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-2
votes
0answers
26 views

Give internet to a network bridge on a different subnet [on hold]

I have 3 Ethernet ports on a linux vespa PC. They are all on a bridge br0. I have internet coming in on eth0 but it's on a different subnet (10.1.1.X) and my bridge is (10.0.0.X). How can I get the ...
0
votes
2answers
12 views

Is it possible to configure carp using /etc/network/interfaces?

Lots of tutorials out there show to set-up carp using ifconfig: https://www.netbsd.org/docs/guide/en/chap-carp.html I'm wondering if it's possible to do the same using /etc/network/interfaces? For ...
0
votes
1answer
254 views

Adding static IPs on a p1p1 interface in ubuntu 14.04

I'm wondering if anyone can give me a rundown for networking configurations in ubuntu when the interfaces are p1p1 etc. I have tried p1p1:0 (like eth0:0) for secondary IPs to no avail. If someone ...
0
votes
0answers
15 views

Can we add post commands with the salt network module?

I'd like to add post-up and post-down commands to my network interfaces. Can salt.states.network do that ? If not what would be the best way to add them using salt knowing that I can't simply add ...
-3
votes
1answer
100 views

ssh on eth0, everything else on eth1 [closed]

I wouldn't even consider myself an iptables novice user, so I was wondering if someone could please help me to do this: I want to be able to ssh into one of my servers using the eth0 network ...
8
votes
2answers
204 views

Packet captures: filtering on RX vs TX

I have a network problem where frames with a source MAC which matches with one of my host's source MACs are arriving at the host - an apparent duplicate MAC, or loop, or other L2 problem. I believe ...
1
vote
0answers
76 views

heartbeat doesn't work on virtual interface

I try to use vertual interface as broadcast for heartbeat(bcast in ha.cf). When I try it I see this message in syslog: May 23 12:17:26 Ubuntu2 heartbeat: [1107]: ERROR: glib: Error setting socket ...
1
vote
2answers
1k views

XenServer 6.2 changing mtu

So I've looked around for a way to change the MTU of interfaces on XenServer 6.2, but can't find anything that works for me ... One method spoke about changing the ifcnfg-intX files in the ...
2
votes
2answers
200 views

Consistent Naming of 10gbps Interfaces on Dell Host

I have some Dell hosts in our environment. I would like to be able to provide consistent network interface naming across platforms. I know that biosdevname attempts to make the interfaces consistent ...
0
votes
1answer
46 views

Tshark/wireshark on an ephemeral interface

Our server hosts a VPN. Each connection to the VPN creates a new PPP interface (ppp0, ppp1, etc.) and the connections are ephemeral in the sense that the interface can go up or down intermittently. ...
0
votes
0answers
144 views

interfaces stopped working

I have a cisco machine with centos 6.5 installed on it and all of a sudden my network interfaces stopped working. When trying to restart the network service with /etc/init.d/network restart I got the ...
0
votes
2answers
50 views

Multiple net interfaces ubuntu virualbox

I have a Virtual Box machine with 2 net adapters, first is an "internal net" and the second a "bridge adapter". How could I config both for have an static ip for the internal network and a dynamic ip ...
0
votes
1answer
44 views

If one subnet can see another does that mean that there is a bridge between two interfaces?

This might seem like kind of a dumb question, but...say for example... I have a router running OpenWRT or some Linux distro and that router or box has two interfaces (lets say for sake of example a ...
0
votes
1answer
116 views

Keep router interfaces isolated

Have a Cisco Router 2811 with a HWIC that gives it an extra port so I have 3 Ethernet ports. Have it configured like this: FA0/0- 192.168.1.1 FA0/1- 192.168.10.1 FA1/0- 10.0.0.1 (outside) All that ...
1
vote
2answers
185 views

How to set ip address permanently

This might sound a little strange, but I try to achieve to set up an ip address permanently in Ubuntu using the command line, but not an editor. My idea is to provision servers and just type in the ...
0
votes
1answer
54 views

Can I assign a virtual interface (VPN) to a 'real' interface / NIC of my choice?

