This issue is not limited to Realtek as it occurs on my system with an
Intel ethernet controller (see
https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1586528/comments/9).
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection (2) I218-V
DeviceName: Onboard LAN
Subsystem: ASUSTeK Computer Inc. Ethernet Connection (2) I218-V
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 28
Region 0: Memory at dfd00000 (32-bit, non-prefetchable) [size=128K]
Region 1: Memory at dfd3c000 (32-bit, non-prefetchable) [size=4K]
Region 2: I/O ports at f080 [size=32]
Capabilities: <access denied>
Kernel driver in use: e1000e
Kernel modules: e1000e
I don't have a workaround but the following is what I use to help recover. It
pings my gateway periodically, and if it can't it attempts to restart
networking.
In /etc/crontab:
# check networking
*/10 * * * * root /usr/local/bin/check_reset_network.sh >>
/var/log/check_reset_network.log
/usr/local/bin/check_reset_network.sh:
---[start]-----
#!/bin/bash
echo "`date` $0 starting"
gw=192.168.1.254
echo "Trying to ping gw $gw"
out=$(ping -c 5 $gw 2>&1)
if [ $? -eq 0 ]; then
echo "Success"
else
echo "Failed to ping gw $gw"
echo "Trying again in 20s"
sleep 20
out=$(ping -c 5 $gw 2>&1)
if [ $? -ne 0 ]; then
echo "Failed to ping gw $gw"
echo "Restarting networking"
sudo service network-manager restart
echo "Waiting 20s to recheck network"
sleep 20
out=$(ping -c 5 $gw 2>&1)
if [ $? -eq 0 ]; then
echo "Success; sending mail"
echo "Restarted networking" | mail your_email_addr
else
echo "Failed. You're fucked."
fi
fi
fi
echo "Checking for default route"
out=$(/sbin/ip route | egrep '^default')
if [ $? -eq 0 ]; then
echo "Success"
else
echo "Failed to find default route. Adding it."
/sbin/route add default gw 192.168.1.254
if [ $? -eq 0 ]; then
echo "Success; sending mail"
echo "Added default route" | mail your_email_addr
else
echo "Failed. You're fucked."
fi
fi
echo "`date` $0 done"
---[end]-----
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https://bugs.launchpad.net/bugs/1586528
Title:
Avahi-daemon withdraws address record
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