ipv6环境中,因为我设备收到的DHCPv6 advertise报文中IA_PD字段返回NoPrefixAvail,导致我现在wan口能拿到全局路由地址,br-lan拿不到。我手动为br-lan添加了一个2001开头的地址,lan侧下挂设备也拿到地址了,但是下挂设备能ping通eth1也就是wan口的ipv6地址,ping不通Google的ipv6地址,路由器能ping通Google的ipv6地址。要怎么做才能使br-lan下挂设备能访问外网。
设备信息如下
br-lan inet6 addr: 2001:db8:a0f0:3e30:3ac8:72f3:11c8:425a/64 Scope:Global
inet6 addr: fe80::3ac8:72f3:11c8:425a/64 Scope:Link
eth1 inet addr:10.8.4.176 Bcast:10.8.4.255 Mask:255.255.255.0
inet6 addr: 2002:f2c4:15a2:3122::51/128 Scope:Global
inet6 addr: fe80::3ac8:72f3:11c8:425b/64 Scope:Link
inet6 addr: 2002:f2c4:15a2:3122:3ac8:72f3:11c8:425b/64 Scope:Global
default from 2002:f2c4:15a2:3122::51 via fe80::23c:24d1:fd29:fe04 dev eth1 proto static metric 512 pref medium
default from 2002:f2c4:15a2:3122::/64 via fe80::23c:24d1:fd29:fe04 dev eth1 proto static metric 512 pref medium
2002:f2c4:15a2:3122::/64 dev eth1 proto static metric 256 pref medium
unreachable 2002:f2c4:15a2:3122::/64 dev lo proto static metric 2147483647 pref medium
2001:db8:a0f0:3e30::/64 dev br-lan proto static metric 1024 pref medium
unreachable 2001:db8:a0f0:3e30::/48 dev lo proto static metric 2147483647 pref medium