Search Results for edge route x 设置 ipv6

看到说北京联通的pppoe也开始启用ipv6了，在EdgeRouter Lite上开了一下设置。联通给了个 /56 的prefix。我的eth1接了上行，pppoe拨号，eth0是lan。

set interfaces ethernet eth1 pppoe 0 ipv6 address autoconf
set interfaces ethernet eth1 pppoe 0 ipv6 enable
set interfaces ethernet eth1 pppoe 0 ipv6 dup-addr-detect-transmits 1 

set interfaces ethernet eth1 pppoe 0 dhcpv6-pd pd 0 interface eth0 service slaac
set interfaces ethernet eth1 pppoe 0 dhcpv6-pd pd 0 prefix-length /56

set interfaces ethernet eth1 pppoe 0 ipv6 address autoconf

set interfaces ethernet eth1 pppoe 0 ipv6 enable

set interfaces ethernet eth1 pppoe 0 ipv6 dup-addr-detect-transmits 1

set interfaces ethernet eth1 pppoe 0 dhcpv6-pd pd 0 interface eth0 service slaac

set interfaces ethernet eth1 pppoe 0 dhcpv6-pd pd 0 prefix-length /56

lan

interface {
  ethernet eth0 {
    ipv6 {
      router-advert {
          cur-hop-limit 64
          link-mtu 0
          managed-flag false
          max-interval 600
          other-config-flag false
          prefix ::/64 {
              autonomous-flag true
              on-link-flag true
              valid-lifetime 2592000
          }
          reachable-time 0
          retrans-timer 0
          send-advert false
      }
    }
  }
}

interface {

ethernet eth0 {

ipv6 {

router-advert {

cur-hop-limit 64

link-mtu 0

managed-flag false

max-interval 600

other-config-flag false

prefix ::/64 {

autonomous-flag true

on-link-flag true

valid-lifetime 2592000

}

reachable-time 0

retrans-timer 0

send-advert false

}

记住配置防火墙 Incoming search terms:ipv6 pppoe client downloadblowla3certainlycgodustj88edge route x 设置 ipv6EdgeRouter ipv6exclaimedd54importance7zpmysteriousflcrecordkpfreportvixstraightkhq北京联通IPv6 PD联通 IPV6 PDLink to this post!

SNIProxy Bind Outgoing Interface

这篇纯技术，没兴趣的别看。关于需求最早试图用路由器自带的功能去实现sni检测＋自动路由，结果发现edgerouter的dpi没开放太多资料。再又试图用squid去实现正向代理，绑定上行网络地址或者设备，虽然edgerouter自带squid以实现transparent proxy，但是自带版本SNI检测不支持（新版不知），绑定upstream的地址或者设备也没看到有人说支持。又考虑过haproxy，但是这个必须自己写backend（似乎可以haproxy + squid，没去实践过，至少haproxy的acl要写好长；而且这个组合里haproxy都可以直接被跳过，反正有DNAT也有DNS劫持）。从上边的方案思考过程，我觉得应该能看懂我想要什么。关于实现选用sniproxy，也算偶然。虽然之前vps上实验sni检测＋代理的时候，大概看了眼（但是最后还是选了haproxy）。不过最后选这个的重要原因就是好改 XD 官方github在https://github.com/dlundquist/sniproxy。先考虑的方案是，通过socket上联时绑定客户端IP。本身支持上行设置请求的源地址，大致实现代码在 connection.c：

    if (con->listener->source_address) {
        int on = 1;
        setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));

        int result = 0;
        int tries = 5;
        do {
            result = bind(sockfd,
                    address_sa(con->listener->source_address),
                    address_sa_len(con->listener->source_address));
        } while (tries-- > 0
                && result < 0
                && errno == EADDRINUSE
                && address_port(con->listener->source_address) == 0);
        if (result < 0) {
            err("bind failed: %s", strerror(errno));
            close(sockfd);
            abort_connection(con);
            return;
        }
    }

if (con->listener->source_address) {

int on = 1;

setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));

int result = 0;

int tries = 5;

do {

result = bind(sockfd,

address_sa(con->listener->source_address),

address_sa_len(con->listener->source_address));

} while (tries-- > 0

&& result < 0

&& errno == EADDRINUSE

&& address_port(con->listener->source_address) == 0);

if (result < 0) {

err("bind failed: %s", strerror(errno));

close(sockfd);

abort_connection(con);

return;

}

但是经过试验，配置source address后，数据包还是会根据路由上的路由表跳到域名解析IP该走的那个网络。所以，这个方案是不满足我的要求的。如果绑定IP不行，那就试试绑定设备。绑定IP的方案的可行性，很早以前跟同学Windows下讨论一个客户端设计的时候验证过；但是绑定设备的，完全没搞过。现查。然后查到了 SO_BINDTODEVICE。 SO_BINDTODEVICE Bind this socket to a particular device like “eth0”, as specified in the passed interface name. If the name is an empty string or the option length is zero, […]