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

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39 views

Packets are not routed by iptables, how to debug

I'm using OpenStack and OVS. This is my case: From a remote host, I ping VM with IP A. Local gateway received the echo request, then send a packet with IP A and MAC address A' (based on a fixed ...
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0answers
28 views

Delete quagga/zebra route using ip route

I have a DHCP client running on eth0 and eth1. zebra routes show up automatically when these interfaces get a lease. This is the output of ip route: root@localhost:~# ip route default proto zebra ...
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1answer
101 views

Port forward remote desktop without a gateway over 3G modem router [closed]

I'm trying to connect from a laptop, through a VPN, and a 3G modem/router, to a remote PC / computer. PC (192.168.1.33) | 3G Modem (192.168.1.22) | [3G internet, connecting to VPN] | ...
4
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4answers
186 views

Monitor an internet link to a remote host

I have a Debian Wheezy server running Xivo (let's call it A), this server has 2 interfaces: eth0 and eth1 . There is no default gateway and only a few servers are statically reached from A. eth0 has ...
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1answer
37 views

Restricting access using IP address / Network Redirection?

I have a situation where we have a web server (lets call it A) that is hosting a set of HTTP based services. Due to some client requirements, this web server is not open to the outside world but ...
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1answer
88 views

Is it possible to make the server accessible from two internet connections

how to make this: have: Centos 6.5 WAN1 eth0 44.44.44.44 (DEFROUTE=yes) WAN2 ppp0 95.95.95.95 (DEFROUTE=no) HTTP server work and available only in eth0 DNS server work but port 53 blocked in ...
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1answer
38 views

choosing network interface based on network purpose [closed]

i have 3 NIC with ip address 10.10.10.2-eth0, 10.10.10.3-eth1, 10.10.10.4-eth2 An NFS server with IP 10.10.10.5 and want this NFS share to be accessed only through 10.10.10.3 that is through eth1 ...
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45 views

Add routes for VPN on CentOS

I am a completely new in server routing and VPN. I have a CentOS 6 server with 2 interfaces running (eth0, eth1) and current routes like this # route Kernel IP routing table Destination Gateway ...
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0answers
48 views

Pfsense OpenVPN Site to Site Routing issues

I know this question has been asked a plethora of times before and I have looked over probably 100 different answers and still cant seem to get this to work. Im trying to create a very simple site to ...
1
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1answer
26 views

Qdisc pfifo_fast in linux and IP Precedence

Im using a embedded Linux distribution for a router system. My goal is to prioritize some traffic with minimum delay. I have a WAN interface with a default pfifo_fast qdisc attached to it. I have read ...
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67 views

Linux routing: How to allow a device inside private network to connect a public IP over an unknown network?

Consider following network topology: ---------- ---- (my network) ---- | Device 1 | (.101) | 192.168.191.0/24 | ---------- | | ...
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2answers
25 views

Can a cisco router execute a command itself?

I'm experiencing a problem with my Cisco router 1900 Series, the router sometimes stop routing packets, and when i log into it and show the running-config i see no ip routing executing ip routing ...
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2answers
41 views

Transparent proxy cache on BGP multihome

Provider A have transparent caching with squid . In the situation which a client has multihome BGP with provider A and provider B then client does not send its outgoing traffic (upload) to provider ...
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0answers
51 views

Route public subnet to client location

Due to the fact that my ISP introduced CGN/DSLite and I still need public IPv4 addresses, I was thinking about tunneling an unused /29 that I own from my server to my local Linux box. After doing ...
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0answers
20 views

Problems on using KVM Guest as router

We have two private subnets on different locations BJ and SH. in BJ, subnet is 10.1.0.0/16 in SH, subnet is 10.2.0.0/16 We want them connected, so we build a tunnel through public internet using ...
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2answers
137 views

Windows Route traffic to specific IP through secondary nic

Being reading about this on ServerFault but decided to open a new question, as I can't re-ask over existing threads. 2 computers, 2 nics: Computer A - 100.100.100.10 - 192.168.100.10 Computer B - ...
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2answers
69 views

How to forward FQDNs to Virtual Machines? [closed]

Is it possible to have 2 domain names pointed to two different VMs running under Ubuntu Server? My dilema is that I only have 1 public facing IP address. Here is a graphic of what I am trying to ...
0
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1answer
66 views

Configuring Shorewall for routed OpenVPN

I have an Ubuntu server 14.04 machine that serves as a NAT router. The routing is achieved using Shorewall, mostly in line with this tutorial. The LAN has the subnet 10.0.0.0/24 On this machine I ...
2
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1answer
171 views

How do I set up an IPv6 DMZ with iptables without a static allocation?

