similar to: route question

I am trying to setup some rules on a box with 3 nic cards. Two internet connections and one office connection. eth0 is office eth1 is internet T1 eth2 is internet Cable when I do "iptables -F" then iptables -L everything is gone as it should be. Then I do iptables -t nat -A PREROUTING -p tcp -d $MYIP --dport 6550 -j DNAT --to $INTERNAL_ADDRESS:6550 iptables -t nat -A POSTROUTING -d

I have 2 machines running centos. each machine has 2 network cards. Box 1: eth1: T1 connection 74.X.X.X eth0: office connection 192.X.X.X Box 2: eth1: Cable modem 24.X.X.X eth0: office connection 192.X.X.X How do I issue a route command on each box so it will use eth0 as the shortest route between the two boxes??? Thanks, Jerry -------------------- On Box1 the route is: [root at mndemo ~]#

We use a dual homed CentOS-6.3 host for our Internet gateway router. Its internal nic (eth1) is configured such that the address 192.168.0.1 is one of its aliases. # cat /etc/sysconfig/network-scripts/ifcfg-eth1:192BOOTPROTO=none BROADCAST=192.168.255.255 DEVICE=eth1:192 IPADDR=192.168.0.1 IPV6INIT=no MTU="" NAME="LAN - Non-routable" NETMASK=255.255.0.0 NETWORK=192.168.0.0

Hello, I am new to network routing and I need help configuring a linux box with two ethernet cards. In this case it''s a Linux RH 7.3 box, in a cabinet that already has a couple of Windows servers. The Windows server routing is below as an example. The Linux box has an out-of-band interface at 10.130.36.38 and a public eth at 62.50.8.84. I had to add a route for the private interface so

Weird behaviour. A couple of days ago I installed another DSL router. During the process I have somehow caused the default gw route to disappear - on system start up the interface comes up fine, I can see and connect to the local subnet but not to the internet. [rkampen at timsws network-scripts]$ route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref

If understand the setup correctly based on previous emails, it looks like this: [Internet] <-> [202.172.122.211 (eth1) {Gateway Machine} 202.172.122.74 (eth2)] <-> [202.172.122.75 (eth1) {Other Machine}] So, according to your emails, your external (eth1) interface on the Gateway machine ** needs to be .209 not .211 or .210 ** (as this is where the ISP''s

Hi. I have a system with two network cards -- eth0 is a public ip address and eth1 is on an internal network. Now I have all the packet forwards enabled, and there is a route from eth1 to the internal network, but if a computer on the internal network sets his gateway to the box, he can''t traceroute past the box to the internet. There are no iptable rules yet. Here is the routing

Hi,all, I cannot get my network in domain1 work. Here is my configuration: in dom0: I have two network cards, the ip addrs are 141.213.10.110 and 192.168.0.4, respectively. 141.213.10.110 is an external IP and can access internet directly. The gateway should be 141.213.10.1. /etc/xen/vfp: the domain1 configuration file, I created domain1 using ''xm create vmid=1 -f

I have a server located remotely running CentOS 5.x. I need to have two IP's on the same interface. So I have this: /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 BOOTPROTO=none BROADCAST=69.x.x.199 HWADDR=00:x:x:x:c6:10 IPADDR=69.x.x.194 NETMASK=255.255.255.248 NETWORK=69.x.x.192 ONBOOT=yes GATEWAY=69.x.x.193 TYPE=Ethernet So I added this:

Hi all, I have a similar question like many asked before I know but Please help as i cant figure out where the problem is and how should I tackle. I have 2 ISP connections. I want to share the bandwidth from both. I have copied the script from many places and created my own after changes. Problem is that only one connection is utilized at a time. Not both working. ratio of consuming

Hello everyone I am running into some strange issues when configuring networking interfaces on my physical server running Centos 7.5. Let me give you an overview of what's going on: We have a physical server, running CentOS 7.5. This server has one 4 port NIC and one 2 port NIC and a Dell IDRAC port. The first port of the 4 port NIC, em1, is used for Management traffic. The first port of

Hello! I''ve got CentOS 5.3 x64 as dom0 and the same OS for domU. I''ve installed it using the following manual: http://www.howtoforge.com/centos_5.0_xen Guest image was taken from stacklet.com Unfortunately, I can''t make domU working with public static IP. When I use bridged networking, the guest don''t have network connection at all. When I use routed

Is anyone using user sets? I''m considering dropping support for them in 2.0 in favor of just listing individual user/groups in the rules file. Thanks, -Tom -- Tom Eastep \ Nothing is foolproof to a sufficiently talented fool Shoreline, \ http://shorewall.net Washington USA \ teastep@shorewall.net

dear All, I'm facing this routing problem, the setup is actualy part of ltsp, but I think this problem is Centos-specific. The server is a Dell Poweredge R210. The install is standard 6.4, updated. I have one nic facing the public internet: vi /etc/sysconfig/network-scripts/ifcfg-em1 DEVICE=em1 BOOTPROTO=none HWADDR=d4:ae:52:c1:28:2b NM_CONTROLLED=no ONBOOT=yes TYPE=Ethernet

Hi im trying to configure centos to run as a dhcpd daemon but it simply doesnt work I'm using the default configuration file from dhcdp (and tried multiple alternatives). problem is that pxe clients do not aquire dhcp addresses in the log i can see that there are 3 or 4 dhcp offers per boot atempt but no dhcp requests anyone? i'm going crazy here... .i've tryed 3 diferent

Hi All I have two hosts. Host A and Host B Host A routing table ------------------------ [root at localhost ~]# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 172.29.110.0 172.29.109.1 255.255.255.0 UG 0 0 0 eth0 172.29.109.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0

Hi all Iam trying to implement "route add " using netlink. The changes are not reflected in the routing table. I have given my code and screen shots of the routing tables. Can anybody tell me is there any mistake iam making in defining the fields . or any other mistake iam commiting thanxs viji //////////////////////////////////// CODE

Hi all, I have a debian server with 4 network cards: The first card is used to connect to public network and this network connects with a big router. The Second, third and fourth cards are used by other networks. The first card used a dinamic route with the big router. The other cards used a static route with a little router. All runs good but my problem is when I try to use the IP of my first

Hello list, We have KVM setup using libvirt (0.9.0) as configuration device on a Debian Squeeze Host. Networking is done in routed bridge mode and we have two different subnets, as well as one main ip. Subnets get routed to the main ip (this is done by our provider). Network on hosts are done like this: <network> <name>subnet_1</name>

I have a CentOS 6.4 VM that is getting its DHCP information from dnsmasq (a libvirt instance). However, it is not applying the routing information. Attached is a tcpdump of the dhcpc output. You'll see: Default-Gateway Option 3, length 4: 192.168.122.1 However, when I run 'route -n', I get: # route -n Kernel IP routing table Destination Gateway Genmask