I have two ipv6 addresses, one is from DHCPv6 (/128) and one from slaac (/64), with

nmcli connection modify iface ipv6.method "auto"
nmcli connection modify iface ipv6.addr-gen-mode "eui64"
nmcli connection modify iface ipv6.token "::dead:beef"

i made slaac address static, but i want to delete ipv6 from DHCPv6. Is it possible? In gui there's only "auto" and "auto, only dhcp" variants. I want "auto, only SLAAC" variant.

1 Answer 1


After a bunch of searching and experimentation it appears that the only setting that will accomplish this is ignore.

nmcli c mod enp10s0f4 ipv6.method ignore

This gave me only the SLAAC address and ignored DHCPv6 entirely. Unfortunately it also ignored the setting ipv6.addr-gen-mode and gave me an EUI64 address even though it was set to stable-privacy.

3: enp10s0f4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:24:27:88:13:67 brd ff:ff:ff:ff:ff:ff
    inet brd scope global dynamic noprefixroute enp10s0f4
       valid_lft 172789sec preferred_lft 172789sec
    inet6 2001:db8:8d7f:9760:224:27ff:fe88:1367/64 scope global dynamic mngtmpaddr 
       valid_lft 86398sec preferred_lft 86398sec
    inet6 fe80::224:27ff:fe88:1367/64 scope link 
       valid_lft forever preferred_lft forever

For my purposes this is acceptable but you'll have to decide for yourself whether you can accept trading one problem for another.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.