What IP addresses are initialy assigned on a new cloud server

I have spun up a standard tiny/small cloud server using the Amazon Cloud Console, Rackspace Cloud Control Panel and the HP Management Console [1]. We can see that for every vendors the provisioned cloud servers have different network settings.

Problem

What is a standard IP and routing configuration on a freshly built cloud server.

Solution

1. Rackspace


Example network config for Rackspace NextGen cloud server



root@manage2:~# ip a
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 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: BROADCAST,MULTICAST,UP,LOWER_UP mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether bc:76:4e:08:07:f4 brd ff:ff:ff:ff:ff:ff
    inet 5.79.xx.yy/24 brd 5.79.xx.yy scope global eth0
    inet6 2a00:1a48:7805:111:8cfc:xxx:yyy:zzz/64 scope global
       valid_lft forever preferred_lft forever
    inet6 fe80::be76:aaa:bbb:ccc/64 scope link
       valid_lft forever preferred_lft forever
3: eth1:  BROADCAST,MULTICAST,UP,LOWER_UP  mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether bc:76:4e:08:04:39 brd ff:ff:ff:ff:ff:ff
    inet 10.178.195.rrr/18 brd 10.178.255.255 scope global eth1
    inet6 fe80::be76:4eff:rrrr:sss/64 scope link
       valid_lft forever preferred_lft forever

root@manage2:~# ip route
default via 5.79.21.1 dev eth0  metric 100
5.79.21.0/24 dev eth0  proto kernel  scope link  src 5.79.aa.bbb
10.176.0.0/12 via 10.178.192.1 dev eth1
10.178.192.0/18 dev eth1  proto kernel  scope link  src 10.178.195.191




2. Amazon

Example network config for Amazon EC2 cloud server



ubuntu@ip-10-203-43-168:~$ ip a
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 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0:  BROADCAST,MULTICAST,UP,LOWER_UP  mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 12:31:3b:09:28:5a brd ff:ff:ff:ff:ff:ff
    inet 10.203.43.168/23 brd 10.203.43.255 scope global eth0
    inet6 fe80::1031:3bff:fe09:285a/64 scope link
       valid_lft forever preferred_lft forever

ubuntu@ip-10-203-43-168:~$ ip route
default via 10.203.42.1 dev eth0  metric 100
10.203.42.0/23 dev eth0  proto kernel  scope link  src 10.203.43.168




3. HP Cloud

Example network config for HP Openstack cloud server

[root@server-1352331143-az-3-region-a-geo-1 ~]# ip a
1: lo:  LOOPBACK,UP,LOWER_UP  mtu 16436 qdisc noqueue
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0:  BROADCAST,MULTICAST,UP,LOWER_UP  mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether 02:16:3e:70:b7:9e brd ff:ff:ff:ff:ff:ff
    inet 10.2.0.219/15 brd 10.3.255.255 scope global eth0
    inet6 fe80::16:3eff:aaaa:bbbb/64 scope link
       valid_lft forever preferred_lft forever
3: sit0:  NOARP  mtu 1480 qdisc noop
    link/sit 0.0.0.0 brd 0.0.0.0

[root@server-1352331143-az-3-region-a-geo-1 ~]# ip route
169.254.0.0/16 dev eth0  scope link
10.2.0.0/15 dev eth0  proto kernel  scope link  src 10.2.0.219
default via 10.2.0.1 dev eth0

References

http://rtomaszewski.blogspot.co.uk/2012/08/links-to-cloud-provider-web-management.html http://aws.amazon.com/free/