the process by which data packets on communication networks are forwarded into the direction of their ultimate destination by routers.

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Routing with Two Subnets - Azure VPN to RRAS (inside WRT1900AC Network)

In my network I have a Linksys WRT1900AC Router and a Microsoft RRAS VPN Server. The local LAN address is 10.10.1.0/24. In Azure, I have a Network that has a VPN connection to my RRAS VPN Server ...
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1answer
117 views

ARP Request Being Sent To Different Subnet From Ubuntu Linux

This question is very similar to this one: Linux is sending ARP requests to hosts in other subnets? Main problem - Ubuntu Linux server is sending ARP requests asking for a MAC address of a host on a ...
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0answers
74 views

Website inaccessible until host is pinged from client (on a class A subnet)

There is this really weird issue on the internal network, this happens constantly to "random" machines. Machine (client) boots up, goes to some-intern-website-which-is-not-accessible-from-internet....
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0answers
17 views

Iptables vm no outbound connections

I'm currently running Proxmox with a couple of vms. Unfortunatly i only got 1 public ip so i tried to work with nat. Problem is, i can't get outbound connection from my vms. Inbount connections to the ...
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1answer
1k views

MikroTik Configuration - Add a Public Wireless Router (internet only) to Office LAN

Goal Provide internet access for employees' personal devices without providing access to the internal network. Equipment Netgear WNDR4500v2: Wireless router intended for the guest network (has ...
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0answers
38 views

How to alias default gateway IP address

The problem is the following: I have got two dedicated servers at OVH. I have got few virtual servers (KVM+libvirt) and I want to migrate them between two hosts. I already managed to make live ...
0
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1answer
99 views

OpenWRT reroute all router traffic through a Client

I have an OpenWRT router (192.168.1.1) with various wired and wireless clients (192.168.1.x). One of the clients is a Suricata Sensor (192.168.1.100) with only one, 1000MBbit NIC. I want to ...
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53 views

Server 2008 R2 and RRAS

Good Day, Hope someone can help. I am currently working for a private educational institute building and managing a network. I have had to fix quite a bit of this network to get everything to where ...
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1answer
94 views

Can't reach any IP outside of local network on Linux

I am trying to install a Linux distribution while inside an enterprise network. From my Windows installation, everything is detected out of the box. It seems to be the case on Linux as well: I have a ...
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0answers
65 views

ARP issuse in SUSE Linux

I am dealing with a very strange problem. I have a VM running SLES 11 SP4 in VMware Environment. The machine has two NIC. All of a sudden the second NIC stopped working. It's not even pinging the ...
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1answer
96 views

Routing all traffic from a client with changing local subnet over VPN

I have a simple mesh VPN (realized with Tinc) which contains my personal laptop and a VPS with a public IP. Let's say that the server's public IP is 1.2.3.4. The private address of the laptop is 10.16....
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1answer
75 views

multiple default routes with iproutes2

I am very confused by the semantics of ip rules when it comes to the default route. Sometimes, I can have multiple default routes using different gateways: # ip route default via 10.0.0.4 dev eth0 ...
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1answer
26 views

AWS Connecting 2 regions

I've seen ways of connecting 2 regions to be a private network using AMI's but is there not a way to do this via VPC or DirectConnect. At the minute we have: eu-west-1 (11 servers) on 172.16.0.0/...
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0answers
34 views

squid+squidgaurd not working in bridge mode in pfsense

I have installed pfsense on bridge mode and without squid it's working but if i enable to squid and squidgaurd then internet is not working. i have setup as below. internet--netgear-------WAN ...
3
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1answer
145 views

ssh on Ubuntu fails after first time : Asymmetric routes, SSH connection fails to properly establish

I have been baffled by this problem... I have an exs host on subnet 10.128.0.1 and guests on 10.128.20.1 subnet. I have another box on 10.128.0.1 subnet with vms on 10.129.18.1 ... Router is simple ...
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1answer
43 views

OpenVPN bridged mode, cant access private network

I am struggling with this problem and I just can't figure it out. I am using cloud servers and I got a private network from them with ip's 10.99.x.x and netmask 255.255.0.0 I have 2 servers: ...
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2answers
44 views

A small puzzle about routing

This is a followup to this question I saw on SuperUser, to which no answer has been provided. A user deleted the second route in his routing table, # ip route show default via 192.168.73.1 dev ...
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1answer
70 views

How can I add a static route via a remote server?

