Where are computers using 'net view' ?

[Grant]

We have 2 subnets:

192.168.1.*
192.168.200.*

When I do a net view I can only see computers from the 192.168.1.* subnet.

I am on the 200 subnet and can ping any machine on the network and connect
to there file shares and stuff but when I browse the network I dont see the
200 subnet....

Can anyone tell me why half my machines are hidden?

Thanks,
Grant

 

[Daniel]

We have 2 subnets:

192.168.1.*
192.168.200.*

When I do a net view I can only see computers from the 192.168.1.* subnet.

I am on the 200 subnet and can ping any machine on the network and connect
to there file shares and stuff but when I browse the network I dont see the
200 subnet....

Can anyone tell me why half my machines are hidden?

Thanks,
Grant

doesn't net view use a broadcast? A broadcast does not normally
traverse a router.

 

[Grant]

Wierd thing is I am on the .200 subnet which means I shouldnt see the .1
subnet ....

The server has two network cards configured for the same subnet (.200)-
would that cause a problem?

 

[Gary D]

Are you using WINS ?

Wierd thing is I am on the .200 subnet which means I shouldnt see the .1
subnet ....

The server has two network cards configured for the same subnet (.200)-
would that cause a problem?

 

[Phillip Windell]

Half aren't using a WINS Server and half are.

 

[Grant]

Yes I am using Wins. When I search all records in the WINS database all
machines are found. Sould I get rid of WINS?

Looking through the event logs shows that theres also a browser war going on
between machines. Im getting 2 types of errors in the event log repeatedly:

-----------------
Event ID: 8021
The browser service was unable to retrieve a list of servers from the
browser master \\machinename on the network
\Device\NetBT_Tcpip_{17C84128-D36D-4981-9974-2616A07EE8AE}.

 

[Jetro]

Lost .200 view may be caused by initial "Duplicate name exist" error and its
resolution.

 

[Grant]

I moved DHCP to a new server and one of the client machines got a duplicate
IP address error message yesterday. Is that what you mean? Is there a way
to clear this error database and start again?

 

[Phillip Windell]

Just do a "release/renew" on the machine. It will not be a lasting problem.
Don't mess with anything.

 

[Mark P]

DHCP servers are supposed to check to see if an ip address is on the
network. if it doesn't find it then it will pass out that il address.

One thing that i did before moving DHCP was to set the exporation for a DHPC
ip was down to about 15 min. That way the computer would request a new ip
address sooner rather than later. Standard time out is 1 day i think not
sure. I have mine set to 8 because of the amount of guest that come in and
out of the office. It allows for IPs not to be taken up all day long if we
run out.

As far as your Browser war is conserned -- i have that problem also because
of subnetting. I'm running about 50 different subnet through Cisco routers.
and 4 states. If i use ip helper address through the routers to pass out
DHPC to those locations on there subnet (my DHCP scope is huge BTW) and
don't cut off other ports on the router .. everything would be at war
because a computer on each subnet will want a master browers for there
subnet. Windows 98 computers will also cause Browser issues. They don't
understand windows 2000 and above.

If you are not running a router between your subnets then you should make
your DHCP and Master DC servers 255.0.0.0 class A or even a class B
255.255.0.0 sub net. The server will see both subnets.. and just give the
server 2 different ip address.. i.e. 192.168.1.1 and 192.168.200.1 DHCP
server can be 192.168.1.2 and 192.168.200.2. i only have 1 ip and a class A
subnet on my corp lan the servers have no issues seeing all comuters across
the WAN.

One other thing to note is that if you wish to no tmake your servers have 2
IPs / class AorB subnet / 2 subnets. Then you need a router on your network
behind the firewall that will route that traffic to different computers.

if you want all computers to see all computers then subnet for all should be
255.255.0.0 for a 192.168.xxx.xxx network... all computers from 192.168.1.1
to 192.168.254.254 (192.168.255.255 is a broad cast) that should also fix
the problem because they are all part of the same subnet.

Just do a "release/renew" on the machine. It will not be a lasting problem.
Don't mess with anything.

