11:54:10 
 tests= 
 _IN_VALIDITY_RPBL_BLOCKED=0. 
 autolearn= 
 f449- 
 org 
 From: tglaser@b1-systems.de 
  
 On Tue, 4 Nov 2025, Daniel Gröber wrote: 
  
 >I've added more hacks to make this work. See 
 >https://salsa.debian.org/debian/ifupdown/-/merge_re 
 quests/28/diffs?commit_id=acc9455eef698b4d51f08c3dfa87e31bdcc1147e 
  
 I did the following: 
  
 - check out commit acc9455eef698b4d51f08c3dfa87e31bdcc1147e 
 - apply the following patch: 
  
 diff --git a/debian/changelog b/debian/changelog 
 index 48b5ce8..dc5bd67 100644 
 --- a/debian/changelog 
 +++ b/debian/changelog 
 @@ -1,4 +1,4 @@ 
 -ifupdown (0.8.45) unstable; urgency=medium 
 +ifupdown (0.8.45~~exp3) unstable; urgency=medium 
  
    [ Kai Tetzlaff ] 
    * Stop inet (IPv4) stanza from erroniously starting dhcpcd on IPv6 
 diff --git a/inet.defn b/inet.defn 
 index 2e277d3..7259085 100644 
 --- a/inet.defn 
 +++ b/inet.defn 
 @@ -121,7 +121,7 @@ method dhcp 
      ip link set dev %iface% down \\ 
    if (iface_is_link()) 
  
 -    dhcpcd.sh --restore-syscltls \\ 
 +    dhcpcd.sh --restore-sysctls \\ 
          if (execable("dhcpcd") && !execable("dhclient")) 
  
  method bootp 
  
 - build, install, reboot 
 - up the interface again 
  
 This did not change anything, the IPv6 address was still wrong, 
 and I still got two link-local addresses, one of which is wrong. 
  
 Then I changed /etc/network/interfaces.d/foo to add… 
  
  iface foo inet6 auto 
  
 (as I use “sudo ifup wlan0=foo” because I switch between different 
 WLANs all the time), as you suggested I’ve got to migrate to, and 
 THE RESULT IS ACTUALLY EVEN WORSE: 
  
     inet 192.168.0.208/24 brd 192.168.0.255 scope global dynamic 
 noprefixroute wlan0 
        valid_lft 1209574sec preferred_lft 1058374sec 
     inet6 2001:470:1f15:10c:7922:456f:9923:7a9e/64 scope global dynamic 
 mngtmpaddr noprefixroute 
        valid_lft 2591970sec preferred_lft 604770sec 
     inet6 fe80::d658:47f3:7d84:b5e/64 scope link 
        valid_lft forever preferred_lft forever 
  
 Now I got the same broken global address and ONLY THE BROKEN link-local 
 address; the correct one (EUI64-based) has gone away. 
  
 bye, 
 //Thorsten 
 -- 
 Thorsten Glaser 
 Linux / Unix Developer 
 Tel.: +49 160 91168501 
 E-Mail: tglaser@b1-systems.de 
  
 B1 Systems GmbH 
 Osterfeldstraße 7 / 85088 Vohburg / https://www.b1-systems.de/ 
 GF: Ralph Dehner / Unternehmenssitz: Vohburg / AG: Ingolstadt, HRB 3537 
  
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