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1answer
8 views

Forwarding custom page rule for known ip adresses

I want to add some ip adresses to a blacklist, and i want to show these ip addresses in blacklist a custom web page that includes a "you are in blacklist" message on body. How can i do this? I have ...
0
votes
0answers
14 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
19 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
1answer
45 views

Multiple IP addresses

I am developing a number of mobile websites (using IIS), and I want to test them using my mobile device which is connected on the same LAN. I would like to access each website via a different local IP ...
2
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0answers
15 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 ...
0
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0answers
42 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
21 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
0answers
86 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 ...
2
votes
0answers
100 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 ...
0
votes
3answers
88 views

route between 192.168 and 10.10

Two companies in the same building have merged, company 1 has a Novell OES network that uses a 10.10.10.xx network with internet provided through an ASA 5512x firewall (that also provides some DHCP to ...
0
votes
1answer
186 views

Ubuntu Server 15.04 as Router and DHCP Server with multiple subnets

at my company i got assigned to build a new network, where 1 ubuntu server manages DHCP for 3 subnets, allows communication of these subnets between each other and shares the connection to the public ...
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0answers
93 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 ...
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0answers
14 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
1answer
41 views

KVM guest static ip with ports forwarded to another guest

Im on host-machine with Centos 7 and 2 guests on Centos 6.6. I want one of my guests have static external ip but some his ports must be routed to another guest. On host machine I do: iptables -t nat ...
1
vote
1answer
46 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 ...
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votes
0answers
18 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 ...
1
vote
0answers
138 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, ...
0
votes
1answer
341 views

Network behind OpenVPN client

Good day, i have a problem with OpenVPN networking. Main idea is as illustrated, remote OpenVPN server, 2 clients, MyPC and OpenWRT client with its own network with Client_1 and Client_2. I need to be ...
3
votes
1answer
716 views

Static Route Still Uses Wrong Gateway

I have 2 servers connected to our corporate lan (10.0.0.0\24) and also connected to a seperate lan (192.168.1.0\30). I am unable to ping one server from the other on the 192.168.1.0 network and doing ...
1
vote
1answer
132 views

Routing issue on Linux with Mobile Broadband

Note: This is a "cross-post", I asked this same question on "superuser" StackExchange site, but without obtain any answers, just a comment (now curiously disappeared). I've thought this site is ...
3
votes
2answers
274 views

Map IP to another IP

Assume the following scenario, if I have a local machine (A) the requests another machine (B) using B's internal IP without regard the ports. But A and B are not on the same network, however, B has a ...
0
votes
2answers
98 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
1answer
239 views

Route a port through a specific network interface

I'm using OpenVPN on Ubuntu Server to connect to my VPN. That network interface is tun0. All traffic currently goes through the VPN. I'd like to exclude traffic that goes over a specific port, and ...
1
vote
1answer
55 views

Weird routing between two networks

My question seems to be quite simple, yet I can't just wrap my head around it. My setup is like this: Server running RHEL 6.4. It has two network interfaces: ib0: infiniband network (plz don't ask ...
0
votes
1answer
50 views

Can't connect to pre-configured NAS boxes with static addresses and default gateway 172.16.2.1

I received several TeraStation NAS boxes which I can't configure because I can't connect to them, presumably because they were setup for a specific environment. I'm hoping to virtualize the ...
2
votes
3answers
716 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 ...
3
votes
1answer
147 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
2answers
59 views

How to use a server as a “tunnel” in between the clients and the router, in a small network?

Consider a small network with 1 router (192.168.1.1) and clients (192.168.1.x). The router (OpenWRT) provides Ethernet LAN and WiFi for the clients, to connect to the Internet. Now, I want to use a ...
0
votes
0answers
103 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 ...
3
votes
1answer
83 views

IP Routing on All Switches or just Core

I have 1 core switch in our MDF for server equipment and 6 data closet switches that connect clients. At this point I only have IP Routing enabled on the core switch so all IP routing is done in one ...
0
votes
1answer
160 views

How to duplicate multicast packets on several interfaces?

I would like to send a stream from a Linux server to several Linux clients via a multicast address. The clients are directly connected to the server but on different interfaces: bnep0 and bnep1. ...
0
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0answers
381 views

Destination NAT on different Internet IPs with Kerio Control

We are using Kerio Control as our cloud infrastructure firewall. I have two internet IPs (v4) assigned to Internet Interface. I need requests to one of these IP's to be DNATed to a webserver inside ...
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2answers
324 views

How to null route a dns zone [closed]

I have a domain that was attacked and flooding the server apache system. The only way to detour the attack is to reroute the dns off the server. Is there a generic IP like "127.0.0.1" that I can use ...
1
vote
1answer
75 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 ...
0
votes
1answer
87 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
2answers
145 views

EC2 multiple outbound IP addresses setup

I've looked everywhere and haven't found a good solution to the following problem: I'd like to set up an ec2 instance with 2 public ip addresses, with 2 rails servers each using one IP address. They ...
0
votes
0answers
69 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 ...
1
vote
3answers
636 views

Route Subnet to only access 1 IP address on different VLAN HP Procurve

I'm trying to route VLAN 300 which has a subnet 192.168.100.0/26 to only access 10.220.1.10 on VLAN 220 but struggling with the config. HP's documentation from what I can tell just wants me to enable ...
1
vote
1answer
200 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. ...
0
votes
2answers
207 views

Routing between 2 networks and 2 routers

I have a WatchGuard XTM33 and a Cisco ASA 5505, current network is running off of the Cisco and I want to eventually migrate over to the WatchGuard using new IP scheme. ASA 192.168.111.1/24 WG ...
0
votes
2answers
171 views

How to forward traffic to different nics based on source?

I'm a newbie to IPtables, but am looking to do send traffic to a specific card based on the source. Here's what I would like: eth0 - all traffic comes in on this NIC Depending on the source IP, I ...
1
vote
1answer
306 views

Ip-in-Ip tunnel not working — Packets not being decapsulated

I am trying to forward packets from HostA to HostB using ip-in-ip tunneling. While packets are reaching their destination, they are not being decapsulated by the receiving host, and thus being dropped ...
0
votes
1answer
166 views

Adding static routes to remote networks

Having: My local machine (A) A remote router (B) who knows a remote network/subnet (X) My local machine's is located at the default router's (C) subnet, who know the remote router (B), but has no ...
1
vote
0answers
387 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
1answer
6k views

ip route add works manually but throws “Error: an inet prefix is expected rather than …” when run via bash script

I'm trying to run a script that should add this route to a table 11: ip route add local 10.1.3.212 dev eth1 proto kernel scope host src 10.1.3.212 table 11 If I run this command manually, it is ...
0
votes
1answer
57 views

Network card with 2 ips, Application can only listen on 1 IP, want other IP routed

I run an ubuntu server. It has 1 NIC with 2 IP address. it looks like this: # The primary network interface auto eth0 iface eth0 inet static address 192.168.1.23 netmask 255.255.255.0 gateway ...
2
votes
1answer
202 views

OpenVPN redirect-gateway breaks other tunnels

This is my ifconfig setup: eth1 Link encap:Ethernet HWaddr 54:04:a6:49:99:16 inet addr:192.168.0.12 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: ...
0
votes
2answers
907 views

Linux router: ping responses going through the wrong interface

I have a Debian server acting as a router for a small network. It has 3 network interfaces, one LAN and 2 WANs (two different ISPs, let's call them A and B, each of them with a public static IP ...
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vote
0answers
76 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
1answer
489 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 ...