--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

I moved DHCP to a new server and one of the client machines got a duplicate
IP address error message yesterday. Is that what you mean? Is there a way
to clear this error database and start again?

 

[Michael Giorgio - MS MVP]

As far as your Browser war is conserned -- i have that problem also because
of subnetting. I'm running about 50 different subnet through Cisco routers.
and 4 states. If i use ip helper address through the routers to pass out
DHPC to those locations on there subnet (my DHCP scope is huge BTW) and
don't cut off other ports on the router .. everything would be at war
because a computer on each subnet will want a master browers for there
subnet. Windows 98 computers will also cause Browser issues. They don't
understand windows 2000 and above.

A computer on each subnet must have a master browser in order
for browsing to occur. It's called a segment master browser.
Ip helper forwards broadcast packets meant for the local LAN
to remote segments causing browse errors just like the ones
the OP is seeing. A multihomed master browser will cause the
same errors.

If you are not running a router between your subnets then you should make
your DHCP and Master DC servers 255.0.0.0 class A or even a class B
255.255.0.0 sub net. The server will see both subnets.. and just give the
server 2 different ip address.. i.e. 192.168.1.1 and 192.168.200.1 DHCP
server can be 192.168.1.2 and 192.168.200.2. i only have 1 ip and a class A
subnet on my corp lan the servers have no issues seeing all comuters across
the WAN.

One other thing to note is that if you wish to no tmake your servers have 2
IPs / class AorB subnet / 2 subnets. Then you need a router on your network
behind the firewall that will route that traffic to different computers.

if you want all computers to see all computers then subnet for all should be
255.255.0.0 for a 192.168.xxx.xxx network... all computers from 192.168.1.1
to 192.168.254.254 (192.168.255.255 is a broad cast) that should also fix
the problem because they are all part of the same subnet.

Putting them all on the same tcp/ip subnet is not a viable solution IMHO.

 

[Grant]

Thanks for that info. I should explain in further detail what the
configuration is here.

Machine1: win2k3, DC, 2 network cards on the same subnet, was cofigured for
routing and remote access, now disabled.
Machine2: win2k3, DC, 2 network cards on the same subnet, cofigured for
routing and remote access. This machine will be replacing Machine1.

Machine2 has been trying to get the browser list from machine1 for a couple
of days now and now when I try and browse the domain from machine2 I get
this new error message:

----------------------
System error 6118 has occurred.
The list of servers for this workgroup is not currently available
----------------------

However I can browse ALL machines on my domain from Machine1. I can see both
subnets fine. Any other computers on this subnet can only see the .1 subnet
though.

This problem has something to do with this pesky browser service. All I have
changed on Machine2 is to remove the Wins server from each network card and
enable NETBIOS over TCP/IP. The machine is now impotent at browsing the
domain.

Why cant machine2 get this list from machine1? They can both see each other
fine - theyre both DC's ffs!

grrrrr

DHCP servers are supposed to check to see if an ip address is on the
network. if it doesn't find it then it will pass out that il address.

One thing that i did before moving DHCP was to set the exporation for a
DHPC
ip was down to about 15 min. That way the computer would request a new ip
address sooner rather than later. Standard time out is 1 day i think not
sure. I have mine set to 8 because of the amount of guest that come in
and
out of the office. It allows for IPs not to be taken up all day long if
we
run out.

As far as your Browser war is conserned -- i have that problem also
because
of subnetting. I'm running about 50 different subnet through Cisco
routers.
and 4 states. If i use ip helper address through the routers to pass out
DHPC to those locations on there subnet (my DHCP scope is huge BTW) and
don't cut off other ports on the router .. everything would be at war
because a computer on each subnet will want a master browers for there
subnet. Windows 98 computers will also cause Browser issues. They don't
understand windows 2000 and above.

If you are not running a router between your subnets then you should make
your DHCP and Master DC servers 255.0.0.0 class A or even a class B
255.255.0.0 sub net. The server will see both subnets.. and just give the
server 2 different ip address.. i.e. 192.168.1.1 and 192.168.200.1 DHCP
server can be 192.168.1.2 and 192.168.200.2. i only have 1 ip and a class
A
subnet on my corp lan the servers have no issues seeing all comuters
across
the WAN.

