有2张无线网卡,

一张BCM4312
一张R8188EU

BCM4312 wlan0 连接ssid A ,IP 192.168.1.60
R8188EU wlan1 连接ssid B ,IP 192.168.100.152

一台windows电脑在ssid B,,成功连接,而在ssid A的时候,连接不上.

ssid B的路由器中继在ssid A的上.,不知道是否和这有关.

login as: lin
lin@192.168.100.152's password:
Welcome to Ubuntu 14.04.3 LTS (GNU/Linux 3.19.0-25-generic i686)

* Documentation: https://help.ubuntu.com/

System information as of Mon Jan 25 19:47:36 EST 2016

System load: 0.0 Users logged in: 1
Usage of /: 6.0% of 107.71GB IP address for wlan0: 192.168.1.60
Memory usage: 7% IP address for wlan1: 192.168.100.152
Swap usage: 0% IP address for virbr0: 192.168.122.1
Processes: 136

Graph this data and manage this system at:
https://landscape.canonical.com/

Last login: Mon Jan 25 19:47:37 2016 from 192.168.100.106
lin@lin:~$ route -nv
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 wlan0
0.0.0.0 0.0.0.0 0.0.0.0 U 1002 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 9 0 0 wlan0
192.168.100.0 0.0.0.0 255.255.255.0 U 9 0 0 wlan1
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
lin@lin:~$ iptables -L -nv
iptables v1.4.21: can't initialize iptables table `filter': Permission denied (you must be root)
Perhaps iptables or your kernel needs to be upgraded.
lin@lin:~$ sudo iptables -L -nv
[sudo] password for lin:
Chain INPUT (policy DROP 149 packets, 5248 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT udp -- virbr0 * 0.0.0.0/0 0.0.0.0/0 udp dpt:53
0 0 ACCEPT tcp -- virbr0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:53
0 0 ACCEPT udp -- virbr0 * 0.0.0.0/0 0.0.0.0/0 udp dpt:67
0 0 ACCEPT tcp -- virbr0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:67
25356 2244K ufw-before-logging-input all -- * * 0.0.0.0/0 0.0.0.0/0
25356 2244K ufw-before-input all -- * * 0.0.0.0/0 0.0.0.0/0
18615 1605K ufw-after-input all -- * * 0.0.0.0/0 0.0.0.0/0
149 5248 ufw-after-logging-input all -- * * 0.0.0.0/0 0.0.0.0/0
149 5248 ufw-reject-input all -- * * 0.0.0.0/0 0.0.0.0/0
149 5248 ufw-track-input all -- * * 0.0.0.0/0 0.0.0.0/0

Chain FORWARD (policy DROP 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT all -- * virbr0 0.0.0.0/0 192.168.122.0/24 ctstate RELATED,ESTABLISHED
0 0 ACCEPT all -- virbr0 * 192.168.122.0/24 0.0.0.0/0
0 0 ACCEPT all -- virbr0 virbr0 0.0.0.0/0 0.0.0.0/0
0 0 REJECT all -- * virbr0 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable
0 0 REJECT all -- virbr0 * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable
0 0 ufw-before-logging-forward all -- * * 0.0.0.0/0 0.0.0.0/0
0 0 ufw-before-forward all -- * * 0.0.0.0/0 0.0.0.0/0
0 0 ufw-after-forward all -- * * 0.0.0.0/0 0.0.0.0/0
0 0 ufw-after-logging-forward all -- * * 0.0.0.0/0 0.0.0.0/0
0 0 ufw-reject-forward all -- * * 0.0.0.0/0 0.0.0.0/0
0 0 ufw-track-forward all -- * * 0.0.0.0/0 0.0.0.0/0

Chain OUTPUT (policy ACCEPT 16 packets, 640 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT udp -- * virbr0 0.0.0.0/0 0.0.0.0/0 udp dpt:68
6689 755K ufw-before-logging-output all -- * * 0.0.0.0/0 0.0.0.0/0
6689 755K ufw-before-output all -- * * 0.0.0.0/0 0.0.0.0/0
439 39996 ufw-after-output all -- * * 0.0.0.0/0 0.0.0.0/0
439 39996 ufw-after-logging-output all -- * * 0.0.0.0/0 0.0.0.0/0
439 39996 ufw-reject-output all -- * * 0.0.0.0/0 0.0.0.0/0
439 39996 ufw-track-output all -- * * 0.0.0.0/0 0.0.0.0/0

