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2
votes
3answers
892 views

OpenVPN client on a windows 7, packets not routed

I have an OpenVPN client on a Windows 7, that connects to an OpenVPN server with tap. The tunnel establishes correctly. AFAIK, tap means that my virtual adapter is 'virtually' connected to the remote ...
2
votes
2answers
174 views

Network topology for both direct and routed traffic between two nodes

Despite it's small size, this is the most difficult network design problem I've faced. There are three nodes in this network: PC running Windows XP with an internal WiFi adapter.Base station with ...
1
vote
2answers
165 views

Forward 192.168.1.x to 95.211.x.x

I want to forward an internal IP address to an external one. So here's what I do: echo 1 > /proc/sys/net/ipv4/ip_forward Then I use iptables: iptables -t nat -A PREROUTING -s 192.168.1.x -j ...
0
votes
2answers
107 views

Is a “bridging device” required to join two networks?

We're considering two NBN fibre connections to the Internet (NBN is a fibre connection for those of you not living in Australia), with each connection having it's own subnet. The first connection's ...
0
votes
2answers
568 views

How to config two different ip and gateway on two different NIC

Sorry for my poor english in advance. I don't know how to config my adapters for this specific situation as i explain below. i have two NICs, one for web server and internet vpn and another for ...
-1
votes
2answers
184 views

Webserver Multiple Gateways

I have Ubuntu Server 12.04 I have 3 gateways on my lan 10.0.0.1 10.0.0.2 10.0.0.3 Ubuntu has 3 NICs eth0 10.0.0.60 gw 10.0.0.1 eth1 10.0.0.61 gw 10.0.0.2 eth2 10.0.0.62 gw 10.0.0.3 If a request ...
3
votes
1answer
154 views

When is route lookup performed when a packet flows through iptables?

Iptables is often illustrated using diagram I fail to understand when route lookup (routing tables) is performed: inside the "Routing Decision" grey boxes? If so, does it mean a packet is routed ...
1
vote
1answer
58 views

Multiple public IPs routed via Cisco ASA to Proxmox VMs

I have a network with IP 199.221.2.136 (/29). I would like the Cisco ASA5505 [1] to work on .137 as router and use two public IPs (.138 and .139) on two VMs on a Proxmox server. Not sure how to route ...
1
vote
1answer
79 views

RHEL Routing with 3 nics

I am trying to get my routing to work on my RHEL 7 with 3 nics and 3 subnets. I have the followig nics DEVICE=eth0 BOOTPROTO=sttic ONBOOT=yes TYPE=Ethernet USERCTL=yes PEERDNS=yes IPADDR=10.241.78.5 ...
1
vote
1answer
216 views

How do I set up an ssh -w tunnel VPN between AWS VPC and a Linode?

I'm probably not going to use this for the long term, but I still want to know why this isn't working. I've set up a simple ssh tunnel from my Linode instance to one AWS EC2 instance within my VPC. ...
1
vote
1answer
524 views

iptables rule to set source IP depending on local userid

I have two users, alpha (uid 500) and beta (uid 501), and two IP addresses assigned as eth0 and eth0:1. I would like all outgoing packets originated by processes started by user alpha to be marked ...
1
vote
1answer
867 views

Edimax Dual WAN: how to sent trafic to a specific destination IP over a specific WAN interface?

I have a Edimax BR-6624 Dual WAN router in my office. I've enabled load balancing to utilize both internet lines. I want the router to use only one (specific) WAN interface when I connect to a ...
0
votes
1answer
24 views

Intervlan routing--DHCP offer from server on default VLAN not making it back to newly created vlan via layer 3 switch

Default VLAN: 10.36.0.0/24 New VLAN : 10.36.8.0/24 DHCP server : 10.36.0.17 I can see the DHCP offer packets making it back to my VLAN ip address namely 10.36.8.31 (from dhcp server message log) ...
0
votes
1answer
10 views

