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This is different than most of the other questions I've researched so far. My Debian server can access and be accessed on the local area network only. It cannot ping the outside world. It can ping the router, and can perform cached nslookup's without a problem. When trying to do a traceroute, it cannot connect to anything.

If I do a ping, I get the IP address, then all packets lost. I can ping my router, and my notebook from the system. I have tried restarting networking, and verifying the /etc/network/interfaces file. Name resolution is not an issue (as most others were), and this is not running a GUI. Currently, I am SSHing into it from my notebook. All other devices on my network can access the Internet. My Debian box is not an edge device, it's completely behind the router. What can I look for next?

# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug eth0
auto eth0
#iface eth0 inet dhcp
iface eth0 inet static

# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet scope host lo
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 1c:6f:65:c4:44:37 brd ff:ff:ff:ff:ff:ff
    inet brd scope global eth0

# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface         UG    0      0        0 eth0   U     0      0        0 eth0
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OK, I'm a little upset right now...

Rebooted the router, and it got Internet access again. Guess I'll be updating the firmware on the router

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