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Iiridayn
Asked: 2010-01-24 23:16:55 +0800 CST

Errors when switching to specific static IP

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I had a Fedora box running using my static IP 69.169.136.6, etc, all configured according to what the ISP required. Just recently the hard drive failed (and I should have been keeping better backups) - while it is being recovered I would like to put up a webpage on my Archlinux PC explaining the problem - I presently do not have sufficient access to change the DNS record assigned to the domain.

When I change my ip address while my system is running to 69.169.136.6, ifconfig reports the new ip address, but http://whatismyip.com/ does not. When I change it and reboot, I can't ping - the message I recieve is "connect: Network is unreachable" (when given one of google.com 's IP addresses - hostnames give me ping: unknown host xxx). Until I have access to the DNS system, what can I do to make this work?

Edit: With new IP address, same problem, IP is now 69.169.136.29. Some commands might be useful:

#ping 69.169.136.1
PING 69.169.136.1 (69.169.136.1) 56(84) bytes of data.
64 bytes from 69.169.136.1: icmp_seq=1 ttl=64 time=0.377 ms

#ping 69.169.190.211
connect: Network is unreachable
#ping 208.72.160.67
connect: Network is unreachable

#ifconfig
eth0      Link encap:Ethernet  HWaddr 00:E0:4D:97:23:9B  
          inet addr:69.169.136.29  Bcast:69.169.137.255  Mask:255.255.254.0
          inet6 addr: fe80::2e0:4dff:fe97:239b/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:132091 errors:0 dropped:0 overruns:0 frame:0
          TX packets:17 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:9635179 (9.1 Mb)  TX bytes:1322 (1.2 Kb)
          Interrupt:29 Base address:0x6000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:48 errors:0 dropped:0 overruns:0 frame:0
          TX packets:48 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2480 (2.4 Kb)  TX bytes:2480 (2.4 Kb)

#ip route
69.169.136.0/23 dev eth0  proto kernel  scope link  src 69.169.136.29 

#cat /etc/resolv.conf
# Generated by dhcpcd
#nameserver 208.67.222.222
#nameserver 208.67.220.220
nameserver 69.169.190.211
nameserver 208.72.160.67

# /etc/resolv.conf.tail can replace this line

Update: have new static IP addresses, verified to work in Windows... Relevant portions of /etc/rc.conf below:

#Static IP example
#eth0="eth0 69.169.136.6 netmask 255.255.254.0 broadcast 69.169.136.1"
#eth0="eth0 69.169.136.29 netmask 255.255.254.0 broadcast 69.169.137.255"
eth0="eth0 69.169.136.32 netmask 255.255.254.0 broadcast 69.169.137.255"
#eth0="dhcp"
INTERFACES=(eth0)

# Routes to start at boot-up (in this order)
# Declare each route then list in ROUTES
#   - prefix an entry in ROUTES with a ! to disable it
#
#gateway="default gw 192.168.0.1"
gateway="default gw 69.169.136.1"
#gateway="69.169.136.1"
ROUTES=(!gateway)
#ROUTES=()
networking ip arch-linux static-ip

2 Answers

  1. check your network settings:

    • is your network mask and broadcast address set correctly?
    • is your default gateway set correctly?
    • 2
  2. Best Answer

    From the output of your ip route you don't have the default gateway set - try running:

    ip route add default via 69.169.136.1

    I'm not sure if it's different on archlinux, but on the Redhat variants to make that permenant you can add the following to /etc/sysconfig/network:

    GATEWAY=69.169.136.1
    • 2