I have a small server , running MINT linux with two NICS (eth0 and eth1) and I'd like to setup the MintBox as a VPN client to connect to a web-hosted VPN server. All works wonderfully on the VPN ...
0
votes
1answer
320 views

how to forward all traffic on specific interface to ip address

I have one Linux machine that have 2 interfaces. The first one is used as a default one and provides access to internet, the second interface was added as a dedicated link to send packets from tcpgen ...
0
votes
1answer
72 views

Configure IP addresses for virtual interfaces only

In my current CentOS ifconfig, I have eth0 and the range of virtual interfaces eth0:0 - eth0:3 each taking up a unique address in the subnet 69.xx.yy.194/29 (gateway = .193, broadcast = .199) Now I ...
1
vote
0answers
30 views

“Breadcrumbs” for series of hostnames?

Does anyone know of a shell that would show a series of breadcrumbs as I navigate into/out of various servers, like this: Home > Build Machine > Vagrant > Docker-base Hopefully it could ...
0
votes
2answers
112 views

Linux VM's connectivity dies when second network interface is brought up

I'm in the middle of doing some testing on a mobile device, and want to test it from the network. The mobile device will only connect to networks via WiFi, and doesn't support ad-hoc mode, so I've set ...
1
vote
1answer
179 views

SSH timeouts between hosts which are connected via multiple routes

I've a nasty problem with ssh connections between hosts, which are connected via multiple ways (routes). To explain this in detail ... As you can see, there are two possible ways between the hosts, ...
0
votes
1answer
687 views

what is the use of /etc/udev/rules.d/70-persistent-net.rules file in rhel?

what is the use of /etc/udev/rules.d/70-persistent-net.rules file in linux? is anyother way to change interface name in linux other than 70-persistent-net.rules? Thanks.
0
votes
1answer
404 views

ntop not reporting on all interfaces

I'm trying to setup ntop on our machine to see which traffic per IP address on our machine, our machines usually have a /28 allocation and this is configured correctly within CetnOS however ntop is ...
-2
votes
1answer
1k views

How can I ping through different interfaces (subnets) without using a router device?

I have a big problem around this issue. I want to be able to ping and access TFTP through my WIFI interface (wlan0) through my wired interface (eth0) pc1_eth->LTdhcps2_eth0->LTdhcps2_wlan0->pc2_wlan ...
1
vote
3answers
583 views

Bring up a virtual interface without checking if it's up elsewhere

Is there a way to bring up a virtual interface without it first sending an arping to check if that IP address is already in use elsewhere? I'm working with a proprietary product that recommends ...
0
votes
1answer
41 views

Ping Interconnected PCs End-To-End

I have the following network topology: [PC 1] - - - [PC 2] - - - [PC 3] - - - [PC 4] Each machine is connected via a crossover cable. I can ping from PC 1 to PC 2, but how can I configure things so ...
12
votes
4answers
3k views

How to identify NICs that are connected to the same switch from a Linux box?

Initial Setup As a Linux administrator you have installed a fresh Linux box with 6 NICs eth0 to eth5. The eth0 interface is correctly configured and all other interfaces are currently up but without ...
1
vote
4answers
2k views

Cisco Switch: trigger mac-address table update

If I run show mac-address-table dynamic I get a bunch of mac addresses on that table. But due to the aging parameter, I don't see the mac addresses of all possible devices on the network that come ...
1
vote
1answer
275 views

Cisco Nexus: list all interfaces with their ips

This is the same as this question, but for Nexus: Junos: find out each interface's ip I need to show all interfaces with their respective IPs. I know that on IOS I can get that with show ip ...
1
vote
1answer
226 views

Is it possible plugging in a crossover cable to a 1Gb network adapter fried my adapter?

The host I am working with has two network adapters and is running Ubuntu Server 12.10. In an attempt to network two computers I used a cross-over cable as in the old 100Mbps days. After doing this I ...
1
vote
1answer
966 views

Junos: find out each interface's ip

Sorry if my explanation is confusing. I need to get all the ip addresses of a Juniper Switch and Router (different models). On Cisco IOS I can get that with show ip interface brief | exclude ...
1
vote
1answer
153 views

Extract ip, mask and gateway of a network interface separately

I know that the command ifconfig will give you ip, mask and gateway of a given network interface. I want to "programmatically" extract each of those paramaters separately. At the moment the best ...
0
votes
0answers
77 views

Adding an IP range to SuSE 11

I'm looking to at a /22 to eth0 in addition to the address that is already bound to than interface. I'm familiar with using ifcfg-eth0-range0 in Redhat to accomplish something like this, but not how ...
1
vote
2answers
2k views

Problems bringing up a second virtual network interface

I'm having issues adding a second IP address to one interface. Below is my /etc/networking/interfaces # The loopback network interface auto lo iface lo inet loopback #eth0 is our main IP address ...
0
votes
3answers
2k views

Ubuntu second static IP, ifconfig, /etc/network/interfaces

I would like to add a second static IP to my local Ubuntu 11.10 desktop machine and have it automatically available after rebooting. So far I am successfully using ifconfig to to temporarily set up an ...
1
vote
1answer
560 views

How to execute a script only once, immediately after ALL network interfaces are up in OpenSUSE?