Trouble routing between interfaces on KVM host

Summary: VMs on host in different subnets can reach each other, but VM on subnet B cannot contact host's interface on subnet A. I am not sure if this is a product of my lab setup and firewall rules, ...
0
votes
1answer
87 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 ...
0
votes
1answer
89 views

HP RIP on LAN Topology

We have 1 main core HP Routing Switch in server room that connects other data closet switches and 6 Data Closet switches that connect the clients. We only have 3 VLANS. I have 2 questions: 1.) ...
0
votes
1answer
161 views

Proper destination routing on same interface, same subnet but different gateway

How to make sure, on the same interface, to properly route traffic to the same subnet, based on availability of a gateway? e.g. 10.1.1.1/24 interface eth0/1 gateway 10.1.2.1 pref 10 metric 1 ...
0
votes
1answer
678 views

weird routes automatically being added to windows routing table

On our windows 2003 domain, with XP clients, we have started seeing routes appearing in the routing tables on both the servers and the clients. The route is a /32 for another computer on the domain. ...
0
votes
1answer
92 views

Windows 2003 Std HTTP issues (also affects windows updates)

I have 3 Windows 2003 servers in a domain. Server 1 is running the AD and VPN roles. Server 2 is running Exchange 2003. Server 3 is running some third party network apps and was supposed to be running ...
0
votes
1answer
139 views

Server 2003 and XP Client; Why are HTTP connections being silently dropped

On my network, my edge-router, a windows 2003 r2 server router with all the latest updates, will drop packets, but only under specific circumstances. I have troubleshot and isolated it down to the ...
-1
votes
1answer
75 views

how to 2 ip virtual in public dan private with forward to different destination

Here my case, Server 1 public IP in 1 box (eth0) -> 203.x.x.55/28 and 57/28 gw 203.x.x.49 private IP (eth1) -> 10.10.8.1 Server 2 private IP in 1 box (eth0) -> 10.10.8.5/24 and 7/24 gw 10.10.8.1 ...
-1
votes
1answer
252 views

Can 2 IP's in the same network communicate with 2 different netmask

I need to expand a network really quick and don't have time or access to change the netmask of all devices. Can the following communicate? IP 1 - 192.168.10.10 mask 255.255.255.0 IP 2 - ...
2
votes
0answers
21 views

Cisco Switch Routing performance monitoring

It is quite a question for me: I have Cisco Catalyst 2960S switch which is nice hardware even despite its age and EOL. I'd like to set it as small router between several networks within a remote ...
2
votes
0answers
126 views

Can't communicate between multiple interfaces on same subnet

I have multiple ethernet interfaces on one machine, all on the same subnet. Normally these are set up to run on separate VM's, and I understand the limitations imposed by Linux as described here, but ...
2
votes
0answers
555 views

IPSec VPN : Traffic not routing correctly

We have a server which is windows 2008 running on a VPS with a single public IP address. I've configured the firewall to allow IPSEC VPN connections to be established with our Draytek routers at ...
2
votes
0answers
511 views

Forward IP packets to tunnel device

I have created an tunnel device using ip tuntap add dev tun0 mode tun user 0 group 0 I then assign it an ip address 192.168.0.1/22 ifconfig tun0 192.168.0.1 netmask 255.255.252.0 On my ...
1
vote
0answers
42 views

Route traffic between OpenVPN networks

The goal is to have main OpenVPN server and multiple OpenVPN subnets that are reachable for main server clients. All subnets' servers are clients of the main server too. Here are configs: main ...
1
vote
0answers
172 views

IPTables, route specific port through VPN

I'm running my own mail server at home on a dynamic IP. Dynamic IPs are often blacklisted, so I currently send out mails through my provider's relay. I want to change that to sending mail directly, ...
1
vote
0answers
426 views

Shorewall: DNAT to IPSEC tunnel zone not routing correctly

I have a ipsec tunnel working that gives access to a 192.168.4.0/24 lan. It is working fine and I can access hosts on the other side without problem: # from fw and lan hosts: # ping 192.168.4.44 PING ...
1
vote
0answers
80 views

