[SOLVED]bridge connection to container with static IP

I have been messing for many days now trying to do a clean setup for a bridge br0 for a linux container managed with systemd-nspawn.
I run a custom kernel (as I need user space set) 3.13.5-1, systemd-git. The container boots fine. This container is a test server and so aimed at various network services, basically http, ftp, ssh,smtp. This will then be bind to a domain name. Thus I need to "cleanly" separate the container network traffic from my host network one. My idea is then to give each one a specific static IP.
First question : is it correct to give two IP on the same network or shall I create a sub-network for the container ? (I am looking for a simple configuration).
I loaded the needed iptable modules as they are not loaded at boot.
$ lsmod
iptable_nat
ip_tables
iptable_filter
Now on the host, dhcpcd.service is disabled, iptables is enabled, and here is my netctl profile:
Description='hortensia static ethernet connection'
Interface=enp7s0
Connection=ethernet
IP=static
Address=('192.168.1.87/24')
Gateway='192.168.1.254'
DNS=('212.147.10.180' '212.147.10.162')
network is ok. Below some command outputs:
gabx@hortensia ➤➤ ~ % ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
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
2: enp7s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 14:da:e9:b5:7a:88 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.87/24 brd 192.168.1.255 scope global enp7s0
valid_lft forever preferred_lft forever
gabx@hortensia ➤➤ ~ % route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default dsldevice.lan 0.0.0.0 UG 202 0 0 enp7s0
192.168.1.0 * 255.255.255.0 U 202 0 0 enp7s0
hortensia.lan localhost.local 255.255.255.255 UGH 202 0 0 lo
gabx@hortensia ➤➤ ~ # iptables -nvL --line-numbers
Chain INPUT (policy ACCEPT 90 packets, 18862 bytes)
num pkts bytes target prot opt in out source destination
Chain FORWARD (policy DROP 0 packets, 0 bytes)
num pkts bytes target prot opt in out source destination
Chain OUTPUT (policy ACCEPT 91 packets, 18210 bytes)
num pkts bytes target prot opt in out source destination
Now things start to be messy when I want to start the bridge netctl profile
Description="Bridge connection to container"
Interface=br0
Connection=bridge
BindsToInterfaces=(enp7s0)
IP=static
Adress=('192.168.1.94/24')
when I start this profile, this leave me with a broken network and I can not browse the web. Below some command outputs:
gabx@hortensia ➤➤ ~ % ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
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
2: enp7s0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UP group default qlen 1000
link/ether 14:da:e9:b5:7a:88 brd ff:ff:ff:ff:ff:ff
8: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
link/ether 14:da:e9:b5:7a:88 brd ff:ff:ff:ff:ff:ff
gabx@hortensia ➤➤ ~ % route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
Why can't I see the br0 and enp7s0 IP in the $ ip addr command output ?
I tried some other profiles, but it didn't change. I tried : BindsToInterface0(); adding Gateway and DNS
Some user tolde me on the mailing
Leonid Isaev wrote:* Populate the iptables FORWARD chain to route traffic from your physical
interface to the bridge and back.
but I am not sure how to do this.
Thank you for some help as I already spent days and days on this issue.
Last edited by gabx (2014-02-28 18:26:07)

After playing with many netctl profiles in many orders, I found that the bridge profile has to started first and not bind to Ethernet device.
The two following profiles do the job :
/etc/netctl/bridge-hortensia
Description="Bridge connection to container"
Interface=br0
Connection=bridge
BindsToInterfaces=()
IP=no
SkipNoCarrier=yes
/etc/netctl/static-hortensia
Description='hortensia static ethernet connection'
Interface=enp7s0
Connection=ethernet
After=(bridge-hortensia)
IP=static
Address=('192.168.1.87/24')
Gateway='192.168.1.254'
DNS=('212.147.10.180' '212.147.10.162')