I have several networks which are on Comcast's residential network. I need to access those networks from a variety of environments, via an SSH proxy on one of the hosts. (As it happens I'm using ...
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0answers
12 views

Is it necessary to open all used ports when using one Node.JS application to route from port 80 to apps on different ones?

I'm working with an Ubuntu 12.04 LTS, 64 Bit server there I have used the following commands to send all http request on port 80 to port 8080 Commands: cat /proc/sys/net/ipv4/ip_forward #returns 1 ...
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0answers
36 views

Route between two branch offices via IPsec VPN to head office?

I have TMG 2010 running on Server 2008 R2 in our head office with 2 branch offices connecting in using Dray Tek 2930 routers with IPsec site to site VPNS. The remote sites can route between the head ...
0
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1answer
18 views

sporadic routing to another website when opening a common url

I have a strange problem in our office: Sometimes when opening a url from one of our projects in any browser not the right website shows up but some other website. In most of the cases it redirects ...
0
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1answer
119 views

Access to a network server without port forwarding

I have a network with the following structure. The server in PC2 is simple socket server TCP in 8080 port. I need to access to PC2 from other external network by socket client. This socket client ...
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0answers
93 views

Windows 2008 R2 site-to-site IPSEC tunnel with Juniper: tunnel up but packets are lost

I am stuck on this task almost for 2 days. Organized a site-to-site IPSEC tunnel between Juniper and Windows2008R2 machine (let's call it W2008R2 for reference). W2008R2 is a multihomed machine (2 ...
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0answers
36 views

How do I change outgoing ip address for port 80 only

On my linux server I have multiple ip addresses I can use ip route change default via $gateway dev eth1 src $ipaddress to change my default outgoing ip. Can I do this for only one port All ...
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23 views

need to exclude a static route from being redistributed into eigrp

I have some asymmetric routing and need to point a public IP back through my network. We are redistributing static into EIGRP. Does anyone know how to exclude a certain static route from being ...
0
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1answer
512 views

How to configure OpenVPN server to use custom default gateway?

I have a vpn server at address 10.1.0.2 and the server have another ip in it's network -- 10.0.0.2 in his subnet (it's a tun2socks router). But default server's gateway is NOT 10.0.0.2 (and it's ok) ...
2
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1answer
24 views

Hopping a VPN Tunnel

My central office and remote offices are connected to each other over site to site ipsec vpn. We use Fortigate firewalls and everything is working fine. On the other hand, only central office is also ...
0
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0answers
24 views

Amazon EC2 + SSL Godaddy are not routing properly in HTTPS

I have an Amazon EC2 + SSL just installed on GoDaddy. I have successfully managed to install it and get the green https on the main domain https://www.example.com however it doesn't any ...
0
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1answer
502 views

OpenVPN tun routing (can ping tun interfaces) with mikrotik and NAT on both ends

Problem The Mikrotik site is unable to ping anything on the server site. The Server site is less important right now. OpenVPN Server config is on LINUX port 1194 proto tcp dev tun ca ca.crt cert ...
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2answers
89 views

VMware vSphere as gateway to internal network

I'm looking for info if it's possible for vSphere to act as gateway from my external network to an internal network. Basically: The vSphere host is on a 10.0.0.0/24 which is my "external" network. ...
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2answers
233 views

How can I use a gateway on another subnet?

I'm trying my first attempts at routing and hitting the "Network is unreachable" message. My goal is to successfully ping frome one machine (subnet 10.56.34.0) to a machine on a completely ...
2
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0answers
50 views

Openswan bad routing record after connect

I have a problem in openswan configuration. In the routing table create following lines on the client, after connect to server: Dest mask Gateway Conn Metric 0.0.0.0 ...
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0answers
47 views

why this routing configuration does not work?

