https://bugs.kde.org/show_bug.cgi?id=447402
Bug ID: 447402
Summary: Using ethernet connection plasma networking doesn't
setup default route to gateway
Product: neon
Version: unspecified
Platform: Neon Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Packages User Edition
Assignee: neon-b...@kde.org
Reporter: nick.craig....@gmail.com
CC: j...@jriddell.org, neon-b...@kde.org, sit...@kde.org
Target Milestone: ---
SUMMARY
***
This is a problem you won't see if you only use wifi, however if you use
ethernet via the RJ45 connector then maybe you will have this problem.
If you plug into a network using an ethernet wired connection (with WIFI
disabled) and have DHCP setup in the plasma network configuration. When the
system obtains it's IP address it fails to setup the default gateway so no
internet access is available. If you type route add default gw 192.168.0.1
enp2s0 then everything then works.
How come the gateway is no longer setup in the routing table automatically when
hot plugging an ethernet cable?
WIFI works fine.
routing table after ethernet cable plugged in.
route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
link-local 0.0.0.0 255.255.0.0 U 1000 0 0 virbr0
192.168.1.0 0.0.0.0 255.255.255.0 U 100 0 0 enp2s0
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
Below is the routing table for WIFI showing the extra line starting with
'default'
route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default _gateway 0.0.0.0 UG 600 0 0 wlp3s0
link-local 0.0.0.0 255.255.0.0 U 1000 0 0 virbr0
192.168.1.0 0.0.0.0 255.255.255.0 U 600 0 0 wlp3s0
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
***
STEPS TO REPRODUCE
100% reproducible on my laptop
OBSERVED RESULT
No default gateway setup in routing table
EXPECTED RESULT
default route should be added when ethernet cable used.
SOFTWARE/OS VERSIONS
Operating System: KDE neon 5.23
KDE Plasma Version: 5.23.4
KDE Frameworks Version: 5.89.0
Qt Version: 5.15.3
Kernel Version: 5.11.0-43-generic (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-2670QM CPU @ 2.20GHz
Memory: 15.6 GiB of RAM
Graphics Processor: GeForce GTX 570M/PCIe/SSE2
ADDITIONAL INFORMATION
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