On 02/02/2015 12:09 PM, Jarmo Hurri wrote:
Greetings.
Something changed in our work network configuration or my Linux laptop around Christmas. I now have serious network issues.
The following happens all the time.
- I am unable to contact a server
http://en.wikipedia.org/ Browser says ERR_ADDRESS_UNREACHABLE
- Name server works just fine
[jarmo@localhost tmp]$ dig en.wikipedia.org +short 91.198.174.192
- traceroute shows issues
[jarmo@localhost tmp]$ traceroute en.wikipedia.org traceroute to en.wikipedia.org (91.198.174.192), 30 hops max, 60 byte packets 1 localhost.localdomain (172.16.43.148) 3004.217 ms !H 3004.195 ms !H 3004.187 ms !H
- The problem is solved temporarily by flushing the route cache
[jarmo@localhost tmp]$ ip ro get 91.198.174.192 91.198.174.192 via 91.198.174.192 dev em1 src 172.16.43.148 cache <redirected> [jarmo@localhost tmp]$ su -c "ip route flush cache" [jarmo@localhost tmp]$ ip ro get 91.198.174.192 91.198.174.192 via 172.16.40.1 dev em1 src 172.16.43.148 cache
Now the address works ok for a while, but then I get connection problems again quite quickly.
I have no idea whether the problem is in my laptop or in the network. I have no problems in other networks. On the other hand, Windows machine in this network work without issues.
Any ideas? I am running an up-to-date Fedora 20 with
[jarmo@localhost tmp]$ uname -a Linux localhost.localdomain 3.17.8-200.fc20.x86_64 #1 SMP Thu Jan 8 23:26:57 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
[jarmo@localhost tmp]$ yum info iproute Loaded plugins: langpacks, refresh-packagekit Installed Packages Name : iproute Arch : x86_64 Version : 3.14.0 Release : 2.fc20
Jarmo
Duplicate IP Addresses somewhere in your network?
suomi