13:57:40 
 tests= 
 RCVD_IN_VALIDITY_SAFE_ 
 ae10- 
 org 
 From: tglaser@b1-systems.de 
  
 Dixi quod… 
  
 >On Tue, 4 Nov 2025, Daniel Gröber wrote: 
  
 >>Hmm. I think I know whats going on but can you post output for: 
  
 So, I’ve downgraded to 0.8.44, rebooted and fired up the network 
 but kept the… 
  
  iface foo inet dhcp 
   wireless-power off 
   wireless-essid myssid 
   wpa-ssid myssid 
   wpa-psk mypass 
   
  iface foo inet6 auto 
  
 … change. 
  
 tg@tgb1:~ $ ps fax | grep dhcpcd 
  3080 ?        S      0:00 dhcpcd: wlan0 [ip4] [ip6] 
  3081 ?        S      0:00  \\_ dhcpcd: [privileged proxy] wlan0 [ip4] [ip6] 
  3102 ?        S      0:00  |   \\_ dhcpcd: [BPF ARP] wlan0 192.168.0.208 
  3104 ?        S      0:00  |   \\_ dhcpcd: [DHCP6 proxy] 
 fe80::d658:47f3:7d84:b5e 
  3106 ?        S      0:00  |   \\_ dhcpcd: [DHCP6 proxy] 
 2001:470:1f15:10c:7922:456f:9923:7a9e 
  3108 ?        S      0:00  |   \\_ dhcpcd: [BOOTP proxy] 192.168.0.208 
  3238 ?        S      0:00  |   \\_ dhcpcd: [DHCP6 proxy] 
 2001:470:1f15:10c:becd:99ff:fe00:3d18 
  3082 ?        S      0:00  \\_ dhcpcd: [network proxy] wlan0 [ip4] [ip6] 
  3083 ?        S      0:00  \\_ dhcpcd: [control proxy] wlan0 [ip4] [ip6] 
  4190 pts/5    S+     0:00              \\_ grep dhcpcd 
 tg@tgb1:~ $ cat /proc/sys/net/ipv6/conf/wlan0/accept_ra 
 2 
 tg@tgb1:~ $ cat /proc/sys/net/ipv6/conf/wlan0/autoconf 
 1 
  
 I have this interesting result though: 
  
 3: wlan0:  mtu 1500 qdisc noqueue state UP 
 group default qlen 1000 
     link/ether bc:cd:99:00:3d:18 brd ff:ff:ff:ff:ff:ff 
     altname wlp2s0 
     altname wlxbccd99003d18 
     inet 192.168.0.208/24 brd 192.168.0.255 scope global dynamic 
 noprefixroute wlan0 
        valid_lft 1209586sec preferred_lft 1058386sec 
     inet6 2001:470:1f15:10c:becd:99ff:fe00:3d18/64 scope global dynamic 
 mngtmpaddr proto kernel_ra 
        valid_lft 2591990sec preferred_lft 604790sec 
     inet6 2001:470:1f15:10c:7922:456f:9923:7a9e/64 scope global dynamic 
 mngtmpaddr noprefixroute 
        valid_lft 2591990sec preferred_lft 604790sec 
     inet6 fe80::d658:47f3:7d84:b5e/64 scope link 
        valid_lft forever preferred_lft forever 
  
 Here, I have one (amount correct) link-local address (address incorrect) 
 but two (amount incorrect) global addresses, one of which is correct. 
 I can ssh into the system using the correct EUI64 global address. 
  
 For comparison, here’s a bullseye system in the same LAN: 
  
 3: wlan0:  mtu 1500 qdisc mq state UP 
 group default qlen 1000 
     link/ether 00:1d:e0:77:c1:7b brd ff:ff:ff:ff:ff:ff 
     altname wlp3s0 
     altname wls3 
     inet 192.168.0.192/24 brd 192.168.0.255 scope global dynamic wlan0 
        valid_lft 1201822sec preferred_lft 1201822sec 
     inet6 2001:470:1f15:10c:21d:e0ff:fe77:c17b/64 scope global dynamic 
 mngtmpaddr 
        valid_lft 2591916sec preferred_lft 604716sec 
     inet6 fe80::21d:e0ff:fe77:c17b/64 scope link 
        valid_lft forever preferred_lft forever 
  
 All addresses and amounts thereof are as expected. 
  
 bye, 
 //Thorsten 
 -- 
 Thorsten Glaser 
 Linux / Unix Developer 
 Tel.: +49 160 91168501 
 E-Mail: tglaser@b1-systems.de 
  
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