Chain ufw-after-forward (1 references)
pkts bytes target prot opt in out source destination

Chain ufw-after-input (1 references)
pkts bytes target prot opt in out source destination
17815 1391K ufw-skip-to-policy-input udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:137
56 12607 ufw-skip-to-policy-input udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:138
0 0 ufw-skip-to-policy-input tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:139
0 0 ufw-skip-to-policy-input tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:445
595 196K ufw-skip-to-policy-input udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:67
0 0 ufw-skip-to-policy-input udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:68
0 0 ufw-skip-to-policy-input all -- * * 0.0.0.0/0 0.0.0.0/0 ADDRTYPE match dst-type BROADCAST

Chain ufw-after-logging-forward (1 references)
pkts bytes target prot opt in out source destination
0 0 LOG all -- * * 0.0.0.0/0 0.0.0.0/0 limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW BLOCK] "

Chain ufw-after-logging-input (1 references)
pkts bytes target prot opt in out source destination
149 5248 LOG all -- * * 0.0.0.0/0 0.0.0.0/0 limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW BLOCK] "

Chain ufw-after-logging-output (1 references)
pkts bytes target prot opt in out source destination

Chain ufw-after-output (1 references)
pkts bytes target prot opt in out source destination

Chain ufw-before-forward (1 references)
pkts bytes target prot opt in out source destination
0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 ctstate RELATED,ESTABLISHED
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 3
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 4
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 11
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 12
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 8
0 0 ufw-user-forward all -- * * 0.0.0.0/0 0.0.0.0/0

Chain ufw-before-input (1 references)
pkts bytes target prot opt in out source destination
2481 200K ACCEPT all -- lo * 0.0.0.0/0 0.0.0.0/0
2962 256K ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 ctstate RELATED,ESTABLISHED
1 78 ufw-logging-deny all -- * * 0.0.0.0/0 0.0.0.0/0 ctstate INVALID
1 78 DROP all -- * * 0.0.0.0/0 0.0.0.0/0 ctstate INVALID
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 3
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 4
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 11
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 12
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 8
14 4592 ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 udp spt:67 dpt:68
19898 1784K ufw-not-local all -- * * 0.0.0.0/0 0.0.0.0/0
1196 174K ACCEPT udp -- * * 0.0.0.0/0 224.0.0.251 udp dpt:5353
0 0 ACCEPT udp -- * * 0.0.0.0/0 239.255.255.250 udp dpt:1900
18702 1610K ufw-user-input all -- * * 0.0.0.0/0 0.0.0.0/0

Chain ufw-before-logging-forward (1 references)
pkts bytes target prot opt in out source destination

Chain ufw-before-logging-input (1 references)
pkts bytes target prot opt in out source destination

Chain ufw-before-logging-output (1 references)
pkts bytes target prot opt in out source destination

Chain ufw-before-output (1 references)
pkts bytes target prot opt in out source destination
2481 200K ACCEPT all -- * lo 0.0.0.0/0 0.0.0.0/0
3769 516K ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 ctstate RELATED,ESTABLISHED
439 39996 ufw-user-output all -- * * 0.0.0.0/0 0.0.0.0/0

Chain ufw-logging-allow (0 references)
pkts bytes target prot opt in out source destination
0 0 LOG all -- * * 0.0.0.0/0 0.0.0.0/0 limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW ALLOW] "

Chain ufw-logging-deny (2 references)
pkts bytes target prot opt in out source destination
1 78 RETURN all -- * * 0.0.0.0/0 0.0.0.0/0 ctstate INVALID limit: avg 3/min burst 10
0 0 LOG all -- * * 0.0.0.0/0 0.0.0.0/0 limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW BLOCK] "

