2nd nic receive but not send

  • Thread starter Thread starter Trapulo
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Trapulo

I've a server with two nics. Today I've connected the second, previuosly
disconnected. The two nics are on different subnets, phisically on the same
switch.

If I send packets frop a client to the second (ping, or an http request), I
can see inbound packets growing, but there are not total outbound packets
change and therefore the client has in fact no response.
If I ping the gateway of second nic from the server, I can see the outbound
and inbound packets growing, so I think the nic is properly connected and
working.

With the first nic all right.

Waht can be? The server has ISA server installed, but I think the problem is
not related to this, because I've tried so shutdown it, and there is no
difference.

thanks
 
Switches are not Routers. You need a Router to cross subnets,...that is a
*real* Routers, a LAN Router,...not a Cable/DSL NAT box. The Server with
two NICs could possibly configured as a router.

You also need a topology design that agrees with what you are doing,...I
don't believe that is the case from your description.
 
The configuration is ok. I solved: either stopping isa firewall service,
there is an other related service not present in ISA consolle. If I stop it,
all works. It ISA that cannot manage two external nics... :(



Phillip Windell said:
Switches are not Routers. You need a Router to cross subnets,...that is a
*real* Routers, a LAN Router,...not a Cable/DSL NAT box. The Server with
two NICs could possibly configured as a router.

You also need a topology design that agrees with what you are doing,...I
don't believe that is the case from your description.


--

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


Trapulo said:
I've a server with two nics. Today I've connected the second, previuosly
disconnected. The two nics are on different subnets, phisically on the same
switch.

If I send packets frop a client to the second (ping, or an http
Click to expand...
request),
I
can see inbound packets growing, but there are not total outbound packets
change and therefore the client has in fact no response.
If I ping the gateway of second nic from the server, I can see the outbound
and inbound packets growing, so I think the nic is properly connected and
working.

With the first nic all right.

Waht can be? The server has ISA server installed, but I think the
Click to expand...
problem
is
not related to this, because I've tried so shutdown it, and there is no
difference.

thanks
Click to expand...
Click to expand...
 
Trapulo said:
The configuration is ok. I solved: either stopping isa firewall service,
there is an other related service not present in ISA consolle. If I stop it,
all works. It ISA that cannot manage two external nics... :(
Click to expand...

Yes it can. It just cannot have multiple external NICs. If this other
internal NIC is a different subnet as you mentioned in the first post, then
that additional subnet must be added to the LAT. But none-the-less you are
better off not having three NICs in it in any case.
 
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