2
votes
1answer
45 views

Assign different Hostname to different NIC

I have four network card on my server, I have assigned each with an specific IP now I want to set an different hostname for all the interface? What is the difference between setting the hostname in ...
0
votes
1answer
366 views

Setting 2 IPs on Ubuntu 12.04 with two network adaptor card

There is a VPS runing ubuntu 12.04.3 server on vmware esxi 5. It has 2 valid static IPs and two network cards eth0 and eth1. but only one of the assigned ips is pingable from outside. (both ips ang ...
0
votes
1answer
30 views

Forwarding local network interface on my server through NAT

I have 3 interfaces on my server, first is used for the local network, second and third are internet connections (each has its own ip routing table). How can i force server daemons and command ...
0
votes
2answers
23 views

use-either-port multiple interfaces between three nodes

I have a network of three computers, each of which has two ports. I do not have a network switch (the three ports are 10GbE and the switches are prohibitively expensive for now). I would like to ...
0
votes
2answers
69 views

How can I get a 2nd IP adress from a DHCP-server

If i use static IP adresses i can use more then one per network card, for exemple i can set eth0 to use 192.168.0.1 and eth0:1 to use 192.168.1.1. And if eth1 get a ip-adress over dhcp, can i somehow ...
2
votes
3answers
132 views

how to configure two ip blocks for use on a network

My ISP has given me a /30 and a /27 ip block I can use. for the sake of not giving out my ips I'll use 192.168.1.192/30 and 192.169.1.224/27. I'm not using a router in my setup, I only have a switch. ...
-1
votes
1answer
48 views

Recognizing when my machine has the IP of someone else [closed]

From times to times my computer is very slow in accessing internet or going to the network. Few colleagues of mine suggested that my machine might have the same IP of another one and this would cause ...
0
votes
0answers
470 views

Always get “SIOCADDRT: File exists” when restarting networking on ubuntu

I have a problem very similar to getting error "SIOCADDRT: File exists" when trying to restart network on ubuntu, but it is not a duplicate for reasons explained below. My ...
3
votes
1answer
171 views

ip command vs route command, what's the difference?

I see both ip and route commands used for configuring the kernel routing tables. What's the difference? It seems to me that the ip command is preferred more. Is it so, and why?
0
votes
2answers
572 views

How do I configure dd-wrt to forward IP Protocol ID 50 & 51 traffic to an internal machine?

Please note, I'm not talking about TCP or UDP traffic. Rather IP traffic with the protocol ids of 50 and 51. The point of this being that I can then pass IPsec traffic thru to the internal machine ...
0
votes
1answer
78 views

Assigning Multiple IPs to VM

I have created a VM in XenServer and I'm trying to assign three IPs (local and public) to it. Now as i read from google that I can create three files like ifcfg-eth0, ifcfg-eth0:0 and ifcfg-eth0:1 and ...
0
votes
2answers
2k views

How to route UDP traffic from one public IP (linux) to another public IP(Windows)

I want to prevent direct access of my Windows Machine and want to expose some programs running on it via my Linux Machine (which again is accessible by a Public IP). Is there a way where-in I can ...
1
vote
2answers
62 views

Is it safe to call ip address add from more than one process at the same time?

I have a service which binds many NBD servers to a network interface at startup, each with their own IPv6 address. In order to do this, the addresses first need to be added to the correct interface. ...
7
votes
3answers
24k views

Why ip route add doesn't work, but ip route add with less details and then change works?

I have a problem with ip route add. Surprisingly, I can add the route then change it, but I cannot directly add it: # ip route add 192.168.0.0/16 via 192.168.255.254 src 192.168.1.101 RTNETLINK ...
0
votes
1answer
242 views

ip_queue: full on an SUSE application server. What to do?

An application server (SUSE 64bit) that has my app. on it is emitting "ip_queue: full" message and is refusing connection (e.g. can't ping). My app. is an EJB application that uses JBoss5, and it ...
4
votes
3answers
278 views

Access server via IP v6?

Question: I'm playing with IPv6 and converting it to IPv4 and vice-versa. I wanted to access http://127.0.0.1/ And did the standard ipv4 to ipv6 calculation: AA = 127 BB = 0 CC = 0 DD = 1 with the ...