I'm testing IPv6 networking (using FreeBSSD .0, VMWare, NAT), but I can't connect from outside (localhost) via an IPv6 address(using IPv4, it works fine). How can I set up the network properly?
[root# /home/osmund]# cat /etc/rc.conf
hostname=""
ipv6_activate_all_interfaces="YES"
ifconfig_em1_ipv6="inet6 2001:db8:1::1 prefixlen 64"
#ipv6_enable="YES"
ipv6_network_interface="em1"
ifconfig_le0="DHCP"
sshd_enable="YES"
# Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable
dumpdev="AUTO"
[root# /home/osmund]# ifconfig
em1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=8<VLAN_MTU>
ether 00:0c:29:8f:45:74
inet6 2001:db8:1::1 prefixlen 64
inet6 fe80::20c:29ff:fe8f:4574%em1 prefixlen 64 scopeid 0x2
inet 192.168.124.133 netmask 0xffffff00 broadcast 192.168.124.255
nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
media: Ethernet autoselect
status: active
plip0: flags=8810<POINTOPOINT,SIMPLEX,MULTICAST> metric 0 mtu 1500
nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
options=3<RXCSUM,TXCSUM>
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4
inet 127.0.0.1 netmask 0xff000000
nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
[root# /home/osmund]# ping6 2001:db8:1::1
PING6(56=40+8+8 bytes) 2001:db8:1::1 --> 2001:db8:1::1
16 bytes from 2001:db8:1::1, icmp_seq=0 hlim=64 time=0.529 ms
16 bytes from 2001:db8:1::1, icmp_seq=1 hlim=64 time=0.133 ms
^C
--- 2001:db8:1::1 ping6 statistics ---
2 packets transmitted, 2 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 0.133/0.331/0.529/0.198 ms
[root# /home/osmund]#
Have you tried to use bridged network instead?
Related
I am trying to create a macvlan bridge link with the following command:
sudo ip link add access link ens33 type macvlan mode bridge
I can see that new interface is created:
ubuntu#master-node:~/sd-core$ ip link show access
26: access#ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
link/ether d6:cf:97:52:81:ca brd ff:ff:ff:ff:ff:ff
ubuntu#master-node:~/sd-core$ ifconfig access
access: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.252.1 netmask 255.255.255.0 broadcast 192.168.252.255
inet6 fe80::d4cf:97ff:fe52:81ca prefixlen 64 scopeid 0x20<link>
ether d6:cf:97:52:81:ca txqueuelen 1000 (Ethernet)
RX packets 2433 bytes 169754 (169.7 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 160 bytes 15648 (15.6 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
However, when I try to ping the new interface, I can only see packets getting up to ens33, and not access interface. This is the result of tcpdump over the main interface:
ubuntu#master-node:~/sd-core$ sudo tcpdump -i ens33 host 192.168.201.134 -n
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on ens33, link-type EN10MB (Ethernet), capture size 262144 bytes
08:15:20.100745 IP 192.168.201.134 > 192.168.252.1: ICMP echo request, id 49036, seq 23, length 64
08:15:21.124956 IP 192.168.201.134 > 192.168.252.1: ICMP echo request, id 49036, seq 24, length 64
08:15:22.148624 IP 192.168.201.134 > 192.168.252.1: ICMP echo request, id 49036, seq 25, length 64
08:15:23.172562 IP 192.168.201.134 > 192.168.252.1: ICMP echo request, id 49036, seq 26, length 64
08:15:24.196761 IP 192.168.201.134 > 192.168.252.1: ICMP echo request, id 49036, seq 27, length 64
And this is the tcpdump at the macvlan interface:
ubuntu#master-node:~/sd-core$ sudo tcpdump -i access host 192.168.201.134 -n
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on access, link-type EN10MB (Ethernet), capture size 262144 bytes
^C
0 packets captured
What am I doing wrong? Can someone help me?
My plan is to read from one tun interface and write to another.
Here are my command when I set up the interface:
sudo ip tuntap add dev router0 mod tun
sudo ip addr add 10.0.0.138/24 dev router0
sudo ip link set dev router0 up
Here is the output of ip addr show dev router0
8: router0: <NO-CARRIER,POINTOPOINT,MULTICAST,NOARP,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 500
link/none
inet 10.0.0.138/24 scope global router0
valid_lft forever preferred_lft forever
When I try to ping 10.0.0.138 listen on the interface using tshark via sudo tshark -i router0, nothing happens.
Here is my ping 10.0.0.138 output:
PING 10.0.0.138 (10.0.0.138) 56(84) bytes of data.
64 bytes from 10.0.0.138: icmp_seq=1 ttl=64 time=0.063 ms
64 bytes from 10.0.0.138: icmp_seq=2 ttl=64 time=0.058 ms
Here is my sudo tshark -i router0 output:
Capturing on 'router0'
Nothing is coming through
What is the problem?
I have installed a new USB Wifi network card in Debian 9.
After configuring it, the router assigns me an IP via DHCP but I don't have internet access.
It is the Alpha Network AWUS036NH (Ralink RT3070 Chipset) Wifi network card.
It is on a Debian 9 without a graphical environment.
I have installed the firmware-ralink package and it is using the rt2800usb driver.
I have tried the next commands:
iwconfig
eth1 no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11 ESSID:"CAMIONES"
Mode:Managed Frequency:2.437 GHz Access Point: 74:AC:B9:21:3C:E5
Bit Rate=1 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=70/70 Signal level=-37 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:1 Invalid misc:4 Missed beacon:0
lo no wireless extensions.
ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.80.4.2 netmask 255.255.255.0 broadcast 10.80.4.255
ether 4c:02:89:12:c0:be txqueuelen 1000 (Ethernet)
RX packets 5002 bytes 631414 (616.6 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 5510 bytes 882802 (862.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device memory 0xd0600000-d06fffff
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
loop txqueuelen 1 (Local Loopback)
RX packets 6146 bytes 509679 (497.7 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 6146 bytes 509679 (497.7 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.200.18 netmask 255.255.255.0 broadcast 192.168.200.255
ether 00:c0:ca:5a:00:60 txqueuelen 1000 (Ethernet)
RX packets 8 bytes 1170 (1.1 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 58 bytes 7704 (7.5 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.80.4.1 0.0.0.0 UG 0 0 0 eth0
10.80.4.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eth0
192.168.200.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0
traceroute -i wlan0 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
1 * * *
2 * * *
3 * * *
4 * * *
5 * * *
6 *^C
I have tried to add a static route so that when I use wlan0 it will find its gateway:
route add default gw 192.168.200.1 dev wlan0
The rule is added but it does not work and I also lose internet access through eth0
ping -c2 -I wlan0 www.google.fr
PING www.google.fr (216.58.209.67) from 192.168.200.18 wlan0: 56(84) bytes of data.
--- www.google.fr ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1032ms
Contents of the configuration files:
/etc/resolv.conf
nameserver 80.58.61.250
nameserver 8.8.8.8
nameserver 80.58.61.254
/etc/network/interfaces.d/wlan0
allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-ssid CAMIONES
wpa-psk pass
gateway 192.168.200.1
dns-nameservers 192.168.200.1
/etc/wpa_supplicant/wpa_supplicant.conf
network={
ssid="CAMIONES"
psk="pass"
}
I have tried connecting to another router and have the same problem.
What problem can I have with the configuration?
Thank you very much.
Your default route is set to go out via eth0 so all traffic will leave the eth0 interface, unless you have a specific(non default) route set to go out via wlan0.
Try this and see if you get a response:
route add -net 8.8.8.0 netmask 255.255.255.0 gw 192.168.200.1 dev wlan0
ping 8.8.8.8
I had a vagrantfile working (here).
But after updating my Linux version (4.4 to 4.8). It stopped resolving the guest address (192.168.0.210). I do not know if this could be the cause.
I installed VirtualBox and Kernel modules for Linux 4.8.
These are the versions I'm using:
Manjaro Linux (Arch Linux)
Kernel 4.4 or 4.8 (I tried with both)
Vagrant 1.9.1
VirtualBox 5.1.10 r112026
When I ping the guest, this is what I get:
$ ping 192.168.0.210
PING 192.168.0.210 (192.168.0.210) 56(84) bytes of data.
From 192.168.0.1 icmp_seq=1 Destination Host Unreachable
From 192.168.0.1 icmp_seq=2 Destination Host Unreachable
From 192.168.0.1 icmp_seq=3 Destination Host Unreachable
From 192.168.0.1 icmp_seq=4 Destination Host Unreachable
From 192.168.0.1 icmp_seq=5 Destination Host Unreachable
However, if I ping the network address directly, it suceed:
$ ping 192.168.0.1
PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
64 bytes from 192.168.0.1: icmp_seq=1 ttl=64 time=0.034 ms
64 bytes from 192.168.0.1: icmp_seq=2 ttl=64 time=0.036 ms
64 bytes from 192.168.0.1: icmp_seq=3 ttl=64 time=0.036 ms
64 bytes from 192.168.0.1: icmp_seq=4 ttl=64 time=0.035 ms
64 bytes from 192.168.0.1: icmp_seq=5 ttl=64 time=0.034 ms
This is the vbox network:
vboxnet0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.1 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 fe80::800:27ff:fe00:0 prefixlen 64 scopeid 0x20<link>
ether 0a:00:27:00:00:00 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 68 bytes 8598 (8.3 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
On the guest. These are the network interfaces:
$ ip addr
1: 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 scope host lo
valid_lft forever preferred_lft forever
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 52:54:00:d8:71:80 brd ff:ff:ff:ff:ff:ff
inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic eth0
valid_lft 85612sec preferred_lft 85612sec
inet6 fe80::5054:ff:fed8:7180/64 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 08:00:27:20:77:0b brd ff:ff:ff:ff:ff:ff
inet6 fe80::a00:27ff:fe20:770b/64 scope link
valid_lft forever preferred_lft forever
The firewall was disabled on host and guest while I was testing it.
Any clue?
Thanks!
Ok, it is a bug with Vagrant 1.9.1 (reverting to 1.9.0 works ok).
https://github.com/mitchellh/vagrant/issues/8142
the ifconfig output of my machine is the following:
:~ shell$ ifconfig en0
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether 00:25:bc:e7:39:6a
inet6 fe80::225:bcff:fee7:396a%en0 prefixlen 64 scopeid 0x4
inet 10.170.133.45 netmask 0xffffff00 broadcast 10.170.133.255
media: autoselect (100baseTX <full-duplex>)
status: active
I know that netmask 0xffffff00 is the hexadecimal representation of 255.255.255.0.
But which is the correct way of converting that string into the octet format?
Can you suggest some unix command or shell script?
say you already gotten that hex number into a variable
$ s="0xffffff00"
$ p="${s:0:2}"
$ printf "%d.%d.%d.%d\n" ${p}${s:2:2} ${p}${s:4:2} ${p}${s:6:2} ${p}${s:8:2}
255.255.255.0