a networking question

stan stanb at panix.com
Thu Jan 6 13:09:42 UTC 2011


I have a workstation in my lab with 10.04 on it. I want to create a
situation where I can atache test devices on various 192.168.x.x subnets to
one of the switches it is already pluged in to. Taht is I want multiple
subnets on the smae physcial "wire" Here is what I have put in
/etc/network/interfaces:

auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0

auto eth0
iface eth0 inet static
address 10.209.120.12
netmask 255.255.255.0
gateway 10.209.120.1


# auto eth1

# iface eth1 inet static
# address 192.168.1.5
# netmask 255.255.255.0

# iface eth1 inet static
# address 192.168.1.6
# netmask 255.255.255.0

# iface eth1 inet static
# address xxx.85.106.148
# netmask 255.255.255.128

auto br0
iface br0 inet static
address xxx.85.106.148
broadcast xxx.85.106.255
netmask 255.255.255.128
# gateway xxx.85.106.143
bridge_ports eth1
bridge_fd 2.5

auto eth1:0
iface eth1:0 inet static
name Ethernet alias LAN card
address 192.168.100.2
netmask 255.255.255.0
broadcast 192.168.100.255
network 192.168.100.0

auto eth1:1
auto eth1:1
iface eth1:1 inet static
name Ethernet 2nd alias LAN card
address 192.168.1.11
netmask 255.255.255.0
broadcast 192.168.1.255
network 192.168.1.0

And here is what netstat -rn reports:

stan at plabws1:/etc/network$ netstat -rn
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt
Iface
xxx.85.106.128  0.0.0.0         255.255.255.128 U         0 0          0
br0
192.168.100.0   0.0.0.0         255.255.255.0   U         0 0          0
eth1
10.209.120.0    0.0.0.0         255.255.255.0   U         0 0          0
eth0
192.168.1.0     0.0.0.0         255.255.255.0   U         0 0          0
eth1
192.168.122.0   0.0.0.0         255.255.255.0   U         0 0          0
virbr0
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0
eth0
0.0.0.0         10.209.120.1    0.0.0.0         UG        0 0          0
eth0

But I cannot ping something on 192.168.1.x What am I doing wrong?


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