One other thing to note is that if you wish to no tmake your servers have
2
IPs / class AorB subnet / 2 subnets. Then you need a router on your
network
behind the firewall that will route that traffic to different computers.

if you want all computers to see all computers then subnet for all should
be
255.255.0.0 for a 192.168.xxx.xxx network... all computers from
192.168.1.1
to 192.168.254.254 (192.168.255.255 is a broad cast) that should also fix
the problem because they are all part of the same subnet.

Just do a "release/renew" on the machine. It will not be a lasting problem.
Don't mess with anything.

--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

I moved DHCP to a new server and one of the client machines got a duplicate
IP address error message yesterday. Is that what you mean? Is there a way
to clear this error database and start again?

Lost .200 view may be caused by initial "Duplicate name exist" error and
its
resolution.

 

[Michael Giorgio - MS MVP]

You've got multihomed master browser issue:
http://support.microsoft.com/search/default.aspx?qu=multihomed master browser

BTW WINS aids in browsing.

Thanks for that info. I should explain in further detail what the
configuration is here.

Machine1: win2k3, DC, 2 network cards on the same subnet, was cofigured for
routing and remote access, now disabled.
Machine2: win2k3, DC, 2 network cards on the same subnet, cofigured for
routing and remote access. This machine will be replacing Machine1.

Machine2 has been trying to get the browser list from machine1 for a couple
of days now and now when I try and browse the domain from machine2 I get
this new error message:

----------------------
System error 6118 has occurred.
The list of servers for this workgroup is not currently available
----------------------

However I can browse ALL machines on my domain from Machine1. I can see both
subnets fine. Any other computers on this subnet can only see the .1 subnet
though.

This problem has something to do with this pesky browser service. All I have
changed on Machine2 is to remove the Wins server from each network card and
enable NETBIOS over TCP/IP. The machine is now impotent at browsing the
domain.

Why cant machine2 get this list from machine1? They can both see each other
fine - theyre both DC's ffs!

grrrrr

DHCP servers are supposed to check to see if an ip address is on the
network. if it doesn't find it then it will pass out that il address.

One thing that i did before moving DHCP was to set the exporation for a
DHPC
ip was down to about 15 min. That way the computer would request a new ip
address sooner rather than later. Standard time out is 1 day i think not
sure. I have mine set to 8 because of the amount of guest that come in
and
out of the office. It allows for IPs not to be taken up all day long if
we
run out.

As far as your Browser war is conserned -- i have that problem also
because
of subnetting. I'm running about 50 different subnet through Cisco
routers.
and 4 states. If i use ip helper address through the routers to pass out
DHPC to those locations on there subnet (my DHCP scope is huge BTW) and
don't cut off other ports on the router .. everything would be at war
because a computer on each subnet will want a master browers for there
subnet. Windows 98 computers will also cause Browser issues. They don't
understand windows 2000 and above.

If you are not running a router between your subnets then you should make
your DHCP and Master DC servers 255.0.0.0 class A or even a class B
255.255.0.0 sub net. The server will see both subnets.. and just give the
server 2 different ip address.. i.e. 192.168.1.1 and 192.168.200.1 DHCP
server can be 192.168.1.2 and 192.168.200.2. i only have 1 ip and a class
A
subnet on my corp lan the servers have no issues seeing all comuters
across
the WAN.

One other thing to note is that if you wish to no tmake your servers have
2
IPs / class AorB subnet / 2 subnets. Then you need a router on your
network
behind the firewall that will route that traffic to different computers.

if you want all computers to see all computers then subnet for all should
be
255.255.0.0 for a 192.168.xxx.xxx network... all computers from
192.168.1.1
to 192.168.254.254 (192.168.255.255 is a broad cast) that should also fix
the problem because they are all part of the same subnet.

Just do a "release/renew" on the machine. It will not be a lasting problem.
Don't mess with anything.

--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

I moved DHCP to a new server and one of the client machines got a
duplicate
IP address error message yesterday. Is that what you mean? Is there

a
way

to clear this error database and start again?

