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Handle more than one default gateway in debug script

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Signed-off-by: Christian König <ckoenig@posteo.de>
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Christian König 2022-09-22 22:33:11 +02:00
parent 4f4dfe3ac0
commit bb57a9e616
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1 changed files with 7 additions and 6 deletions
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advanced/Scripts/piholeDebug.sh
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@ -680,17 +680,18 @@ ping_gateway() {
# Check if we are using IPv4 or IPv6
# Find the default gateway using IPv4 or IPv6
local gateway
gateway="$(ip -"${protocol}" route | grep default | grep "${PIHOLE_INTERFACE}" | cut -d ' ' -f 3)"
mapfile -t gateway < <(ip -"${protocol}" route | grep default | grep "${PIHOLE_INTERFACE}" | cut -d ' ' -f 3)
# If the gateway variable has a value (meaning a gateway was found),
if [[ -n "${gateway}" ]]; then
log_write "${INFO} Default IPv${protocol} gateway: ${gateway}"
# If the gateway array is not empty (meaning a gateway was found),
if [[ ${#gateway[@]} -ne 0 ]]; then
log_write "${INFO} Default IPv${protocol} gateway(s):"
for i in "${gateway[@]}"; do log_write " $i"; done
# Let the user know we will ping the gateway for a response
log_write " * Pinging ${gateway}..."
log_write " * Pinging first gateway ${gateway[0]}..."
# Try to quietly ping the gateway 3 times, with a timeout of 3 seconds, using numeric output only,
# on the pihole interface, and tail the last three lines of the output
# If pinging the gateway is not successful,
if ! ${cmd} -c 1 -W 2 -n "${gateway}" -I "${PIHOLE_INTERFACE}" >/dev/null; then
if ! ${cmd} -c 1 -W 2 -n "${gateway[0]}" -I "${PIHOLE_INTERFACE}" >/dev/null; then
# let the user know
log_write "${CROSS} ${COL_RED}Gateway did not respond.${COL_NC} ($FAQ_GATEWAY)\\n"
# and return an error code