Freeze with dual network connection on nway switch

  • Thread starter Thread starter Freewind
  • Start date Start date
F

Freewind

Hello,

hope someone can help.

I have a w2k sp4 AMD system with two network interfaces. One on-board
(via), one as pci(realtek). Both are connected to an 5-port nway
switch from LANPOWER.
One interface is configured with raspppoe only to connect via
dsl-modem to the internet.
The other interface is configured with ip, file&printer, M$-client and
DHCP to access another w2k system at the same switch.

Always while or shortly after boot when the ip-interface is getting
the DHCP address, the system freeze totaly and will only restart via
reset.
Changing the interfaces, reconfiguring the network or a new windows
installation did not fix it.
All interfaces work well if standalone connected to the switch, also
with ip or pppoe configuration.
Without any remote connection (dsl-modem off, other pc off)only both
cables into the switch, the problem occurs.
If I stop the DHCP service on the node no problem exists. But also no
connection is working :-(

Any help is desired.

Freewind
 
The interface with PPPoE must go directly to the DSL Modem [possibly with a
cross-over cable]. The other Nic goes into the switch with the other
machines. ICS (Internet Connection Sharing) must be setup on the duel-nic
machine so that it shares the connection (acts as a NAT Device) on behalf of
the other machines [assuming that is what you were wanting to do].

The NIC with PPP0E will be the "external" (WAN) Nic, while the other Nic
will be the "internal" (LAN) Nic.
 
Hello Phillip,

no, thats not what I want.
Both systemes have to connect without the other. That´s why the switch
is behind the modem. ( reason for that is to connect simultaneous to
multiple provider with the dual network system)

For further clearness:
Why freeze the system when two network interfaces are only connected
to an nway switch ?

Thanks
Freewind
 
Freewind said:
no, thats not what I want.
Both systemes have to connect without the other. That´s why the switch
is behind the modem. ( reason for that is to connect simultaneous to
multiple provider with the dual network system)
Click to expand...

That generally is just not possible. You can only have one Default Gateway,
therefore you can only have one Provider. The second Provider can only be
used for "designated" destinations by using Static Routes in the routing
table.
 
That generally is just not possible. You can only have one Default Gateway,
therefore you can only have one Provider. The second Provider can only be
used for "designated" destinations by using Static Routes in the routing
table.
Click to expand...

Sorry, but it works. I´m connected with one interface to a privat
provider and with the second interface to another provider into my
company network via tunneling. (in fact, first I have to disable one
interface and connect to the first provider, than enable and connect
to the other)

But once again, not the connection is the problem. It is the freeze
when only both lines are connected to the switch without any
connection to the dsl-modem.

Best regards
Freewind
 
Freewind said:
But once again, not the connection is the problem. It is the freeze
when only both lines are connected to the switch without any
connection to the dsl-modem.
Click to expand...

Yes. Exactly what I'm trying to tell you. You can only have one Default
Gateway, therefore you can have only one "general Internet" Provider. The
second Provider will only work for "specified routes" by creating routes in
the Routing Table.

The GUI will let you add two Default Gateways simply because that is the
GUI,..that doesn't mean you can actually do it. When you create two Default
Gateways it will enter both in the Routing Table and cause route
conflicts,..it is not possible to have two "default" routes to "unknown"
locations.

It is possible to use "Dead Gateway Detection" on a single interface in a
single subnet, but that is not the same thing.

157025 - Default Gateway Configuration for Multihomed Computers
http://support.microsoft.com/default.aspx?scid=kb;en-us;157025&Product=win2000
 
Yes. Exactly what I'm trying to tell you. You can only have one Default
Gateway, therefore you can have only one "general Internet" Provider. The
second Provider will only work for "specified routes" by creating routes in
the Routing Table.

The GUI will let you add two Default Gateways simply because that is the
GUI,..that doesn't mean you can actually do it. When you create two Default
Gateways it will enter both in the Routing Table and cause route
conflicts,..it is not possible to have two "default" routes to "unknown"
locations.
Click to expand...

OK, one step after the other.
Let´s forgot any dsl, modem, provider, anything external network.
There is no modem connected.
There is only one system with two interfaces connected to one switch,
no more.
One interface is configured with IP and client-file-print-stuff for
M$. DHCP can be disabled or enabled. No matter.
The second interface is only configured with RASPPPOE protocol. No
TCP/IP or M$ protocol.
If both lines are up the system is hang.
I believe that in this moment there is only one interface that is
runing IP. If no default gateway is configured, than there is no
gateway defined.
All the trouble will happens before a connection to any network is
made.
I believe that the problem is only the connection from two interfaces
out of one system to one switch. I will try to test what happens if
both interfaces are runing only IP with DHCP
 
Freewind said:
The second interface is only configured with RASPPPOE protocol. No
TCP/IP or M$ protocol.
Click to expand...

Don't see how you could not have TCP/IP since since RRAS & PPPoE need it. I
never heard of M$.
If both lines are up the system is hang.
Click to expand...

Plug them into two separate switches (or a switch and hub). There is a
difference between two line being up, and two lines be up and plugged into
the same device.
 
Back
Top