
356 Chapter 4—DHCPv6
1922 dhcp6_set_timer(&tv, ifp->timer);
1923 }
1924 } else if (optinfo->refreshtime != DH6OPT_REFRESHTIME_UNDEF) {
1925 /*
1926 * draft-ietf-dhc-lifetime-02 clarifies that refresh time
1927 * is only used for information-request and reply exchanges.
1928 */
1929 dprintf(LOG_INFO, FNAME,
1930 "unexpected information refresh time option (ignored)");
1931 }
1932 #endif /* USE_DH6OPT_REFRESHTIME */
dhcp6c.c
1895–1923 If this Reply message is a response to an Information-Request message and it
contains the Information Refresh Time option, a separate timer with the specified timeout
value is set up so that the client can resend the Information-Request ...