Hi,
I want to connect 2 Computers (C1 and C2) to the
LAN of my dorm, but I only have one connection to it.
Instead of buying a hub/switch i opted for making a
non-transparen bridge.
I want both computers to be able to use the
internet and I want both computers to be able to have
services running in the LAN.
Internet <-> [ Gateway <-> ( eth0 C1 eth1 ) <-> C2 ]
The LAN is represented by the computers in the [ ],
C1 is the bridge.
Gateway: 192.168.10.161
C2: 192.168.10.198
eth0 and eth1 192.168.10.178
C1 should be 192.168.10.178
I got the bridge working, meaning that C2 can be a
server and can use the internet, but I can't ping the
virtual interface from C1 from any computer and i
can't ping any computer from Computer C1. I tried
setting the IPs of eth0 and eth1 to 0.0.0.0, but it
didn`t help.
Any help would be apreciated.
PS: Further relevant information follows
(startup-script, route and ifconfig):
Thanks in Advance
Leonardo Weiss Chaves
Script to start the bridge:
brctl addbr br1
brctl addif br1 eth1
brctl addif br1 eth0
brctl stp br1 off
ifconfig br1 192.168.10.178 up
route -n without bridge:
Destination Gateway Genmask Flags
Metric Ref Use Iface
0.0.0.0 0.0.0.0 255.255.255.0 U
0 0 0 eth2
192.168.10.0 0.0.0.0 255.255.255.0 U
0 0 0 eth1
192.168.10.0 0.0.0.0 255.255.255.0 U
0 0 0 eth1
127.0.0.0 0.0.0.0 255.0.0.0 U
0 0 0 lo
0.0.0.0 192.168.10.161 0.0.0.0 UG
0 0 0 eth0
route -n with bridge:
Destination Gateway Genmask Flags
Metric Ref Use Iface
0.0.0.0 0.0.0.0 255.255.255.0 U
0 0 0 eth2
192.168.10.0 0.0.0.0 255.255.255.0 U
0 0 0 eth1
192.168.10.0 0.0.0.0 255.255.255.0 U
0 0 0 eth1
192.168.10.0 0.0.0.0 255.255.255.0 U
0 0 0 br1
127.0.0.0 0.0.0.0 255.0.0.0 U
0 0 0 lo
0.0.0.0 192.168.10.161 0.0.0.0 UG
0 0 0 eth0
ifconfig without bridge:
eth0 Link encap:Ethernet HWaddr
00:00:E2:1A:BE:53
inet addr:192.168.10.178
Bcast:192.168.10.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500
Metric:1
RX packets:369707 errors:0 dropped:0
overruns:0 frame:1
TX packets:2061 errors:0 dropped:0
overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:28240539 (26.9 Mb) TX bytes:203694
(198.9 Kb)
Interrupt:19 Base address:0xc000
eth1 Link encap:Ethernet HWaddr
00:00:21:09:07:A0
inet addr:192.168.10.178
Bcast:192.168.10.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500
Metric:1
RX packets:49672 errors:0 dropped:0
overruns:0 frame:0
TX packets:404778 errors:0 dropped:0
overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:3433106 (3.2 Mb) TX
bytes:153180119 (146.0 Mb)
Interrupt:18 Base address:0x6000
eth2 Link encap:Ethernet HWaddr
10:00:5A:BA:45:03
UP BROADCAST RUNNING MULTICAST MTU:1500
Metric:1
RX packets:0 errors:0 dropped:0 overruns:0
frame:0
TX packets:0 errors:1 dropped:0 overruns:0
carrier:0
collisions:0 txqueuelen:100
RX bytes:0 (0.0 b) TX bytes:120 (120.0 b)
Interrupt:3 Base address:0x280
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:744 errors:0 dropped:0 overruns:0
frame:0
TX packets:744 errors:0 dropped:0 overruns:0
carrier:0
collisions:0 txqueuelen:0
RX bytes:77112 (75.3 Kb) TX bytes:77112
(75.3 Kb)
ifconfig with bridge:
br1 Link encap:Ethernet HWaddr
00:00:21:09:07:A0
inet addr:192.168.10.178
Bcast:192.168.10.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500
Metric:1
RX packets:185572 errors:0 dropped:0
overruns:0 frame:0
TX packets:1 errors:0 dropped:0 overruns:0
carrier:0
collisions:0 txqueuelen:0
RX bytes:9302695 (8.8 Mb) TX bytes:42 (42.0
b)
eth0 Link encap:Ethernet HWaddr
00:00:E2:1A:BE:53
inet addr:192.168.10.178
Bcast:192.168.10.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500
Metric:1
RX packets:367844 errors:0 dropped:0
overruns:0 frame:1
TX packets:2056 errors:0 dropped:0
overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:28120555 (26.8 Mb) TX bytes:202539
(197.7 Kb)
Interrupt:19 Base address:0xc000
eth1 Link encap:Ethernet HWaddr
00:00:21:09:07:A0
inet addr:192.168.10.178
Bcast:192.168.10.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500
Metric:1
RX packets:49672 errors:0 dropped:0
overruns:0 frame:0
TX packets:403742 errors:0 dropped:0
overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:3433106 (3.2 Mb) TX
bytes:153112667 (146.0 Mb)
Interrupt:18 Base address:0x6000
eth2 Link encap:Ethernet HWaddr
10:00:5A:BA:45:03
UP BROADCAST RUNNING MULTICAST MTU:1500
Metric:1
RX packets:0 errors:0 dropped:0 overruns:0
frame:0
TX packets:0 errors:1 dropped:0 overruns:0
carrier:0
collisions:0 txqueuelen:100
RX bytes:0 (0.0 b) TX bytes:120 (120.0 b)
Interrupt:3 Base address:0x280
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:741 errors:0 dropped:0 overruns:0
frame:0
TX packets:741 errors:0 dropped:0 overruns:0
carrier:0
collisions:0 txqueuelen:0
RX bytes:76520 (74.7 Kb) TX bytes:76520
(74.7 Kb)
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