I have 2 VMs in HyperV role: first is RRAS - it has 2 interfaces (both manually configured, no DHCP): 192.168.1.110 - "external" one, connected to the router 192.168.10.2 - that's internal ...
3
votes
1answer
698 views

How do I route all traffic from clients connected to the DD-WRT to its OpenVPN tunnel tun0?

I am setting a secondary (DD-WRT) router to act as a OpenVPN client so that all clients would get VPN access simply by connecting to the router. But seems clients traffic is always routed via the main ...
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1answer
218 views

Routing between 2 different subnets on 2 different interfaces in SonicOS

I'm having a bit of a problem allowing traffic between two of my subnets. Here's the structure I've built. The X0 interface has our windows server on it and it handles DHCP/DNS, etc. X1 has the WAN ...
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3answers
86 views

What happen when I assign 2 IP on one NIC? [closed]

What happen when I assign 2 IP on one NIC? e.g. I have one physical NIC (eth0) and I assign on this interface 2 IPs from different network. e.g. auto eth0 iface eth0 inet static address ...
0
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3answers
45 views

Adding internal A-record to a second level domain [duplicate]

Just a though- if I add my internal IP address to A-record to a second level domain.com (assuming that I can't add it internally using AD/DNS) Will it work in my internal network? Theoretically, any ...
0
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0answers
56 views

How to add a route for a specific subnet?

I have a Linux computer and an eth0 interface with 2 IPs: ip : 10.10.1.1 mask : 255.128.0.0 gw : 0.0.0.0 ip : 10.22.32.1 mask : 255.255.255.0 gw : 10.22.32.254 I would like to add a specific ...
0
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0answers
43 views

FreeBSD routing for multiple subnets

I have to access a network 10.1.0.0/16 through a gateway 10.4.0.2. I issue the command: route add -net 10.1.0.0/16 10.4.0.2 The machine's IP address where I doing this is 10.4.0.22 and it's default ...
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1answer
80 views

Firewall setup Huawei 4G with DMZ

Network topology: ISP1 | | Alternative ISP 4G | | | Huawei 4G with DMZ | | ...
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0answers
142 views

OpenVPN client routing on TomatoUSB router (gw IP instead of dev interface)

I connect to my openvpn server over Linux (Debian), iOS, Android - everything is ok. But over router (as client) with TomatoUSB firmware it's a problem with routing. I connect to my ISP over L2TP ...
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3answers
387 views

How can I achieve OpenVPN client routing without NAT on Linode

I've set up an OpenVPN network, and it is working properly in the sense that I can access the inner/LAN machines from the remote client. However, my problem is that all traffic from the remote ...
0
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0answers
141 views

Pfsense PPTP VPN Error 806

I was previously using another firewall software and simply by port forwarding port 1723 from the ADSL interface to a Windows Server attached to the LAN, we were able to VPN in. Since switching to ...
0
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1answer
62 views

Network packets flowing both ways but still can't communicate

I have a linux box with two NICS: eth0 192.168.11.14 eth1 192.168.12.14 My routing table is as follows: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref ...
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1answer
175 views

Destination host is unreachable in LAN

I have TP-LINK router which gets internet from fiber optic. Router is connected to Server(Microsoft Windows Server 2008R2). My server has 2 Ethernet Card, first one is getting internet(WAN) from ...
2
votes
3answers
258 views

Setting up gateway on different subnet than IP address

My provider has a (stupid) setup where the IP address for the gateway is on a totally different IP range than the assigned IP address. They insist on doing this for whatever reason. I'm trying to get ...
0
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0answers
42 views

With split routing configuration returning packets don't reach their sender

I am trying to configure a split routing setup, where all traffic goes out the default eth0 interface, while packets from a single client are routed via tun11 (OpenVPN interface). So far I've come up ...
6
votes
3answers
677 views

DNS servers already use anycast. Will adding more IPs enhance scalability?

RFC 1034 requires us to assign at least two IP addresses for DNS servers. However, redundancy can already be achieved by a single IP address if we use anycast addressing. BGP anycast seems to scale ...
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1answer
353 views

PFSense Different Gateway for different Hosts

I have a firewall software currently in use, however I am looking at replacing this with PfSense. I am looking to effectively replicate some of the settings on the current firewall we have in place. ...