I run Opensuse 12.2. I have 3 network interfaces, eth[012] The interfaces are configured in /etc/sysconfig/network/ifcfg-eth[012] I want to execute a script immediately after ALL three interfaces ...
1
vote
1answer
189 views

Route Traffic Through Linux Server With Two Devices

Here is my current setup (all servers are Ubuntu Server Edition 12.04): Server 0 has two devices, eth0 and eth1. eth0 is connected to the wall (the internet), and eth1 is connected to a switch. ...
1
vote
1answer
263 views

Static network interface settings in Ubuntu [closed]

I am following the guide here to configure a fresh Ubuntu 12.04 server installation (running in VirtualBox) with a static IP address. The recommended configuration in /etc/network/interfaces is: auto ...
2
votes
2answers
278 views

Do newer physical interfaces make a better linux firewall?

At work we use an old (10 year old) linux box with 4 interfaces to act as router/firewall for the network. There's never really been a need to change it since it's stable and handles all our needs. ...
2
votes
1answer
259 views

bridging real and virtual wireless network interfaces

I have 2 wireless interfaces, one real (eth1) and one virtual (vt0), running on top of the same physical wireless adapter. Both have separate IP address spaces. eth1 is connected to a laptop, and vt0 ...
0
votes
1answer
152 views

Binding interface/domain to CouchDB

I'm running CouchDB on a windows 2008 Server and it works good on localhost (127.0.0.1) but when I try to change it to a specific IP or all interface (0.0.0.0) then it doesnt work. I would like to ...
1
vote
1answer
408 views

Writing to /etc/networking/interfaces at boot using sed/awk?

Newbie here, I'm trying to write to an auto-generated /etc/network/interfaces file of a newely provisioned XEN Ubuntu (12.04/10.04/8.04) DomU server at boot time using (currently) sed. The ...
0
votes
3answers
107 views

default virtual network interface

I got a single ethernet connection to a network but with multiple ips. Because of this, I am using virtual network interfaces like this: auto intern iface intern inet static address ... ...
0
votes
1answer
229 views

How to setup an Openvpn server with two gateways to internet

I have an openvpn server behind two wan interfaces: eth1 and eth2 where eth1 is the default gw and eth2 is where openvpn binds to. The problems my ovpn server is replying back to ovpn client via the ...
1
vote
1answer
2k views

Debian KVM host and guests interfaces configuration

I've got dedicated Debian server with Proxmox as KVM manager and such IP example network: IP address 175.19.59.209 Netmask 255.255.255.224 Gateway 175.19.59.193 Now I'm trying to configure ...
0
votes
4answers
1k views

How to convert a local socks server into a local interface?

Exist a way to convert a local socks proxy into a local interface? My problem is that some application don't have the possibility to specify a socks proxy, and I need that all my communication pass ...
3
votes
2answers
2k views

Samba domain trust errors on a specific interface

We have a windows domain that also has a RHEL member server in it. All the servers have a primary network connection to the LAN, but some servers also have private dedicated links to the RHEL server, ...
3
votes
2answers
492 views

Does the network need to be restarted after editing /etc/network/interfaces?

On Debian - Say I have a network card eth0 on my /etc/network/interfaces file, and I want to add a new interface to it (that uses dhcp). Is it necessary to restart the networking service ...
0
votes
1answer
167 views

Cannot reset an network interfaces without a reboot

I have edited the /etc/network/interfaces file and I use the sudo /etc/init.d/networking restart. After restart, the eth1 interfaces don't setup properly. I need a hard reboot to enable this ...
1
vote
1answer
559 views

Ubuntu: Multiple NICs, one used only for Wake-On-LAN

This is similar to some other questions, but I have a specific need which is not covered in the other questions. I have an Ubuntu server (11.10) with two NICs. One is built into the motherboard and ...