Inter VLAN Routing

I have VLAN 1 and VLAN 2 setup on HP ProCurve Switch, each linked to a different scope on DHCP server. VLAN1 = 10.220.0.0/23 VLAN2 = 10.210.0.0/21 I can't ping VLAN1 devices from VLAN2 and vice ...
1
vote
0answers
164 views

ip routing of multiple virtual IPs on one ethernet card

I am working on a live network of multiple boxes and routes with a long history of changes. I am trying to consolidate them with the minimum disruption. I'd like to get rid of some old routers and ...
1
vote
0answers
225 views

Cisco 800, RFC1483 Routing, no nat, block public IPs

My issue. IP traffic to public IPs does not work. Traffic outbound works fine. Thus, I cannot access 91.x.x.162 from www. Thus no route for IP back to 91.x.x.162. The connection works in part as: ...
0
votes
0answers
47 views

VPN Internet Access on a Zyxel SBG3300

I have Zyxel SBG3300 VDSL router that connects to ISP using VDSL and L2TP. The configuration was provided by my ISP - when I checked it seems like the VDSL modem first establishes a connection and the ...
0
votes
0answers
30 views

Netgear ProSAFE S3300 Inter Vlan Routing Jumbo Frames

If I have a vlan for all 1500 MTU devices and a separate VLAN for 9000 MTU devices, will the Netgear ProSAFE S3300 fragment packets from the 9000 MTU vlan to the 1500 MTU vlan automatically or will ...
0
votes
0answers
57 views

How to set up routes and rules at Debian gateway to bypass VPN for certain hosts?

I built my own router running Debian 7, having two NICs: Internal ethernet, eth0: 192.168.42.0/24 External link to VDSL modem, eth1: 10.42.42.42/8 (address arbitrary, just used for PPPoE). I have ...
0
votes
0answers
155 views

Proxmox routed network,“Destination Host Unreachable” on external IPs from node to guests

I've set up a Proxmox system and have 2 guests running successfully on it. They are able to be accessed on the private network that I have set up, and are able to get out to the internet ok. I'm ...
0
votes
0answers
108 views

pfSense + OpenVPN: Can not Ping Remote LAN

Problem: I can ping pfSense OpenVPN server from the OpenVPN client, but can not ping devices on the remote pfSense/OpenVPN LAN. Situation description: Below diagram displays my small test network ...
0
votes
0answers
16 views

Static routing ISSUE

I have two subnets 10.10.10.216/29, 10.10.10.10.224/29 from the ISP IN firewall assign the IP address like: interface e0/0 nameif outside ip address 10.10.10.218 255.255.255.248 ! interface e0/1 ...
0
votes
0answers
21 views

ProCurve 2626 VLAN routing issue

I have a pair of Procurve E26262's that are our Distribution and POE switches. They are configured with a Default VLAN for data with an IP address of 192.168.1.218, and a VLAN 100 for VOIP with an IP ...
0
votes
0answers
109 views

Route part of a subnet to a different gateway

Data network is 10.220.0.0/20 DG is 10.220.1.19 I am trying to have all traffic in 10.220.8.0 - 10.220.15.255 (10.220.8.0/21) routed to this gateway: 10.220.1.251 I can't seem to accomplish this at ...
0
votes
0answers
70 views

Linux Redhat inbound NIC routing

I am running a SIP application on a Redhat Linux server with 4 nics on separate LANs. SIP runs on UDP port 5060. When I send a inbound packet to port 5060 NIC0, the packet gets delivered to the ...
0
votes
0answers
180 views

vServer: Configuring single (/128) assigned IPv6 addresses for use as IP address pool for IPSEC (Strongswan) road warriors

I've a new (dev) vServer up and running. Unfortunately the provider only hands out single IPv6 addresses (not even /64 subnets). Now I am a bit confused how to achieve the following: I want to use ...