I'm trying to install vicibox, an OpenSUSE distro which includes Asterisk.  The fine manual says to set a static ip address with yast lan.What's the difference between:  [ ] Change Hostname via DHCP                                                                                                                                                  [x] Assign Hostname to Loopback IP I have my hostname set:YaST2 - lan @ arrakis  Network Settings                                                                                 Global OptionsOverviewHostname/DNSRouting   Hostname and Domain Name   Hostname                                                                            Domain Name                                                                               arrakis bounceme.net    [ ] Change Hostname via DHCP                                                                                                                                                  [x] Assign Hostname to Loopback IP                                                                                                                                               Modify DNS configuration Custom Policy Rule                                                                                                                                     Use Default Policy                                                                                                                                      Name Servers and Domain Search List   Name Server 1                                                                         Domain Search   8.8.8.8 google.com                                                                            Name Server 2                                                                                                                                                               8.8.4.4                                                                                       Name Server 3                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          with good connectivity:arrakis:~ # arrakis:~ # uname -aLinux arrakis 3.11.10-21-default #1 SMP Mon Jul 21 15:28:46 UTC 2014 (9a9565d) x86_64 x86_64 x86_64 GNU/Linuxarrakis:~ # arrakis:~ # cat /etc/hosts## hosts         This file describes a number of hostname-to-address#               mappings for the TCP/IP subsystem.  It is mostly#               used at boot time, when no name servers are running.#               On small systems, this file can be used instead of a#               named name server.# Syntax:#    # IP-Address  Full-Qualified-Hostname  Short-Hostname#127.0.0.1       localhost# special IPv6 addresses::1             localhost ipv6-localhost ipv6-loopbackfe00::0         ipv6-localnetff00::0         ipv6-mcastprefixff02::1         ipv6-allnodesff02::2         ipv6-allroutersff02::3         ipv6-allhosts127.0.0.2       arrakis.bounceme.net arrakisarrakis:~ # arrakis:~ # hostnamearrakisarrakis:~ # arrakis:~ # ping arrakis.bounceme.netPING arrakis.bounceme.net (127.0.0.2) 56(84) bytes of data.64 bytes from arrakis.bounceme.net (127.0.0.2): icmp_seq=1 ttl=64 time=0.040 ms64 bytes from arrakis.bounceme.net (127.0.0.2): icmp_seq=2 ttl=64 time=0.050 ms64 bytes from arrakis.bounceme.net (127.0.0.2): icmp_seq=3 ttl=64 time=0.049 ms^C--- arrakis.bounceme.net ping statistics ---3 packets transmitted, 3 received, 0% packet loss, time 1998msrtt min/avg/max/mdev = 0.040/0.046/0.050/0.007 msarrakis:~ # arrakis:~ # arrakis:~ # ping arrakisPING arrakis.bounceme.net (127.0.0.2) 56(84) bytes of data.64 bytes from arrakis.bounceme.net (127.0.0.2): icmp_seq=1 ttl=64 time=0.036 ms64 bytes from arrakis.bounceme.net (127.0.0.2): icmp_seq=2 ttl=64 time=0.041 ms64 bytes from arrakis.bounceme.net (127.0.0.2): icmp_seq=3 ttl=64 time=0.041 msc64 bytes from arrakis.bounceme.net (127.0.0.2): icmp_seq=4 ttl=64 time=0.040 ms64 bytes from arrakis.bounceme.net (127.0.0.2): icmp_seq=5 ttl=64 time=0.043 ms^C--- arrakis.bounceme.net ping statistics ---5 packets transmitted, 5 received, 0% packet loss, time 3996msrtt min/avg/max/mdev = 0.036/0.040/0.043/0.004 msarrakis:~ # arrakis:~ # arrakis:~ # ifconfigenp5s0    Link encap:Ethernet  HWaddr 50:E5:49:C2:C8:05            inet addr:192.168.0.21  Bcast:192.168.0.255  Mask:255.255.255.0          inet6 addr: fe80::52e5:49ff:fec2:c805/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:2632 errors:0 dropped:0 overruns:0 frame:0          TX packets:278 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000           RX bytes:173852 (169.7 Kb)  TX bytes:38509 (37.6 Kb)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:65536  Metric:1          RX packets:40 errors:0 dropped:0 overruns:0 frame:0          TX packets:40 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0           RX bytes:3248 (3.1 Kb)  TX bytes:3248 (3.1 Kb)arrakis:~ # but want to set the ip address to static:YaST2 - lan @ arrakis  Network Card Setup                                                                                GeneralAddressHardware    Device Type                                                                  Configuration Name                                                                                 Ethernet  enp5s0    ( ) No Link and IP Setup (Bonding Slaves) [ ] Use iBFT