首页 > V2EX > V2EX-v6 ra 前缀 lifetime 30 天
2022
01-15

V2EX-v6 ra 前缀 lifetime 30 天

vtoex0000000002:

tcpdump 路由器上抓包

tcpdump -i any -vvvn icmp6 and 'ip6[40] = 133 or ip6[40] = 134'

结果

02:59:52.120653 IP6 (class 0xe0, hlim 255, next-header ICMPv6 (58) payload length: 104) fe80::ce1a:faff:feee:7dc0 > fe80::x:x:x:x: [icmp6 sum ok] ICMP6, router advertisement, length 104
        hop limit 64, Flags [other stateful], pref medium, router lifetime 1800s, reachable time 0s, retrans time 0s
          source link-address option (1), length 8 (1): cc:1a:fa:ee:7d:c0
            0x0000:  cc1a faee 7dc0
          mtu option (5), length 8 (1):  1492
            0x0000:  0000 0000 05d4
          rdnss option (25), length 40 (5):  lifetime 4294967295s, addr: 2408:8000:aaaa:: addr: 2408:8888::8
            0x0000:  0000 ffff ffff 2408 8000 aaaa 0000 0000
            0x0010:  0000 0000 0000 2408 8888 0000 0000 0000
            0x0020:  0000 0000 0008
          prefix info option (3), length 32 (4): 2408:823c:805:4c8b::/64, Flags [onlink, auto], valid time 2592000s, pref. time 604800s
            0x0000:  40c0 0027 8d00 0009 3a80 0000 0000 2408
            0x0010:  823c 0805 4c8b 0000 0000 0000 0000

意味着 1 个月要重启一次路由?

from V2EX-最新主题 https://ift.tt/3GqO4QV
V2EX-v6 ra 前缀 lifetime 30 天 - 第1张  | 牛C网(NiuL.Net)
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