I have a remote (i.e., 3 hops away) hosted Linux VM, with some LXCs. Those LXCs have internal IPs 10.0.3.* The VM has IP forwarding enabled. From my Windows machine, I would like to ping the inner ...
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1answer
197 views

How can I connect my switch to my fibre connection?

Question We just got our ADSL line replaced with a Fibre optic line. Part of the Fibre-install included a Fibre panel (terminator?) and a Huawei switch. I'm not sure how to connect our existing ...
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2answers
91 views

Routing between the instances in AWS

I have two instances in the same VPC: Linux (172.31.25.177) and Windows (172.31.26.178). I opened all ports in the security group for both IP addresses and they can to connect to each other. Windows ...
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0answers
26 views

Accessing server via public IP gives Connection Refused [duplicate]

I recently fixed up an old PowerEdge 1850 at my workplace. I did a clean install of Ubuntu 14.04LTS Server, using XFCE4 as the desktop environment for remote access. Accessing it via it's local IP ...
2
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1answer
32 views

sonicwall specific wan ip assignment

We have a block of 6 usable IP address from our provider. I have configured the interfaces on the TZ205 router like this: X0 - LAN: 192.168.1.254 Static X1 - WAN: x.y.z.122 Static X2 - DMZ: in ...
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2answers
110 views

Successfully adding routes in an Ubuntu Server 12.04

I have a virtual machine on top of VMware on which I run Ubuntu Server 12.04. I have two network adapters configured for the virtual machine and my /etc/network/interfaces configuration looks like ...
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0answers
153 views

Routing public IP addresses to customers in a WISP setup

We have a fibre leaseline with a /29 range for our pfSense WAN port 61.179.145.40/29 So the WAN of our pfSense box is 61.179.145.42 with a gateway of 61.179.145.41. Our ISP has also routed 61.179....
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0answers
194 views

pfSense Internal Traffic Policy Based Routing

What is the current and correct way to apply policy based routing to pfSense internal traffic (originating from the firewall itself)? Creating a floating rule with the WAN interfaces selected, ...
1
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1answer
40 views

BGP redistribute connected

I used the quagga package to learn BGP in my test Network. So i used the command redistribute connected that sends the Router UPDATE message as expected with all the links. However my task is to ...
0
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0answers
25 views

routing policy messed up in firewall

my Firewall is working weird, i checked my routing policies and i found some messy stuff i have joined my rule list below (executing "ip rule list " several time, waiting about 5 seconds between ...
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0answers
16 views

OpenVPN fail-over, keeping same IPs and certificates?

So I have a OpenVPN server (10.0.0.1), and several OpenVPN clients connecting to it. The server authenticates via certificates and keys generated by easy-rsa, and hands out a unique IP (10.0.x.1) and ...
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1answer
408 views

3 routers with three subnets to connect with each other without conflicts [closed]

I have a network environment with three routers: router #1 uses 192.168.1.x (TP-LINK TL-WR340G using it as switch) router #2 uses 192.168.3.x (SonicWALL TZ200 using it as DHCP and VPN) router #3 ...
2
votes
0answers
98 views

Multi vlan internet access via Watchguard

i'm pretty new to network and routing so i would appreciate some tips on this. I have a firewall(watchguard x1250e), connecting to a switch(Nortel Baystack 5510) with multiple vlans for internet ...
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3answers
86 views

Open VPN Issue, servers can not route properly

I need some help on this issue. Basically I have a server which I have openvpn installed on. It is working fine and I am able to ping the server which I am connected to and can ping back. What I am ...
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0answers
28 views

Linux forwarding packets to remote destinations (not localy)

Network case: Source--Routers ... eth0=LINUX=eth1 ---- some routers.. -- Destination 2.2.2.2 10.0.0.1 192.168.0.1 1.1.1.1 and 1.1.1.0/24 via 192.168.0....
1
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1answer
524 views

IPv6 Neighbor Discovery/Routing Failing for Kernel 3.10

Stupid mistakes led to all of this, read Update 5 I'm trying to setup a Linux Router (LXC, 3.10.0-123.el7.x86_64) with IPv6. The provider is Hetzner and I got 2 subnets, one /56 and a /64. They ...
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1answer
140 views