values                                                                                                                   ( ) Dynamic Address  DHCP  DHCP both version 4 and 6                                                                                                               (x) Statically assigned IP Address                                                                                                                                              IP Address                                    Subnet Mask                                    Hostname                                                                           192.168.0.21 255.255.255.0 arrakis.bounceme.net                                        Additional Addresses               Alias NameIP AddressNetmask                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      yet, as soon as I do so, I lose connectivity:arrakis:~ # yast lanarrakis:~ # arrakis:~ # arrakis:~ # ifconfigenp5s0    Link encap:Ethernet  HWaddr 50:E5:49:C2:C8:05            inet addr:192.168.0.21  Bcast:192.168.0.255  Mask:255.255.255.0          inet6 addr: fe80::52e5:49ff:fec2:c805/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:4027 errors:0 dropped:0 overruns:0 frame:0          TX packets:858 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000           RX bytes:271734 (265.3 Kb)  TX bytes:265009 (258.7 Kb)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:65536  Metric:1          RX packets:40 errors:0 dropped:0 overruns:0 frame:0          TX packets:40 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0           RX bytes:3248 (3.1 Kb)  TX bytes:3248 (3.1 Kb)arrakis:~ # arrakis:~ # arrakis:~ # ping google.comping: unknown host google.comarrakis:~ # why can't I ping Google?See also:http://www.vicidial.org/VICIDIALforum/viewtopic.php?f=4&t=34261----------------------------------------------------------------updateafter changing to a static ip address.  It's the same ip address as when dynamic.With static ip:arrakis:~ # arrakis:~ # ifconfigenp5s0    Link encap:Ethernet  HWaddr 50:E5:49:C2:C8:05            inet addr:192.168.0.21  Bcast:192.168.0.255  Mask:255.255.255.0          inet6 addr: fe80::52e5:49ff:fec2:c805/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:10438 errors:0 dropped:0 overruns:0 frame:0          TX packets:1133 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000           RX bytes:671095 (655.3 Kb)  TX bytes:300227 (293.1 Kb)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:65536  Metric:1          RX packets:40 errors:0 dropped:0 overruns:0 frame:0          TX packets:40 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0           RX bytes:3248 (3.1 Kb)  TX bytes:3248 (3.1 Kb)arrakis:~ # arrakis:~ # ip addr1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 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 brd 127.255.255.255 scope host lo       valid_lft forever preferred_lft forever    inet6 ::1/128 scope host        valid_lft forever preferred_lft forever2: enp5s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000    link/ether 50:e5:49:c2:c8:05 brd ff:ff:ff:ff:ff:ff    inet 192.168.0.21/24 brd 192.168.0.255 scope global enp5s0       valid_lft forever preferred_lft forever    inet6 fe80::52e5:49ff:fec2:c805/64 scope link        valid_lft forever preferred_lft foreverarrakis:~ # arrakis:~ # ip route127.0.0.0/8 dev lo  scope link 192.168.0.0/24 dev enp5s0  proto kernel  scope link  src 192.168.0.21 arrakis:~ # arrakis:~ # ping www.google.comping: unknown host www.google.comarrakis:~ # arrakis:~ # yast lanarrakis:~ # and then, switching back to DHCP should, I would think, restore an ability to ping google:arrakis:~ # arrakis:~ # ping www.google.comping: unknown host www.google.comarrakis:~ # arrakis:~ # ip route127.0.0.0/8 dev lo  scope link 192.168.0.0/24 dev enp5s0  proto kernel  scope link  src 192.168.0.21 arrakis:~ # arrakis:~ # ip addr1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 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 brd 127.255.255.255 scope host lo       valid_lft forever preferred_lft forever    inet6 ::1/128 scope host        valid_lft forever preferred_lft forever2: enp5s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000    link/ether 50:e5:49:c2:c8:05 brd ff:ff:ff:ff:ff:ff    inet 192.168.0.21/24 brd 192.168.0.255 scope global enp5s0       valid_lft forever preferred_lft forever    inet6 fe80::52e5:49ff:fec2:c805/64 scope link        valid_lft forever preferred_lft foreverarrakis:~ # arrakis:~ # ifconfigenp5s0    Link encap:Ethernet  HWaddr 50:E5:49:C2:C8:05            inet addr:192.168.0.21  Bcast:192.168.0.255  Mask:255.255.255.0          inet6 addr: fe80::52e5:49ff:fec2:c805/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:11178 errors:0 dropped:0 overruns:0 frame:0          TX packets:1490 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000           RX bytes:723997 (707.0 Kb)  TX bytes:415085 (405.3 Kb)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:65536  Metric:1          RX packets:40 errors:0 dropped:0 overruns:0 frame:0          TX packets:40 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0           RX bytes:3248 (3.1 Kb)  TX bytes:3248 (3.1 Kb)arrakis:~ # apparently not..
why can't I ping Google with a static IP address?
networking;opensuse;ip;yast;ifconfig