0cf1fe8888
Zero lifetime in RA is special, and we should not assign possibly very short lifetime addresses or friends. This should not change anything at least now, preparation for later commits. Note, DHCPv4 and v6 code also uses it, but sd-dhcp-client and sd-dhcp6-client already filtered messages with zero lifetime. Hence, the change should not affect DHCP code.
System and Service Manager
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