255.255.255 On-link 192.168.1.1 266
192.168.1.255 255.255.255.255 On-link 192.168.1.1 266
217.37.149.0 255.255.255.0 On-link 217.37.149.235 276
217.37.149.235 255.255.255.255 On-link 217.37.149.235 276
217.37.149.255 255.255.255.255 On-link 217.37.149.235 276
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.1.1 266
224.0.0.0 240.0.0.0 On-link 217.37.149.235 276
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.1.1 266
255.255.255.255 255.255.255.255 On-link 217.37.149.235 276
==========================
Persistent Routes:
Network Address Netmask Gateway Address Metric
0.0.0.0 0.0.0.0 217.37.149.238 Default
0.0.0.0 0.0.0.0 192.168.1.1 Default
0.0.0.0 0.0.0.0 217.37.149.238 Default
==========================
IPv6 Route Table
==========================
Active Routes:
If Metric Network Destination Gateway
17 1125 ::/0 2002:c058:6301::c058:6301
1 306 ::1/128 On-link
17 1025 2002::/16 On-link
17 281 2002:d925:95eb::d925:95eb/
On-link
1 306 ff00::/8 On-link
==========================
Persistent Routes:
None
Interface List
13 ...00 1e 4f 40 0f e9 ...... Broadcom BCM5708C NetXtreme II GigE (NDIS VBD Client) #2
12 ...00 1e 4f 40 0f e7 ...... Broadcom BCM5708C NetXtreme II GigE (NDIS VBD Client)
1 ..........................
14 ...00 00 00 00 00 00 00 e0 isatap.{69365214-AC89-43FE
10 ...02 00 54 55 4e 01 ...... Teredo Tunneling Pseudo-Interface
16 ...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
17 ...00 00 00 00 00 00 00 e0 Microsoft 6to4 Adapter
15 ...00 00 00 00 00 00 00 e0 isatap.{D151DE32-EAE7-4EEA
==========================
IPv4 Route Table
==========================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 On-link 192.168.1.1 266
0.0.0.0 0.0.0.0 217.37.149.238 217.37.149.235 276
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.1.0 255.255.255.0 On-link 192.168.1.1 266
192.168.1.1 255.255.255.255 On-link 192.168.1.1 266
192.168.1.255 255.255.255.255 On-link 192.168.1.1 266
217.37.149.0 255.255.255.0 On-link 217.37.149.235 276
217.37.149.235 255.255.255.255 On-link 217.37.149.235 276
217.37.149.255 255.255.255.255 On-link 217.37.149.235 276
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.1.1 266
224.0.0.0 240.0.0.0 On-link 217.37.149.235 276
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.1.1 266
255.255.255.255 255.255.255.255 On-link 217.37.149.235 276
==========================
Persistent Routes:
Network Address Netmask Gateway Address Metric
0.0.0.0 0.0.0.0 217.37.149.238 Default
0.0.0.0 0.0.0.0 192.168.1.1 Default
0.0.0.0 0.0.0.0 217.37.149.238 Default
==========================
IPv6 Route Table
==========================
Active Routes:
If Metric Network Destination Gateway
17 1125 ::/0 2002:c058:6301::c058:6301
1 306 ::1/128 On-link
17 1025 2002::/16 On-link
17 281 2002:d925:95eb::d925:95eb/
On-link
1 306 ff00::/8 On-link
==========================
Persistent Routes:
None
ASKER
Windows IP Configuration
Host Name . . . . . . . . . . . . : NETSERVER
Primary Dns Suffix . . . . . . . : nettex.local
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : nettex.local
Ethernet adapter WAN_EXTERNAL2:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom BCM5708C NetXtreme II GigE (NDIS VBD Client) #2
Physical Address. . . . . . . . . : 00-1E-4F-40-0F-E9
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 217.37.149.235(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 217.37.149.238
DNS Servers . . . . . . . . . . . : 194.72.9.38
194.74.63.68
NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter LAN_INTERNAL:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom BCM5708C NetXtreme II GigE (NDIS VBD Client)
Physical Address. . . . . . . . . : 00-1E-4F-40-0F-E7
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 192.168.1.1(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 0.0.0.0
DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled
Tunnel adapter Local Area Connection* 8:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{69365214-AC89-43FE
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 9:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 11:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 12:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2002:d925:95eb::d925:95eb(
Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301
DNS Servers . . . . . . . . . . . : 194.72.9.38
194.74.63.68
NetBIOS over Tcpip. . . . . . . . : Disabled
Tunnel adapter Local Area Connection* 13:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{D151DE32-EAE7-4EEA
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Host Name . . . . . . . . . . . . : NETSERVER
Primary Dns Suffix . . . . . . . : nettex.local
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : nettex.local
Ethernet adapter WAN_EXTERNAL2:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom BCM5708C NetXtreme II GigE (NDIS VBD Client) #2
Physical Address. . . . . . . . . : 00-1E-4F-40-0F-E9
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 217.37.149.235(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 217.37.149.238
DNS Servers . . . . . . . . . . . : 194.72.9.38
194.74.63.68
NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter LAN_INTERNAL:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom BCM5708C NetXtreme II GigE (NDIS VBD Client)
Physical Address. . . . . . . . . : 00-1E-4F-40-0F-E7
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 192.168.1.1(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 0.0.0.0
DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled
Tunnel adapter Local Area Connection* 8:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{69365214-AC89-43FE
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 9:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 11:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 12:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2002:d925:95eb::d925:95eb(
Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301
DNS Servers . . . . . . . . . . . : 194.72.9.38
194.74.63.68
NetBIOS over Tcpip. . . . . . . . : Disabled
Tunnel adapter Local Area Connection* 13:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{D151DE32-EAE7-4EEA
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
ASKER
See above, many thanks for your continued help
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Apologize for the typos again, use "route delete" instead of "route del"... I got mixed up on the *NIX syntax!
ASKER
Thank you sadburger, an excellent solution , and one I did not see , ping now works as expected and after reboot internet is better. Thank you again for your time in assisting me
DNS
The Domain Name System (DNS) is a hierarchical, globally distributed system responsible for associating the name of a computer, service or other resource into an IP address for connecting to the Internet or a private network. Most prominently, it translates domain names to the numerical IP addresses needed for the purpose of computer services and devices worldwide.
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How is your external NIC configured? Is it using a direct STATIC IP? Why is there no gateway configured on the external NIC (how are you expecting traffic to go out that NIC with no gateway?)
Do you have DNS forwarders configured?