Looks like fun, or a network that goes down for some unknown reason (or
seen has down by the driver, or libnl fails to get messages, etc).
Since this bug report was opened a long while ago and I suspect the
issue has since been correctly, I'm closing this bug as Invalid. Feel
free to reopen (or ping me on IRC "cyphermox") if this is still
reproducible.
** Changed in: network-manager (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/279647
Title:
odd routing behaviour
Status in “network-manager” package in Ubuntu:
Invalid
Bug description:
Binary package hint: network-manager
I have a wired interface and a wireless interface, which both connect through
to the same network (although incorrect behaviour has been observed on a
machine with just a wired interface).
It seems that in some situations NM ends up with a routing table that has a
host route for the router and a default route, but no network route. Or the
network route may be on a different interface.
Attached is a syslog snippet which shows network manager connecting
correctly and producing a routing table of:
Destination Gateway Genmask Flags Metric Ref Use Iface
10.45.43.0 0.0.0.0 255.255.255.0 U 1 0 0 eth1
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eth1
0.0.0.0 10.45.43.1 0.0.0.0 UG 0 0 0 eth1
At around 15:09 it then changes the routing table to having
10.45.43.1/255.255.255.255 via eth1, 0.0.0.0/0.0.0.0 via 10.45.43.1
and 10.45.43.0/255.255.255.0 via wlan0.
On the machine which had no wireless, this left it with just routes
for 10.45.43.1 and 0.0.0.0 - traffic for 10.45.43.0/24 would go via
the router (which is blocked, so no LAN traffic was able to flow, so
no DNS lookups to .2, printing to .5, etc)
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