> Subject: RTL8822CE IPv6 autoconfiguration not working > > Hello, > > I just bought a new laptop with an Realtek RTL8822CE wireless card > buildin. I'm using NetworkManager with its internal DHCP client. I have > working IPv6 autoconfiguration support in my home network with 7 devices > with different operating systems. When I plug a USB network card into > the laptop IPv6 is configured sucessfully. But with the wireless card > IPv6 autoconfiguration doesn't work. When I manually add an IPv6 with > "sudo ip -6 addr add <address>/64 dev wlp1s0" I can ping IPv6 targets. > So there seems to be an bug either in the driver or maybe in > NetworkManager which prevents autoconfiguration from working, can > sombody look into this? I'm glad to help and provide further > informations or test things out. > > Kind Regards > Joshua > > > ip addr > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state > UNKNOWN > group default qlen 1000 > link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 > inet 127.0.0.1/8 scope host lo > valid_lft forever preferred_lft forever > inet6 ::1/128 scope host > valid_lft forever preferred_lft forever > 2: wlp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq > state UP > group default qlen 1000 > link/ether 40:5b:d8:1a:7a:a9 brd ff:ff:ff:ff:ff:ff > inet 192.168.178.25/24 brd 192.168.178.255 scope global dynamic > noprefixroute wlp1s0 > valid_lft 863798sec preferred_lft 863798sec > inet6 fe80::1b8b:8c3a:b569:a882/64 scope link noprefixroute > valid_lft forever preferred_lft forever > > lspci -v > 01:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device c822 > Subsystem: Electronics & Telecommunications RSH Device 1e25 > Flags: bus master, fast devsel, latency 0, IRQ 71 > I/O ports at 2000 [size=256] > Memory at c0700000 (64-bit, non-prefetchable) [size=64K] > Capabilities: <access denied> > Kernel driver in use: rtw_pci > Kernel modules: rtwpci > I am not sure if this is driver-related problem, but I think you can try to tcpdump and see where the autoconfiguration failed. And I am not an expert of IPv6, but if there is any issue with the driver I can help you. Yan-Hsuan
