The interfaces tag has no wiki summary.
-3
votes
0answers
38 views
iscsi or sas ? Which is better [closed]
I'm looking at ordering a storage unit with 24 sas drives, dual controllers, power supplies. The controllers come in either iscsi or sas. I am not sure which is the better way to go. Has anyone had ...
1
vote
3answers
40 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
37 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
372 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
218 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
37 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
147 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
66 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
37 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
57 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
243 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
1answer
424 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
138 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
77 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
votes
2answers
58 views
What are the methods of separating network spaces in a LAN? [closed]
Please detail me the methods.
My thoughts:
put the servers in separate (sub)networks
the servers are forced to go through the firewall but no NAT is required
assign more IP addresses to the ...
1
vote
1answer
115 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
206 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
130 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
82 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
143 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
91 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
111 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
904 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
0answers
27 views
Select gateway with two interfaces
i have a windows server with two interfaces. The first one links to the LAN to clients, the other one links the server to the internet gateway.
To exits the localnet my server uses the LAN than the ...
0
votes
4answers
478 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
359 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
271 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
146 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
306 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 ...
2
votes
3answers
867 views
linux vlan routing
I've got this network topology:
network 192.168.100.0/24 vlan 100
network 192.168.200.0/24 vlan 200
one ubuntu server(2 vlans on 1 ether)
eth0.100 (ip:192.168.100.10/24)
eth0.200 (ip: ...
2
votes
1answer
2k views
Routing OpenVPN tunnel in via public interface and out via NAT'd interface (to internet)
I hope someone can help...
I want to Configure OpenVPN-AS (i.e. OpenVPN Access Server, NOT OpenVPN) to work on my VPS. The VPS is a KVM running Ubunto 10.04 LTS, with a very vanilla configuration. ...
1
vote
1answer
3k views
Setting a static DNS nameserver (Debian Squeeze)
I have a gateway running on Debian Squeeze with 2 network interfaces, one static (internal, eth0) and one DHCP (external, eth1). I have an internal DNS server that I want the gateway to use.
In my ...
0
votes
0answers
72 views
Networking wlans and vlans
If we are using a router why do we need to create bvi?
Can't the router route the packets to wired as well as wireless clients? Why create bvi?
0
votes
1answer
516 views
How to set network interface affinity under Ubuntu Linux?
I have a multihomed linux box with 6 network interfaces that I'm using to run some tests of router hardware. I would like to be able to set "NIC affinity" (for lack of a better term) on an arbitrary ...
0
votes
1answer
508 views
Cacti CDEF function to plot several interfaces on one traffic graph
The final graph I want to plot is similar to below graph.
CDEF function to plot this graph manually (through command line) is like:
DEF:t1=$RRD_PATH:telnet:AVERAGE \
DEF:t2=$RRD_PATH:smtp:AVERAGE ...
0
votes
1answer
129 views
Linux: Interface statistics missing packets?
I have a server with a network interface connected to a switch port that is configured to mirror all the traffic that goes through the switch, which means that if I run tcpdump on that interface I see ...
1
vote
5answers
1k views
Virtual interfaces with default routes
My Ubuntu Server has one physical interface eth0. I want to assign 3 ip's (different subnets) to the server. I cannot use the default virtual interface creation tools like ifconfig or ip addr add ...
2
votes
2answers
161 views
Networkconfig on Debian-based Linuxes
Question: I've some Debian or Ubuntu based servers here with
allow-hotplug eth0
and some with
auto eth0
in /etc/network/interfaces. What is the difference between them? If I'm correct, both ...
0
votes
2answers
394 views
Ubuntu Server gateway networking issues on VMware Workstation
I have two Ubuntu 10 Server VMs on VMware Workstation, using bridged networking. I want to route internet traffic to ServerB through ServerA. At the moment, ServerA can access the internet, but not ...
4
votes
1answer
917 views
Syntax for include files in /etc/network/interfaces
I want to organize interface aliases (for example eth0:1) in separate files (/etc/network/conf.d/eth0_1.cnf).
Anyone know the syntax to load this external file from /etc/network/interfaces, or where ...
2
votes
2answers
362 views
ip over specific network interface
I have two network interfaces with respective ips
eth0 : 192.168.70.153
eth2 : 192.168.70.155
when I make
route -C
Kernel IP routing cache
Source Destination Gateway ...
1
vote
1answer
76 views
Unexpected auto-route after adding a new /29-Net
I added a new Network to a Debian 6.0.1 x86_64 Linux 2.6.32-5-amd64 Server with this configuration in the interfaces:
allow-hotplug eth2
iface eth2 inet static
address 172.251.1.86
netmask ...
1
vote
2answers
4k views
how to configure modprobe to recognize newly installed driver for eth1 on bootup?
I have a server running Debian 6. My motherboard has two interfaces, eth0 and eth1. Debian does not have a driver for eth1 (e1000e), so I installed the driver provided by Intel (e1000e-1.4.4). ...
0
votes
1answer
630 views
IPTables - Blocking ports on eth0:x Network Interfaces
I'm wondering, is it possible to block certain ports on different interfaces such as eth0:0 eth0:1...
For instance, if I want to block on eth0:0 ports 22 and 25 and leave those open on eth0:1 I'm ...
1
vote
1answer
270 views
Solaris 8: Assign equal priorities to multiple primary interfaces connected to the same network
I have a machine with Solaris 8, and it has multiple interfaces that are connected to the same network which means they all have metric 0 (1 hop) to the default gateway.
assume:
e1000g0: ...
2
votes
3answers
321 views
Linux router with 4 NICs not working
I'm setting up a Linux based router, with 4 NICs, and I can't seem to convince it to work, despite following steps suggested on various web sites.
Each interface is on a separate subnet as follows:
...
1
vote
1answer
445 views
eth0 doesn't start after interfaces modification
Just installed Ubuntu Server 10.04 on VMWare ESXi 4.0.0 (201167) and changed the interfaces file.
My (modified) interfaces file looks like this:
auto lo
iface lo inet loopback
iface eth0 inet ...
0
votes
2answers
184 views
Windows to configure IIS Website to use a particular physical network interface
How to configure on Windows 2003 server such that:-
when I access my website on the server, it uses IP address A.A.A.A
when my program runs it uses IP address B.B.B.B
Both A.A.A.A, B.B.B.B is ...
4
votes
1answer
15k views
What is a Cisco BVI interface? What is it used for?
I have been Google'd and searched for the answer to these questions, but I cannot find a simple answer.
So my questions are about BVI interfaces. What are they? Why do you use them? In what scenario ...
0
votes
1answer
243 views
How to config 2 interface with pptp?
In this topic Which is the best OS for PPTP ? :
server with this CPU and 2 Intel
PRO/1000 network adapters really
handles ~2 hour peak of 250MBit/s
internet traffic on one interface and
...
