Linux
試圖橋接網卡。這個錯誤是什麼意思?
我想在我的 OpenVPN 伺服器之間架起橋樑
br0
,tap0
但我在這篇文章的底部收到了錯誤消息。背景
伺服器有一個物理
eth0
IPxxx.xxx.68.58
。網橋應該有
xxx.xxx.85.5
,並且 OpenVPN 客戶端從中獲取 IP 的tap0
NIC 位於xxx.xxx.85.50
-範圍內xxx.xxx.85.100
。為了使橋樑我做:
#!/bin/bash br="br0" tap="tap0" eth="eth0:0" eth_ip="xxx.xxx.85.5" eth_netmask="255.255.255.0" eth_broadcast="255.255.71.255" openvpn --mktun --dev $tap brctl addbr $br brctl addif $br $eth brctl addif $br $tap ifconfig $tap 0.0.0.0 promisc up echo "debug" ifconfig $eth 0.0.0.0 promisc up echo "debug" ifconfig $br $eth_ip netmask $eth_netmask broadcast $eth_broadcast
但得到這個錯誤;
Tue Sep 13 10:40:46 2011 TUN/TAP device tap0 opened Tue Sep 13 10:40:46 2011 Persist state set to: ON debug SIOCSIFFLAGS: Cannot assign requested address SIOCSIFFLAGS: Cannot assign requested address SIOCSIFFLAGS: Cannot assign requested address debug
我究竟做錯了什麼?
更新
在
set -vx
腳本頂部添加後,我得到:br="br0" + br=br0 tap="tap0" + tap=tap0 eth="eth0:0" + eth=eth0:0 eth_ip="xxx.xxx.85.5" + eth_ip=xxx.xxx.85.5 eth_netmask="255.255.255.0" + eth_netmask=255.255.255.0 eth_broadcast="255.255.71.255" + eth_broadcast=255.255.71.255 openvpn --mktun --dev $tap + openvpn --mktun --dev tap0 Tue Sep 13 11:42:33 2011 TUN/TAP device tap0 opened Tue Sep 13 11:42:33 2011 Persist state set to: ON brctl addbr $br + brctl addbr br0 brctl addif $br $eth + brctl addif br0 eth0:0 brctl addif $br $tap + brctl addif br0 tap0 ifconfig $tap 0.0.0.0 promisc up + ifconfig tap0 0.0.0.0 promisc up ifconfig $eth 0.0.0.0 promisc up + ifconfig eth0:0 0.0.0.0 promisc up SIOCSIFFLAGS: Cannot assign requested address SIOCSIFFLAGS: Cannot assign requested address SIOCSIFFLAGS: Cannot assign requested address ifconfig $br $eth_ip netmask $eth_netmask broadcast $eth_broadcast + ifconfig br0 xxx.xxx.85.5 netmask 255.255.255.0 broadcast 255.255.71.255
查看單個命令的輸出,而不僅僅是批處理文件,這將非常有用;或者您可以放在
set -vx
批處理文件的頂部附近,這將提供更有用的輸出。但乍一看,問題可能是您試圖將乙太網子介面 (eth0:0) 奴役到網橋,而不是物理埠。如果更換會發生什麼
eth="eth0:0"
和
eth="eth0"
在腳本的頂部?
如果您不想這樣做,因為您將 eth0 用於不同的目的,您能否更詳細地解釋您想要實現的目標?