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changes for ipv6 handling

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This commit is contained in:
Florian Klemenz
2024-05-22 13:25:03 +00:00
parent fa2795cdb2
commit 7f3ea34aa3
2 changed files with 26 additions and 15 deletions
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30
ddns.sh
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@@ -3,7 +3,11 @@
# The DNS-server IP to use for checking the domain->IP mapping
# If the local system has it's own DNS server which maps IPs differently
# this should point to an external DNS like 1.1.1.1
NAMESERVER="1.1.1.1"
#NAMESERVER="1.1.1.1"
NAMESERVER="2606:4700:4700::1111"
IPV6_INTERFACE_ID="c03c:17ff:feeb:21e7"
IPV6_SUBNET_ID="01"
# ----- END CONFIG -------------------------------
@@ -32,31 +36,37 @@ if [ -f "${LAST_IP_FILE}" ]; then
fi
echo "Last UPDATE-IP -----------> ${LAST_IP}"
WAN_IP=$(${SCRIPTPATH}/easyBoxCtrl.sh wan ip 2>/dev/null)
echo "Current WAN-IP -----------> ${WAN_IP}"
#WAN_IP=$(${SCRIPTPATH}/easyBoxCtrl.sh wan ip 2>/dev/null)
#echo "Current WAN-IP -----------> ${WAN_IP}"
IPV6_PREFIX=$(${SCRIPTPATH}/easyBoxCtrl.sh wan ipv6prefix 2>/dev/null)
echo "Current IPv6-Prefix ------> ${IPV6_PREFIX}"
IPV6_IP="$(sed -r 's/(.*)00::.*/\1/' <<< ${IPV6_PREFIX})${IPV6_SUBNET_ID}:${IPV6_INTERFACE_ID}"
echo "Current IPv6-IP ----------> ${IPV6_IP}"
PROBE_DOMAIN="${DOMAIN}"
if [[ "${PROBE_DOMAIN}" == \*.* ]]; then
PROBE_DOMAIN="probe.${PROBE_DOMAIN:2}"
echo "Probe domain is ----------> ${PROBE_DOMAIN}"
fi
DNS_IP=$(dig @${NAMESERVER} +short ${PROBE_DOMAIN})
DNS_IP=$(dig @${NAMESERVER} +short ${PROBE_DOMAIN} AAAA)
echo "Current DNS-IP -----------> ${DNS_IP}"
if [ "${WAN_IP}" == "${DNS_IP}" ]; then
if [ "${IPV6_IP}" == "${DNS_IP}" ]; then
echo "IPs match - nothing to do."
exit 0
else
if [ "${LAST_IP}" == "${WAN_IP}" ]; then
echo "Last update IP matches WAN-IP - waiting for DNS to propagate changes."
if [ "${LAST_IP}" == "${IPV6_IP}" ]; then
echo "Last update IP matches current IP - waiting for DNS to propagate changes."
else
echo "IP mismatch - trying to update A-record(s)..."
$SCRIPTPATH/unitedDomainsCtrl.sh ${DOMAIN} ${WAN_IP}
echo "IP mismatch - trying to update AAAA-record(s)..."
$SCRIPTPATH/unitedDomainsCtrl.sh ${DOMAIN} ${IPV6_IP}
if [ "$?" == "0" ]; then
echo "Save UPDATE_IP."
echo "${WAN_IP}" > ${LAST_IP_FILE}
echo "${IPV6_IP}" > ${LAST_IP_FILE}
fi
fi
fi