openwrt上网配置的一些理解(三)

时间:2023-12-09 20:26:43

接着上面的继续捣腾multiwan,首先考虑一下上一篇中记录的multiwan配置,这里的配置是否正确,得研究一下。先贴一下上一篇的配置文件,如下:

config 'multiwan' 'config'
option 'default_route' 'balancer'
# health_monitor below is defaulted to parallel, and can be set to
# serial to save system resources.
# option 'health_monitor' 'serial'
# option 'debug' '' config 'interface' 'wan'
option 'weight' ''
option 'health_interval' ''
option 'icmp_hosts' 'gateway'
# icmp_count is defaulted to , and can be increased to reduce
# false positives.
# option 'icmp_count' ''
option 'timeout' ''
option 'health_fail_retries' ''
option 'health_recovery_retries' ''
option 'failover_to' 'wan1'
option 'dns' 'auto' config 'interface' 'wan1'
option 'weight' ''
option 'health_interval' ''
option 'icmp_hosts' 'gateway'
option 'timeout' ''
option 'health_fail_retries' ''
option 'health_recovery_retries' ''
option 'failover_to' 'wan2'
option 'dns' 'auto' config 'interface' 'wan2'
option 'weight' ''
option 'health_interval' ''
option 'icmp_hosts' 'gateway'
option 'timeout' ''
option 'health_fail_retries' ''
option 'health_recovery_retries' ''
option 'failover_to' 'wan'
option 'dns' 'auto' #config 'mwanfw'
# option 'src' '192.168.1.0/24'
# option 'dst' 'ftp.netlab7.com'
# option 'proto' 'tcp'
# option 'ports' ''
# option 'wanrule' 'lan' # VoIP traffic goes through wan
# config 'mwanfw'
# option 'src' '192.168.1.0/24'
# option 'proto' 'udp'
# option 'port_type' 'source-ports'
# option 'ports' '5060,16384:16482'
# option 'wanrule' 'wan' config 'mwanfw'
# option 'src' '192.168.0.3'
# option 'proto' 'icmp'
option 'wanrule' 'balancer' config 'mwanfw'
# option 'dst' 'www.whatismyip.com'
option 'wanrule' 'fastbalancer'

还是在网上找找有没有相关人士做过这个:

http://www.openwrt.org.cn/bbs/forum.php?mod=viewthread&tid=9848&extra=&page=1实验多WAN带宽叠加——Multiwan篇

这个帖子做实验很严谨,于是我跟着做了跟我网络环境对应的实验,发现确实是不行的。当然根据帖子我把multiwan修改了,就是把failover_to全部修改成balancer。但是还是不行。后来我在http://wiki.openwrt.org/doc/uci/multiwan看到这么一句话:Note: Multiwan will NOT work if the WAN connections are on the same subnet and share the same default gateway.

我的是啥情况:用一张图来说明我的网络。

openwrt上网配置的一些理解(三)

3个wan口,全部连上时,都会走eth1,也就是wan口,拔掉wan口网线,ping 百度不通,ping219.245.65.89可以回来一个数据,然后停止。很明显没有自动切换,但是不知道有没有叠加,其实我不关心叠不叠加,我只关心我随便插哪个,他就用哪个,我是要确保网络畅通。所以还得继续想办法。

根据帖子的内容我又进一步了解了下ip route。结果如下:

ip route show table
192.168.2.0/ dev br-lan proto kernel scope link src 192.168.2.1
192.168.1.0/ dev eth2 proto kernel scope link src 192.168.1.247
default proto static
nexthop via 192.168.1.1 dev eth1 weight
nexthop via 192.168.1.1 dev eth2 weight
nexthop via 192.168.1.1 dev eth3 weight
ip route show table
192.168.2.0/ dev br-lan proto kernel scope link src 192.168.2.1
192.168.1.0/ dev eth1 proto kernel scope link src 192.168.1.247
Default via 192.168.1.1 dev eth1 proto static src 192.168.1.247
ip route show table
192.168.2.0/ dev br-lan proto kernel scope link src 192.168.2.1
192.168.1.0/ dev eth1 proto kernel scope link src 192.168.1.247
Default via 192.168.1.1 dev eth1 proto static src 192.168.1.248
ip route show table
192.168.2.0/ dev br-lan proto kernel scope link src 192.168.2.1
192.168.1.0/ dev eth1 proto kernel scope link src 192.168.1.247
Default via 192.168.1.1 dev eth1 proto static src 192.168.1.249

就是都会往eth1走,所以,把wan拔了肯定就有问题。回去检查了下multiwan,因为这个文件还是上一次的,只是根据这个帖子修改了failover_to,都改成balancer了,那么再看看这个帖子:http://www.openwrt.org.cn/bbs/forum.php?mod=viewthread&tid=14861&page=1&extra=#pid108970

里面multiwan的第一项中,我少了个option enabled 1.加上一试,还真是,我拿luci界面进行3个wan口的connect和stop。发现可以了,我把任意两个关了,还是可以上网。那就满足我的要求了,不过还是要研究一下luci界面机制。还是记录一下multiwan。

config 'multiwan' 'config'
option 'default_route' 'balancer'
# health_monitor below is defaulted to parallel, and can be set to
# serial to save system resources.
# option 'health_monitor' 'serial'
option 'enabled' '' config 'interface' 'wan'
option 'weight' ''
option 'health_interval' ''
option 'icmp_hosts' 'gateway'
# icmp_count is defaulted to , and can be increased to reduce
# false positives.
# option 'icmp_count' ''
option 'timeout' ''
option 'health_fail_retries' ''
option 'health_recovery_retries' ''
option 'failover_to' 'balancer'
option 'dns' 'auto' config 'interface' 'wan1'
option 'weight' ''
option 'health_interval' ''
option 'icmp_hosts' 'gateway'
option 'timeout' ''
option 'health_fail_retries' ''
option 'health_recovery_retries' ''
option 'failover_to' 'balancer'
option 'dns' 'auto' config 'interface' 'wan2'
option 'weight' ''
option 'health_interval' ''
option 'icmp_hosts' 'gateway'
option 'timeout' ''
option 'health_fail_retries' ''
option 'health_recovery_retries' ''
option 'failover_to' 'balancer'
option 'dns' 'auto' #config 'mwanfw'
# option 'src' '192.168.1.0/24'
# option 'dst' 'ftp.netlab7.com'
# option 'proto' 'tcp'
# option 'ports' ''
# option 'wanrule' 'lan' # VoIP traffic goes through wan
# config 'mwanfw'
# option 'src' '192.168.1.0/24'
# option 'proto' 'udp'
# option 'port_type' 'source-ports'
# option 'ports' '5060,16384:16482'
# option 'wanrule' 'wan' config 'mwanfw'
# option 'src' '192.168.0.3'
# option 'proto' 'icmp'
option 'wanrule' 'balancer' config 'mwanfw'
# option 'dst' 'www.whatismyip.com'
option 'wanrule' 'fastbalancer'

接下来还要把3g上网的也加进来试试。