F10 recent network problem

Dennis Mattingly dennismattinglyzzark at gmail.com
Fri Apr 24 20:19:27 UTC 2009

>A few other things which might be relevant:
>Have you tried to disable the firewall and restart the network:
>[as root]
>$ service iptables stop
>$ service network stop
>$ service NetworkManager restart
>..if that doesn't help then post the output from
>[as root]
>$ route -n
>$ ethtool eth0
>$ ifconfig eth0
>$ ping
>$ chkconfig --list | grep [35]:on
>..which may shed some light on what's going on.

Yes, refreshing the Firewall did help.
Now my eth0 (and NetworkManager) start successfully.

However, my route table is empty.
So still no internet with my router / DHCP.


Fresh-boot the computer, while attached to router -> internet

[root at localhost ~]# service NetworkManager status
NetworkManager (pid  1938) is running...

[root at localhost ~]# service iptables stop
iptables: Flushing firewall rules:                         [  OK  ]
iptables: Setting chains to policy ACCEPT: filter          [  OK  ]
iptables: Unloading modules:                               [  OK  ]

[root at localhost ~]# service network stop
Shutting down interface eth0:                              [  OK  ]
Shutting down loopback interface:                          [  OK  ]

[root at localhost ~]# service NetworkManager stop
Stopping NetworkManager daemon:                            [  OK  ]

[root at localhost ~]# service NetworkManager start
Setting network parameters...                              [  OK  ]
Starting NetworkManager daemon:                            [  OK  ]


eth0 and NM came-up just fine (this time).

Now that eth0 is running, I see that my ROUTE table is empty.

[root at localhost ~]# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use

[root at localhost ~]# ping -c 5
PING ( 56(84) bytes of data.
64 bytes from icmp_seq=1 ttl=64 time=0.063 ms
64 bytes from icmp_seq=2 ttl=64 time=0.055 ms
64 bytes from icmp_seq=3 ttl=64 time=0.057 ms
64 bytes from icmp_seq=4 ttl=64 time=0.057 ms
64 bytes from icmp_seq=5 ttl=64 time=0.056 ms

--- ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3999ms
rtt min/avg/max/mdev = 0.055/0.057/0.063/0.008 ms

Things seem better since I flushed my firewall rules, but
any advice for routing tables would be appreciated.

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