Openvpn: client can ping server, server cannot ping client

I have weird problem with openvpn setup between AWS and GoGrid datacenters. My network looks like this /----------------\ /----------------\ /------------------\ ...
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0answers
110 views

Routing to a secondary IP address on the same network interface

I am adding a secondary ip address to my eth0 NIC so that I can experiment with making the machine a router. On the router, ip addr show eth0 gives me: 3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP&...
0
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1answer
108 views

How to add an static route on google compute engine

I am building a cluster in the Google Compute Engine and currently I need to add a static route to another machine in the same network, but something is going wrong and I get an error "RTNETLINK ...
1
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1answer
127 views

Routing between EC2 instances not coming through

I want to set up a VPN from one EC2 instance in a default VPC the other instances in the same VPC can use so I am doing some initial tests. I have 2 test instances running and they can ping each ...
0
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0answers
17 views

Disabled Routing and Remote Access

I have disabled Routing and Remote Acces in Windows small business server 2011 standard. Since that users are prompted to enter credentials each time they want to access to a shardrive or network. ...
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2answers
70 views

Setting up a Home (LAN) Network [closed]

I am trying to setup a basic home network to connect 5 computers. I do not need any internet connection. Ofcourse IP addresses should be either automatically assigned or i should assign them ...
0
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0answers
94 views

How to route traffic between tagged and untagged traffic on Juniper EX3300 switch?

I have 3 different subnets as below subnet1: 11.11.11.0/24 tagged with vid 1111 subnet2: 22.22.22.0/24 untagged subnet3: 33.33.33.0/24 tagged with vid 3333 now machines in subnet2 want to ...
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votes
2answers
337 views

can two nic have same subnet but different network? [closed]

Business case: A computer has eth0 and eth1 and eth0 address is 192.168.1.2 (static). The eth0 is used by a configuration software to configure the address of eth1 in the field. eth0 is only for ...
-4
votes
1answer
28 views

How to know MX record details of a subdomain or destination server to which emails are routed in a case co-existent of two service provider [closed]

In case of two co existent service email provider for one domain. How can i know the mx record of a destination server if I don't know the details of a subdomain. Are there any tools to detect the mx ...
0
votes
1answer
32 views

How to delete gateway from default routing table use systemd

There are two physical interfaces on my machine, both with DHCP, so my default routing table looks like this: Destination Gateway Genmask Flags Metric Ref Use Iface default ...
0
votes
1answer
195 views

dd-wrt DHCP forwarder is not working

all. I have a network which a Windows server is running RRAS(192.168.6.1) and another Windows server is running DC,DNS,DHCP server (192.168.6.2). I added a dd-wrt flashed router. The client connects ...
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0answers
550 views

Getting Squid and TPROXY with IPv6 working on CentOS 7

I'm having trouble getting TPROXY working with Squid and IPv6 on a CentOS 7 server. I was previously using a generic intercept setup with NAT, but it was limited to IPv4 only. I'm now expanding the ...
0
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1answer
567 views

Windows Azure: Open all ports to external world

I have tried all options from google. But it seems i'm missing something... I'm trying to open at least one port... But it just doesn't open it. iptables is empty, server is default python -m ...
0
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1answer
52 views

Server 2008 - 1st NIC's traffic stops when 2nd NIC is plugged in

I have a file server running Windows Server 2008 R2 with 2 NICs in the back. These are their configurations: Connection #1 Local Area Connection 10.1.37.6 255.255.255.0 [No Gateway] Connection #2 ...
2
votes
1answer
902 views

Reg Exp for URL in HAProxy

I'm trying to build a reg exp for haproxy that will match the second URL and direct it to a different acl than the first: mysite.com/path/ mysite.com/path/something_random The issue is that my ...
0
votes
2answers
71 views

2 Lans, 1 router, need to ping eachother ip [closed]

I have 2 LANs: LAN 1 192.168.2.1/24 LAN 2 192.168.3.1/24 I have a device on tLAN 2 with IP-address 192.168.3.61. My laptop is on LAN 1 with 192.168.2.100. My final goal is to ping the device like ...
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0answers
149 views

IPv6 VPN routing to IPv4 network

I have been trying to solve my problem to access an IPv6 network from an IPv4 VPN connection for two days now. My setup is as follows: Local Debian IPv4 server <-- OpenVPN --> Remote IPv4/IPv6 ...