Re: Troubleshooting connection loss (novice question)
- From: Allen Weiner <alweiner7@xxxxxxxxxxx>
- Date: Tue, 30 Oct 2007 19:02:03 GMT
Bill Marcum wrote:
On 2007-10-29, Allen Weiner <alweiner7@xxxxxxxxxxx> wrote:I run Fedora 7 and use Verizon DSL. My modem is a Westell 6100-E90 modem/router. My DSL connection usually runs well, but about once every seven to ten days I lose my Internet connection. I can regain my connection by rebooting Fedora. I've not been able to regain my Internet connection without a reboot (e.g. "service network restart" hangs).Have you browsed the modem's web interface? If it isn't at http://192.168.1.1 try http://192.168.1.254
I'm trying to troubleshoot this loss of connection. I've collected a bunch of troubleshooting info. I'd like to know what is the next troubleshooting step.
Following is what I've got so far:
Modem status: the DSL LED is solid green. The Internet and Ethernet LED's are blinking green. I interpret this as meaning that I've not lost sync, and that the modem is actually transmitting data to the Internet.
NIC LEDs: NIC is Intel Pro/100 M with two LEDs. The LEDs are both lit. The 100Mb LED is solid green. The LINK/ACT LED is blinking green. The status of these LEDs is the same as when I have an Internet connection.
GKrellm: The eth0 monitor shows zero activity. When I have an Internet connection, the eth0 monitor shows continuous activity, even when I'm not accessing anything.
KNetstats monitor: (analogous to the Gnome desktop applet). This shows I'm disconnected. The icon has a red circle containing a white "X".
dmesg: NETDEV WATCHDOG: eth0: transmit timed out
ifconfig: eth0 UP, BROADCAST, and MULTICAST, but *not* RUNNING. IP address 192.168.1.47
ethtool eth0: link detected: yes
ping 192.168.1.47 OK
ping 192.168.1.1 Destination host unreachable. (I don't know if there is any point in pinging 192.168.1.1)
What troubleshooting step should I do next?
Try these commands:
route -n
cat /etc/resolv.conf
My modem interface is at http://192.168.1.1. When I lose my Internet connection, I've tried to access the modem's web interface using Firefox. The access failed. (That's the reason I also tried ping 192.168.1.1, which returned a "destination not reachable".) The ping of 192.168.1.47 runs successfully.
============== route -n =================
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
[root@localhost ~]# cat /etc/resolv.conf
; generated by /sbin/dhclient-script
search myhome.westell.com
nameserver 192.168.1.1
nameserver 192.168.1.1
.
- References:
- Troubleshooting connection loss (novice question)
- From: Allen Weiner
- Re: Troubleshooting connection loss (novice question)
- From: Bill Marcum
- Troubleshooting connection loss (novice question)
- Prev by Date: Re: Troubleshooting connection loss (novice question)
- Next by Date: iptables problem with port translation
- Previous by thread: Re: Troubleshooting connection loss (novice question)
- Next by thread: Port Mirroring in Linux
- Index(es):
Relevant Pages
|
