我最近注意到 4 个 Unifi AP 中有 3 个一直达到 100% CPU 使用率。当我跳上网络并进行 Wireshark 捕获时,我注意到在几秒钟内发送了 1000 个这些数据包。
11.013029000 fe80::ca5b:76ff:fe64:143a ff02::1:ff76:6414 ICMPv6 86 Multicast Listener Report
Internet Protocol Version 6, Src: fe80::ca5b:76ff:fe64:143a (fe80::ca5b:76ff:fe64:143a), Dst: ff02::1:ff76:6414 (ff02::1:ff76:6414)
Payload length: 32
Next header: IPv6 hop-by-hop option (0)
Hop limit: 1
Source: fe80::ca5b:76ff:fe64:143a (fe80::ca5b:76ff:fe64:143a)
Source SA MAC: c8:5b:76:64:14:3a (c8:5b:76:64:14:3a)
Destination: ff02::1:ff76:6414 (ff02::1:ff76:6414)
Source GeoIP: Unknown
Destination GeoIP: Unknown
Hop-by-Hop Option
Next header: ICMPv6 (58)
Length: 0 (8 bytes)
IPv6 Option (Router Alert)
Type: Router Alert (5)
Length: 2
Router Alert: MLD (0)
IPv6 Option (PadN)
Type: PadN (1)
Length: 0
PadN: <MISSING>
Internet Control Message Protocol v6
Type: Multicast Listener Report (131)
Code: 0
Checksum: 0x6513 [correct]
Maximum Response Delay [ms]: 0
Reserved: 0000
Multicast Address: ff02::1:ff76:6414 (ff02::1:ff76:6414)
我无法 ping 或解析源或目标 IPv6。我试过运行:
arp -a | findstr <MAC>
看看我的 arp 缓存中是否有 MAC,但我什么也没得到。我在办公室里四处游荡,连接到每个专门运行相同命令的 AP。
我已经读到这些消息可能是 NIC 死机的结果。但我不确定如何验证/验证或者现在从哪里开始。
有没有人以前见过这种行为并解决了它?这些消息是什么,我该如何缓解它们?我对此非常着迷,但我也希望我的 AP 停止崩溃!:P