NIC Bonding

[fujikofujio]

Hi I'm using 9.04 desktop on two of my computers and they each have 2 network cards, so I bonded their nics for performance, one of them runs as a web server.

here is the /etc/network/interfaces file, they are identical on both computers

auto lo
iface lo inet loopback

auto bond0
iface bond0 inet dhcp
slaves all
bond-mode 0
bond-miimon 100
bond-downdelay 200
bond-updelay 200

I also disabled network manager applet on both of them as this seems to mess up the bonding during restart.

The other pc works fine when restarted, the server does not however. This is the result of ifconfig on the working one after a restart.

bond0 Link encap:Ethernet HWaddr 00:04:75:cd:a6:cd
inet addr:192.168.219.122 Bcast:192.168.219.255 Mask:255.255.255.0
inet6 addr: fe80::204:75ff:fecd:a6cd/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
RX packets:8489 errors:0 dropped:0 overruns:83 frame:0
TX packets:7354 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3213136 (3.2 MB) TX bytes:2218129 (2.2 MB)

eth1 Link encap:Ethernet HWaddr 00:04:75:cd:a6:cd
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:4196 errors:0 dropped:0 overruns:0 frame:0
TX packets:3648 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1606947 (1.6 MB) TX bytes:1082329 (1.0 MB)
Interrupt:23 Base address:0x4000

eth2 Link encap:Ethernet HWaddr 00:04:75:cd:a6:cd
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:4293 errors:0 dropped:0 overruns:83 frame:0
TX packets:3706 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1606189 (1.6 MB) TX bytes:1135800 (1.1 MB)
Interrupt:16 Base address:0x8000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:3007 errors:0 dropped:0 overruns:0 frame:0
TX packets:3007 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1141188 (1.1 MB) TX bytes:1141188 (1.1 MB)

Now here is the result of ifconfig on the server (running nginx/php/mysql/squid/privoxy)

bond0 Link encap:Ethernet HWaddr 00:02:b3:e7:73:43
inet addr:192.168.219.142 Bcast:192.168.219.255 Mask:255.255.255.0
inet6 addr: fe80::202:b3ff:fee7:7343/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
RX packets:565 errors:0 dropped:0 overruns:0 frame:0
TX packets:533 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:254072 (254.0 KB) TX bytes:101775 (101.7 KB)

eth0 Link encap:Ethernet HWaddr 00:02:b3:e7:73:43
inet addr:192.168.219.142 Bcast:192.168.219.255 Mask:255.255.255.0
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:332 errors:0 dropped:0 overruns:0 frame:0
TX packets:260 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:189199 (189.1 KB) TX bytes:50509 (50.5 KB)

eth1 Link encap:Ethernet HWaddr 00:02:b3:e7:73:43
inet addr:192.168.219.142 Bcast:192.168.219.255 Mask:255.255.255.0
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:233 errors:0 dropped:0 overruns:0 frame:0
TX packets:273 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:64873 (64.8 KB) TX bytes:51266 (51.2 KB)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:188 errors:0 dropped:0 overruns:0 frame:0
TX packets:188 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:53615 (53.6 KB) TX bytes:53615 (53.6 KB)

For some reason eth0 and eth1 still continues to request an ip from the dhcp server. Only after typing

sudo ifconfig eth0 down
sudo ifconfig eth1 down

does the bonding work again and I'm able to access the internet and my web server becomes accessible again on the internet.

Any clues, tips, I would greatly appreciate it thanks