Lost .200 view may be caused by initial "Duplicate name exist"

error
and

its
resolution.

 

[Jetro]

Machine2: ... 2 network cards on the same subnet...

...removed the Wins server from each network card and enable NetBIOS over
TCP/IP...

In what mode are your NICs now, i.e. B-, P-, M-, or H-node?

 

[Bill Grant]

To add to what Michael has said, using a DC as a remote access server is
not a great idea. Browsing will certainly be a problem and you may get
problems with DNS as well. There are a couple of KB articles on this. They
were issued for W2k but still apply for W2k3 DCs. The issue is similar to
the old NT problem of multihomed browsers.

292822 Name Resolution and Connectivity Issues on Windows 2000 Domain
Controller with Routing and Remote Access and DNS Installed.

830063 Name resolution and connectivity issues on Windows 2000 domain
controllers that have the Routing and Remote Access service and DNS
installed.

You've got multihomed master browser issue:
http://support.microsoft.com/search/default.aspx?qu=multihomed master browser

BTW WINS aids in browsing.

Thanks for that info. I should explain in further detail what the
configuration is here.

Machine1: win2k3, DC, 2 network cards on the same subnet, was
cofigured for routing and remote access, now disabled.
Machine2: win2k3, DC, 2 network cards on the same subnet, cofigured
for routing and remote access. This machine will be replacing
Machine1.

Machine2 has been trying to get the browser list from machine1 for a
couple of days now and now when I try and browse the domain from
machine2 I get this new error message:

----------------------
System error 6118 has occurred.
The list of servers for this workgroup is not currently available
----------------------

However I can browse ALL machines on my domain from Machine1. I can
see both subnets fine. Any other computers on this subnet can only
see the .1 subnet though.

This problem has something to do with this pesky browser service.
All I have changed on Machine2 is to remove the Wins server from
each network card and enable NETBIOS over TCP/IP. The machine is now
impotent at browsing the domain.

Why cant machine2 get this list from machine1? They can both see
each other fine - theyre both DC's ffs!

grrrrr

DHCP servers are supposed to check to see if an ip address is on the
network. if it doesn't find it then it will pass out that il
address.

One thing that i did before moving DHCP was to set the exporation
for a DHPC
ip was down to about 15 min. That way the computer would request a
new ip address sooner rather than later. Standard time out is 1
day i think not sure. I have mine set to 8 because of the amount
of guest that come in and
out of the office. It allows for IPs not to be taken up all day
long if we
run out.

As far as your Browser war is conserned -- i have that problem also
because
of subnetting. I'm running about 50 different subnet through Cisco
routers.
and 4 states. If i use ip helper address through the routers to
pass out DHPC to those locations on there subnet (my DHCP scope is
huge BTW) and don't cut off other ports on the router .. everything
would be at war because a computer on each subnet will want a
master browers for there subnet. Windows 98 computers will also
cause Browser issues. They don't understand windows 2000 and above.

If you are not running a router between your subnets then you
should make your DHCP and Master DC servers 255.0.0.0 class A or
even a class B 255.255.0.0 sub net. The server will see both
subnets.. and just give the server 2 different ip address.. i.e.
192.168.1.1 and 192.168.200.1 DHCP server can be 192.168.1.2 and
192.168.200.2. i only have 1 ip and a class A
subnet on my corp lan the servers have no issues seeing all comuters
across
the WAN.

One other thing to note is that if you wish to no tmake your
servers have 2
IPs / class AorB subnet / 2 subnets. Then you need a router on your
network
behind the firewall that will route that traffic to different
computers.

if you want all computers to see all computers then subnet for all
should be
255.255.0.0 for a 192.168.xxx.xxx network... all computers from
192.168.1.1
to 192.168.254.254 (192.168.255.255 is a broad cast) that should
also fix the problem because they are all part of the same subnet.


Just do a "release/renew" on the machine. It will not be a lasting
problem. Don't mess with anything.

--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

I moved DHCP to a new server and one of the client machines got a
duplicate IP address error message yesterday. Is that what you
mean? Is there a way to clear this error database and start again?

Lost .200 view may be caused by initial "Duplicate name exist"
error and its
resolution.