4:13 a.m.
Hi,
I have a fc14 box with two interfaces that I'm having some difficulty
setting up a bridge properly. I have a few kvm guests set up and
running, but I've switched from using NetworkManager to using standard
networking with a bridge. I've modified the ifcfg-eth0 and created
ifcfg-br0 as per the standard documentation, but I think I'm having
routing problems. This is what the network looks like:
[root@fc14 ~]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
68.195.XXX.40 * 255.255.255.248 U 0 0 0 br0
192.168.1.0 * 255.255.255.0 U 0 0 0 eth1
192.168.125.0 * 255.255.255.0 U 0 0 0 virbr0
link-local * 255.255.0.0 U 1003 0 0 eth1
link-local * 255.255.0.0 U 1004 0 0 br0
default ool-44c3c129.st 0.0.0.0 UG 0 0 0 br0
br0 Link encap:Ethernet HWaddr 40:61:86:4E:84:09
inet addr:68.195.XXX.42 Bcast:68.195.XXX.47 Mask:255.255.255.248
inet6 addr: fe80::a0e7:ecff:fefd:340a/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3883 errors:0 dropped:0 overruns:0 frame:0
TX packets:3579 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1818327 (1.7 MiB) TX bytes:590720 (576.8 KiB)
eth0 Link encap:Ethernet HWaddr 40:61:86:4E:84:09
inet6 addr: fe80::4261:86ff:fe4e:8409/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3891 errors:0 dropped:0 overruns:0 frame:0
TX packets:3551 errors:0 dropped:0 overruns:0 carrier:1
collisions:0 txqueuelen:1000
RX bytes:1873169 (1.7 MiB) TX bytes:588302 (574.5 KiB)
Interrupt:42
eth1 Link encap:Ethernet HWaddr 00:0E:0C:3B:36:F4
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::20e:cff:fe3b:36f4/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7622 errors:0 dropped:0 overruns:0 frame:0
TX packets:6936 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1062687 (1.0 MiB) TX bytes:4304984 (4.1 MiB)
virbr0 Link encap:Ethernet HWaddr E6:ED:D2:6E:58:5C
inet addr:192.168.125.1 Bcast:192.168.125.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
vnet0 Link encap:Ethernet HWaddr FE:54:00:67:2C:4C
inet6 addr: fe80::fc54:ff:fe67:2c4c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5 errors:0 dropped:0 overruns:0 frame:0
TX packets:391 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:300 (300.0 b) TX bytes:23358 (22.8 KiB)
I've left out the loopback for simplicity. The problem is that I can't
reach the br0 device from a server on the eth1 device (the 192.168.
network).
Is this a routing issue? Should I also add the eth1 device to the
bridge? If so, how would I do that?
Also, can you explain under what circumstances a tun device would be
used? Does that have any relation to bridging?
Thanks,
Alex