Meow613
November 20, 2016, 1:11am
1
PING
root@server1:/home/server1# ifconfig
eth0 Link encap:Ethernet HWaddr 00:23:ae:27:b9:ec
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:16
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:41 errors:0 dropped:0 overruns:0 frame:0
TX packets:41 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3589 (3.5 KiB) TX bytes:3589 (3.5 KiB)
wlan0 Link encap:Ethernet HWaddr 00:24:2c:49:d1:d8
inet addr:192.168.1.6 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::224:2cff:fe49:d1d8/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:54 errors:0 dropped:0 overruns:0 frame:6492
TX packets:100 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:5617 (5.4 KiB) TX bytes:12808 (12.5 KiB)
Interrupt:17 Base address:0xc000
root@server1:/home/server1# ping6 localhost
PING localhost(localhost.wmcomputersystems) 56 data bytes
ping: sendmsg: Network is unreachable
What is going on?
There is no (localhost) ::1
ipv6 address set for the lo interface.
In addition there needs to be an ipv6 localhost entry in /etc/hosts for example:
::1 localhost
Meow613
November 20, 2016, 4:44pm
3
Scrutinizer -
Thanks.
I am a newbie in setting up a network. Here is my /etc/hosts
root@server1:/home/server1# cat /etc/hosts
#127.0.0.1 localhost
#::ffff:7f00:1 localhost.wmcomputersystems ::1
::1 localhost.wmcomputersystems localhost
#127.0.1.1 server1
2620:7:a000::1 server1.wmcomputersystems.com server1
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
There is no (localhost)
::1
ipv6 address set for the lo interface.
How?
What is your OS and version ?
Meow613
November 22, 2016, 12:06pm
5
Scrutinizer -
Thanks.
Debian 8.5
---------- Post updated 11-22-16 at 12:11 AM ---------- Previous update was 11-21-16 at 12:22 PM ----------
I don't know, but if this helps...
root@server1:/home/server1# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
link/ether 00:23:ae:27:b9:ec brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DORMANT group default qlen 1000
link/ether 00:24:2c:49:d1:d8 brd ff:ff:ff:ff:ff:ff
root@server1:/home/server1# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 1024 0 0 wlan0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlan0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0
---------- Post updated at 12:00 PM ---------- Previous update was at 12:11 AM ----------[/CO
[COLOR="\#738fbf "]---------- Post updated at 12:06 PM ---------- Previous update was at 12:00 PM ----------
Anybody elwse wish to chime in?
Meow613
November 24, 2016, 4:10pm
6
Does anybody have any ideas how to solve this?
Aia
November 24, 2016, 5:40pm
7
What's your output of the following command?
sysctl net.ipv6.conf.{all,default,lo}.disable_ipv6
Meow613
November 24, 2016, 8:55pm
8
/home/server1# systctl net.ipv6.conf.{all,default,lo}.disable_ipv6
bash: systctl: command not found
Aia
November 24, 2016, 9:38pm
9
Apologies. I misspelled the command. Please, remove the extra t
after the second s
. It should be:
sysctl net.ipv6.conf.{all,default,lo}.disable_ipv6
Meow613
November 24, 2016, 11:40pm
10
Thanks.
Here is the output:
root@server1:/home/server1# sysctl net.ipv6.conf.{all,default,lo}.disable_ipv6
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
Aia
November 25, 2016, 10:16am
11
meow613:
Thanks.
Here is the output:
root@server1:/home/server1# sysctl net.ipv6.conf.{all,default,lo}.disable_ipv6
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
Your ip version six has been disabled in the system you are using.
To enabled it again, find those entries in the file /etc/sysctl.conf
and change the 1
to a 0
. Then, issue the command sysctl -p
After that try ping6 ::1
Meow613
December 10, 2016, 11:34pm
12
Aia -
Sorry for the delay -
Here is the reply:
root@server1:/home/server1# ping6 ::1
connect: Network is unreachable
---------- Post updated at 11:34 PM ---------- Previous update was at 11:21 PM ----------
Aia -
Sorry.
Did not make the proper edits.
Here it is again:
PING ::1(::1) 56 data bytes
64 bytes from ::1: icmp_seq=1 ttl=64 time=0.040 ms
64 bytes from ::1: icmp_seq=2 ttl=64 time=0.070 ms
64 bytes from ::1: icmp_seq=3 ttl=64 time=0.085 ms
64 bytes from ::1: icmp_seq=4 ttl=64 time=0.077 ms
64 bytes from ::1: icmp_seq=5 ttl=64 time=0.086 ms
^C
--- ::1 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3999ms
rtt min/avg/max/mdev = 0.040/0.071/0.086/0.019 ms
root@server1:/home/server1# ping6 ::ffff:2f15:9a92
PING ::ffff:2f15:9a92(::ffff:47.21.154.146) 56 data bytes
ping: sendmsg: Network is unreachable
ping: sendmsg: Network is unreachable
::ffff:2f15:9a92
is my iIPv6 address.
meow613