Hi,
Well, problem solved (yeah). Thanks to David Thorburn-Gundlach
<david@bae.uga.edu> who pointed out that my problem was with my switch not
my SUNs.
I used virtual LANs on my switch and it appears to have done the trick. I
only see the udp traffic on one of the interfaces.
This group is the best! The original post is below.
Thanks again,
Nicci Tynen
ORINCON Corporation
Original Post:
> Hi,
>
> I have a network configuration as follows:
>
> ROUTERS:
> 10.141.20.1/255.255.255.0 (a router)
> 10.1.0.1/255.255.0.0 (a firewall appliance)
>
> There are machines on each of these subnets all on the same switch
> On the 10.141.20 subnet there is a box that uses udp to broadcast
> information, address: 10.141.20.198/255.255.255.0, no router set. I
> have no choice about the udp broadcast, it's a 3rd party vendor.
> I have two SUN workstations that have two nics with an address on each
> subnet:
> Machine1: le0 = 10.1.0.110/255.255.0.0; le1 =
> 10.141.20.110/255.255.255.0 (ip_forwarding, ip_forward_src_routed set to
> 0, routed not running)
> Machine2: hme0 = 10.1.0.100/255.255.0.0; hme1 =
> 10.141.20.100/255.255.255.0 (ip_forwarding, ip_forward_src_routed set to
> 0, routed not running)
>
> Problem: I run snoop on the machines with only one nic card (on the
> 10.1 subnet) and am receiving the udp broadcast from the 10.141.20
> subnet. The information from snoop says Source=10.141.20.198
> Destination=10.141.20.255. This is an even bigger problem because the
> machines with two nics are logging this data and as a result are logging
> the data twice.
>
> I'm sure I'm missing something really basic here. Any ideas how I can
> make this udp broadcast not reach my 10.1.0.0 subnet? I hope that
> removing the ethernet interface from one of the subnets isn't my only
> solution.
>
> Summary to follow.
>
> Thanks,
> Nicci Tynen
> ORINCON Corporation
attached mail follows:
Hi,
I have a network configuration as follows:
ROUTERS:
10.141.20.1/255.255.255.0 (a router)
10.1.0.1/255.255.0.0 (a firewall appliance)
There are machines on each of these subnets all on the same switch
On the 10.141.20 subnet there is a box that uses udp to broadcast
information, address: 10.141.20.198/255.255.255.0, no router set. I
have no choice about the udp broadcast, it's a 3rd party vendor.
I have two SUN workstations that have two nics with an address on each
subnet:
Machine1: le0 = 10.1.0.110/255.255.0.0; le1 =
10.141.20.110/255.255.255.0 (ip_forwarding, ip_forward_src_routed set to
0, routed not running)
Machine2: hme0 = 10.1.0.100/255.255.0.0; hme1 =
10.141.20.100/255.255.255.0 (ip_forwarding, ip_forward_src_routed set to
0, routed not running)
Problem: I run snoop on the machines with only one nic card (on the
10.1 subnet) and am receiving the udp broadcast from the 10.141.20
subnet. The information from snoop says Source=10.141.20.198
Destination=10.141.20.255. This is an even bigger problem because the
machines with two nics are logging this data and as a result are logging
the data twice.
I'm sure I'm missing something really basic here. Any ideas how I can
make this udp broadcast not reach my 10.1.0.0 subnet? I hope that
removing the ethernet interface from one of the subnets isn't my only
solution.
Summary to follow.
Thanks,
Nicci Tynen
ORINCON Corporation
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:12:39 CDT