配置IPv6遇到问题，请帮忙看下！

ports

服务器的IPv6地址不知道怎么突然连不上了。
郁闷ing。。。。。。

状况：

对tunnel device(gif0) ping可以看到对方的tunnel device

1. 
   
2.     * [root@monster ~]# /sbin/ping6 -c 4 -I gif0 ff02::1
   
3.       PING6(56=40+8+8 bytes) fe80::213:d3ff:fe3e:ee10%gif0 --> ff02::1
   
4.       16 bytes from fe80::213:d3ff:fe3e:ee10%gif0, icmp_seq=0 hlim=64 time=0.204 ms
   
5.       16 bytes from fe80::20c:76ff:fe08:5061%gif0, icmp_seq=0 hlim=64 time=14.751 ms(DUP!)
   
6.       16 bytes from fe80::213:d3ff:fe3e:ee10%gif0, icmp_seq=1 hlim=64 time=0.096 ms
   
7.       16 bytes from fe80::20c:76ff:fe08:5061%gif0, icmp_seq=1 hlim=64 time=14.653 ms(DUP!)
   
8.       16 bytes from fe80::213:d3ff:fe3e:ee10%gif0, icmp_seq=2 hlim=64 time=0.097 ms
   
9.       16 bytes from fe80::20c:76ff:fe08:5061%gif0, icmp_seq=2 hlim=64 time=14.990 ms(DUP!)
   
10.       16 bytes from fe80::213:d3ff:fe3e:ee10%gif0, icmp_seq=3 hlim=64 time=0.098 ms
    
11. 
    
12.       --- ff02::1 ping6 statistics ---
    
13.       4 packets transmitted, 4 packets received, +3 duplicates, 0.0% packet loss
    
14.       round-trip min/avg/max/std-dev = 0.096/6.413/14.990/7.263 ms
    
15. 
    
16.     * 其中fe80::20c:76ff:fe08:5061%gif0是对方的linklocal地址
    
17.     * fe80::213:d3ff:fe3e:ee10%gif0为本地gif0的tunnel地址
    

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从外部向服务器ping，并在服务器上截取gif0的tcpdump，
外部当然是ping不通，服务器上抓不到icmp6的数据。

1. 
   
2.     * [admin@maov3 ~]$ ping6 -c 4 2001:218:4b8:1000::1
   
3.       PING 2001:218:4b8:1000::1(2001:218:4b8:1000::1) 56 data bytes
   
4.       From 2001:218:4b8:0:250:8bff:feb9:58b1 icmp_seq=1 Destination unreachable: Address unreachable
   
5.       From 2001:218:4b8:0:250:8bff:feb9:58b1 icmp_seq=2 Destination unreachable: Address unreachable
   
6.       From 2001:218:4b8:0:250:8bff:feb9:58b1 icmp_seq=3 Destination unreachable: Address unreachable
   
7.       From 2001:218:4b8:0:250:8bff:feb9:58b1 icmp_seq=4 Destination unreachable: Address unreachable
   
8. 
   
9.       --- 2001:218:4b8:1000::1 ping statistics ---
   
10.       4 packets transmitted, 0 received, +4 errors, 100% packet loss, time 3009ms
    
11. 
    
12.     * [root@monster ~]# tcpdump -i gif0
    
13.       tcpdump: WARNING: gif0: no IPv4 address assigned
    
14.       tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
    
15.       listening on gif0, link-type NULL (BSD loopback), capture size 96 bytes
    
16.       17:13:40.402025 IP6 fe80::20c:76ff:fe08:5061.ripng > ff02::9.ripng:  ripng-resp 2: 2001:218:4b8:1::/64 (2) 2001:218:4b8::/64 (1)
    
17.       ^C
    

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ports

自己顶一下

剑心通明

没有用过ipv6啊