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A) VDC has IP configured in DHCP mode - always same, survives through restart (all works)
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . : CD.lan
Description . . . . . . . . . . . : Microsoft Virtual Machine Bus Network Adapter
Physical Address. . . . . . . . . : 00-15-5D-01-D3-00
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::b9af:6679:3142:8799%13(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.5(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Thursday, January 30, 2014 5:34:48 PM
Lease Expires . . . . . . . . . . : Friday, February 07, 2014 5:35:26 PM
Default Gateway . . . . . . . . . : 192.168.1.254
DHCP Server . . . . . . . . . . . : 192.168.4.5
DHCPv6 IAID . . . . . . . . . . . : 268440925
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-6F-5F-C2-00-15-5D-01-D3-00
DNS Servers . . . . . . . . . . . : 192.168.1.5
192.168.4.5
NetBIOS over Tcpip. . . . . . . . : Enabled
ARP -a output from host server at that time:
Interface: 192.168.1.4 --- 0xc
Internet Address Physical Address Type
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B) VDC has IP configured in static mode - BEFORE RESTART (all works)
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual Machine Bus Network Adapter
Physical Address. . . . . . . . . : 00-15-5D-01-D3-00
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::b9af:6679:3142:8799%13(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.5(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.254
DHCPv6 IAID . . . . . . . . . . . : 268440925
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-6F-5F-C2-00-15-5D-01-D3-00
DNS Servers . . . . . . . . . . . : 192.168.1.5
192.168.4.5
NetBIOS over Tcpip. . . . . . . . : Enabled
ARP -a output from host server at that time:
Interface: 192.168.1.4 --- 0xc
Internet Address Physical Address Type
192.168.1.5 00-15-5d-01-d3-00 dynamic
C) VDC has the same IP configured in static mode - AFTER RESTART (no more network connectivity at all, LAN in Public zone)
Windows IP Configuration
Host Name . . . . . . . . . . . . : VDC
Primary Dns Suffix . . . . . . . : CD.lan
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : CD.lan
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual Machine Bus Network Adapter
Physical Address. . . . . . . . . : 00-15-5D-01-D3-00
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::b9af:6679:3142:8799%13(Preferred)
Autoconfiguration IPv4 Address. . : 169.254.135.153(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . : 192.168.1.254
DHCPv6 IAID . . . . . . . . . . . : 268440925
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-6F-5F-C2-00-15-5D-01-D3-00
DNS Servers . . . . . . . . . . . : 192.168.1.5
192.168.4.5
NetBIOS over Tcpip. . . . . . . . : Enabled
ARP -a output from host server at that time:
Interface: 192.168.1.4 --- 0xc
Internet Address Physical Address Type
192.168.1.5 00-15-5d-01-d3-00 dynamic
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The Network Connection #4 is assigned to Microsoft Virtual Switch hence why it doesn't show up in results, like below:
Windows IP Configuration
Host Name . . . . . . . . . . . . : HYPER-V
Primary Dns Suffix . . . . . . . : CD.lan
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : CD.lan
Ethernet adapter Local Area Connection 3:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP Ethernet 1Gb 4-port 331i Adapter #3
Physical Address. . . . . . . . . : 9C-8E-99-52-15-91
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Ethernet adapter Local Area Connection 2:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP Ethernet 1Gb 4-port 331i Adapter #2
Physical Address. . . . . . . . . : 9C-8E-99-52-15-90
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::dc78:8a3b:38a5:7af3%12(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.4(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.254
DHCPv6 IAID . . . . . . . . . . . : 312250009
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-67-52-8F-9C-8E-99-52-15-93
DNS Servers . . . . . . . . . . . : 192.168.4.5
192.168.1.5
NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Local Area Connection:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP Ethernet 1Gb 4-port 331i Adapter
Physical Address. . . . . . . . . : 9C-8E-99-52-15-93
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
On Monday I will install more test guests in Hyper-V host (WS2008R2), in variety of flavors like 7x64, 8.1x64, ws2012r2, and see if they show similar problems with static IP configuration when utilizing a dedicated NIC from host server.
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I am not using a static external IP with my ISP. Mine does not allow that either for home accounts. I set static addresses for my internal network of devices. Check your router to see if there is an option to set DHCP "reservations". Your external IP provided by your ISP to connect to the internet is not effected.

