我看到有关Cisco ASA（在本例中为5505）是否可以通过PPPoE连接使用IPv6的许多冲突信息。
我看到了Cisco的官方文档，使它看起来很容易，但是我看到很多论坛帖子都说它不起作用。
ISP要求我们为PPPoE链接使用自动配置的地址，因为它们会为链接本身分配动态的IPv6地址，并为我们提供静态/56的前缀委派。
这可能吗？
我们的提供者是节点间；并且提供了在800系列路由器上启用的本指南。sh ver我们的ASA 的开始是：
Cisco Adaptive Security Appliance Software Version 9.1(1)
Device Manager Version 7.1(2)102
Hardware: ASA5505, 512 MB RAM, CPU Geode 500 MHz,
Internal ATA Compact Flash, 128MB
BIOS Flash M50FW016 @ 0xfff00000, 2048KB
Encryption hardware device : Cisco ASA-5505 on-board accelerator (revision 0x0)
Boot microcode : CN1000-MC-BOOT-2.00
SSL/IKE microcode : CNLite-MC-SSLm-PLUS-2.03
IPSec microcode : CNlite-MC-IPSECm-MAIN-2.08
Number of accelerators: 1
在我尝试过的内容上：我尝试为连接启用自动配置，我将PD添加到了ASA中，但是由于实际的PPPoE链路需要动态IP，所以我无法设置静态IP。无论如何，我还是尝试过（通过使用[delegation]FF::1/128哪个随机论坛查询似乎是Internode的常见配置），但是从内存来看，ASA不允许我仅将路由分配给接口，它需要下一跳，而我没有。
edge(config-if)# show running-config interface vlan2
!
interface Vlan2
nameif outside
security-level 0
pppoe client vpdn group Internode
ip address pppoe setroute
ipv6 address autoconfig
ipv6 enable
ipv6 nd prefix 2001:44b8:310c:9f00::/56 infinite infinite
ipv6 nd managed-config-flag
ipv6 nd other-config-flag
vpn(config-if)# show ip
System IP Addresses:
Interface Name IP address Subnet mask Method
Vlan1 inside 192.168.161.17 255.255.255.0 CONFIG
Vlan2 outside 59.167.172.177 255.255.255.255 manual
Vlan3 dmz unassigned unassigned DHCP
Vlan5 Guest 192.168.64.17 255.255.255.0 manual
Current IP Addresses:
Interface Name IP address Subnet mask Method
Vlan1 inside 192.168.161.17 255.255.255.0 CONFIG
Vlan2 outside 59.167.172.177 255.255.255.255 manual
Vlan3 dmz unassigned unassigned DHCP
Vlan5 Guest 192.168.64.17 255.255.255.0 manual
vpn(config-if)# show ipv6 interface outside
outside is up, line protocol is up
IPv6 is enabled, link-local address is fe80::462b:3ff:fe7a:d5
No global unicast address is configured
Joined group address(es):
ff02::1:ff00:1
ff02::1:ff7a:d5
ff02::2
ff02::1
ICMP error messages limited to one every 100 milliseconds
ICMP redirects are enabled
ND DAD is enabled, number of DAD attempts: 1
ND reachable time is 30000 milliseconds
ND advertised reachable time is 0 milliseconds
ND advertised retransmit interval is 1000 milliseconds
ND router advertisements are sent every 200 seconds
ND router advertisements live for 1800 seconds
Hosts use DHCP to obtain routable addresses.
Hosts use DHCP to obtain other configuration.