Chain ufw-not-local (1 references)
pkts bytes target prot opt in out source destination
87 4908 RETURN all -- * * 0.0.0.0/0 0.0.0.0/0 ADDRTYPE match dst-type LOCAL
1345 179K RETURN all -- * * 0.0.0.0/0 0.0.0.0/0 ADDRTYPE match dst-type MULTICAST
18466 1600K RETURN all -- * * 0.0.0.0/0 0.0.0.0/0 ADDRTYPE match dst-type BROADCAST
0 0 ufw-logging-deny all -- * * 0.0.0.0/0 0.0.0.0/0 limit: avg 3/min burst 10
0 0 DROP all -- * * 0.0.0.0/0 0.0.0.0/0

Chain ufw-reject-forward (1 references)
pkts bytes target prot opt in out source destination

Chain ufw-reject-input (1 references)
pkts bytes target prot opt in out source destination

Chain ufw-reject-output (1 references)
pkts bytes target prot opt in out source destination

Chain ufw-skip-to-policy-forward (0 references)
pkts bytes target prot opt in out source destination
0 0 DROP all -- * * 0.0.0.0/0 0.0.0.0/0

Chain ufw-skip-to-policy-input (7 references)
pkts bytes target prot opt in out source destination
18466 1600K DROP all -- * * 0.0.0.0/0 0.0.0.0/0

Chain ufw-skip-to-policy-output (0 references)
pkts bytes target prot opt in out source destination
0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0

Chain ufw-track-forward (1 references)
pkts bytes target prot opt in out source destination

Chain ufw-track-input (1 references)
pkts bytes target prot opt in out source destination

Chain ufw-track-output (1 references)
pkts bytes target prot opt in out source destination
3 180 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 ctstate NEW
420 39176 ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 ctstate NEW

Chain ufw-user-forward (1 references)
pkts bytes target prot opt in out source destination

Chain ufw-user-input (1 references)
pkts bytes target prot opt in out source destination
0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:21
87 4908 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:22
0 0 ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:22
0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:22
0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:80
0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:80
0 0 ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:80
0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:443
0 0 ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:443

Chain ufw-user-limit (0 references)
pkts bytes target prot opt in out source destination
0 0 LOG all -- * * 0.0.0.0/0 0.0.0.0/0 limit: avg 3/min burst 5 LOG flags 0 level 4 prefix "[UFW LIMIT BLOCK] "
0 0 REJECT all -- * * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable

Chain ufw-user-limit-accept (0 references)
pkts bytes target prot opt in out source destination
0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0

Chain ufw-user-logging-forward (0 references)
pkts bytes target prot opt in out source destination

Chain ufw-user-logging-input (0 references)
pkts bytes target prot opt in out source destination

Chain ufw-user-logging-output (0 references)
pkts bytes target prot opt in out source destination

Chain ufw-user-output (1 references)
pkts bytes target prot opt in out source destination
lin@lin:~$

1. 這一句話 不明白 能否補充
1-1. 如果你是參考網路文章 如此設定
請提供參考文章網址

2. 請補充
sudo ifconfig -a

3. 請補充 virbr0 eth0 wlan0 wlan1 的網路線流程關係
如果你是參考網路文章 請提供網路網址

1. ssid A 路由发射A, ssid B路由通过无线中继[可以理解为路由B wan口插入路由A lan口]方式连接ssid A获取wan 得到ip是192.168.1.50,独立成为路由器网关192.168.100.1,,单独再发射一个ssid B出去给人联网.

2.

3. virbr0 无连接 ,eth0 无连接 ,wlan0 连接路由A的ssid A,wlan1连接路由B的ssid B

路由A是 wan 公网,lan 192.168.1.1.
路由B是 wan 192.168.1.50. lan 为192.168.100.1

所有操作均自行,无任何网络文献.

看看這一篇能否幫你
http://wiki.qno.tw/m/index.php?title=WA ... nt=zh-hans
WAN IP Alias + G2G

谢谢你的回复,你的文章不适合我.

可能我要画个网络拓扑才能描述清楚.

而且问题好像是在ubuntu上,并不在我网络设置上,因为我网络上网一切正常.就算 停用/拔掉 USB无线网卡,wlan0照样上网等.

1. 如果你的 wlan0 wlan1 是連接在同一台電腦
可能迴路會有問題

2. 等你的网络拓扑

不好意思来晚了

Network.png 看不到 192.168.100.152