Connect AE to motorola cable model with static IP

I'm trying to replace the wireless modem supplied by the cable company with my AE/time capsule. This involves using a static IP.
I've gone through all the various stages using the information from the ISP but when I try to save the settings on the airport it gives the error message "IP address not compatible with WAN setup" and just won't let me go further.
I am stumped.
The AE has been reset to factory settings. I am using the router address supplied by the ISP - is this wrong? If I don't use static IP I don't get the problem, but I also don't get a connection, obviously, so I'm assuming the issue is somehow linked to the static issue.
The cable modem is a motorola so lord knows what other problems I will have but for now I just want to at least get the configuration right in principle.
What am I doing wrong?
Please bear in mind, I have a brain but I am NOT a techie. I have had the TC working with a cable modem before (but not static IP), and had a working AE with static IP on an ethernet connection both without much problem, so this has me cross and confused.
Halp?

Power down the Motorola SB5101 cable modem. Unplug your Netcomm wireless router and set it aside. "Hard reset" your Extreme by following the instructions below, and connect its Ethernet WAN port to the cable modem. Don't try to reconfigure the Extreme from its present settings; "hard reset" it and start from the beginning.
Power up both the cable modem and the Extreme, launch AirPort Utility, select "New AirPort Extreme..." from your Mac's Wi-Fi menu, and proceed to configure it. After clicking Update, wait a moment or two to reset, then connect to the wireless network you just created by selecting it in your Mac's Wi-Fi menu.
There should be no need to use a static IP address. If you have reason for requiring one explain what it is, but you will require information from your ISP.
It's not clear whether you have an AirPort Extreme, a Time Capsule, or both. If you have both then that also needs clarification.
To "hard reset" an AirPort Base Station: make sure it's powered up, then press and hold its tiny reset button and keep it depressed for five to ten seconds, long enough for its LED to flash amber rapidly. Release the reset button. Then, the LED will glow amber steadily for about a minute. Then, it will flash amber, slowly, about once every second or two, waiting for you to configure it with AirPort Utility.

Problem iPhone WiFi Connection to Airport Express with static IP addresses

We have our Airport Express configured on the LAN with a fixed IP. It is not distributing IP addresses, or providing DHCP services; it simply links the WiFi to the LAN.
To connect via WiFi you set a static IP for the wireless device and enter all IP information by hand (IP/Router/Mask/DHCP etc). Laptops can connect fine, and use the network.
The iPhone connects to the wireless network ok (we tried with security on and off), however, it seems to be unable to successfully use the network. Any attempt to browse a web page using a numeric IP address, or regular IP address, fails.
Has anyone successfully used the iPhone on a WiFi network with static IP addresses, and a Wireless access point that also uses a static IP address?

The problem with static IP on iPhone was caused by the IP address being blocked by over-zealous network manager...

(EA4500). With static IP assigned, how to tell of devices are connected?

I've assigned static IPs to all of my network devices.
Logging onto the router, there does not appear to be any way to tell whether any device is connected or not. Is this normal?

Static IP assignments are only done on the device itself. You switch the device from DHCP to static IP and configure everything on the device itself.
DHCP reservation is not a static IP assignment. It's telling the DHCP server to assign a specific IP address to a specific device. The device still runs on DHCP and cannot tell whether the IP address received is the IP address reserved or not. That's something entirely different and not to be confused with static IP.
Linksys routers never showed a complete list of connected devices. As mentioned before, you can only see the list of wireless devices associated. You won't see wired devices with static IP nor DHCP reservation and even the DHCP client list is often incomplete...

[SOLVED]bridge connection to container with static IP

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