網路卡的怪問題

[rabbitwang]

請教各位，我現在是使用B2DPureKDE最新版，用B2D安裝到我的筆記型電腦(HP Presario 1500)，問題來了，明明電腦裡只有一個網路卡，為什麼會出現eth0 eth1呢？以下是我ifconfig -a的結果，有人可以告訴我這是怎麼回事嗎？
eth0 Link encap:Ethernet HWaddr 00:08:02:CF:D2:3C
inet addr:192.168.0.2 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::208:2ff:fecf:d23c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:25237 errors:0 dropped:0 overruns:0 frame:0
TX packets:22412 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:25141350 (23.9 MiB) TX bytes:2556653 (2.4 MiB)

eth1 Link encap:UNSPEC HWaddr 00-08-02-71-9C-9D-D0-15-00-00-00-00-00-00-00-00
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:4 dropped:4 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

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:136 errors:0 dropped:0 overruns:0 frame:0
TX packets:136 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:9088 (8.8 KiB) TX bytes:9088 (8.8 KiB)

sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 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)