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

Default VLAN: 10..0.0/24 New VLAN : 10..8.0/24 DHCP server : 10.*.0.17 I can see the DHCP offer packets making it back to my VLAN ip address namely 10.*.8.31 (from dhcp server message log) Apr 28 ...
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1answer
22 views

Splitting a single fiber connection with multiple public IPs to two separate routers

We have a single WAN connection coming into our office and have 5 public IP addresses from our ISP. We have 2 separate entities underneath our main company and I want to be able to completely split ...
0
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1answer
9 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, ...
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1answer
31 views

How to do static routing via next hop address?

i know the command is ip route [remote address] [next hop address] but how do i implement it? Currently these are the only ones that are connected: CALOOCAN - MAKATI MAKATI - NAVOTAS SWITCH0-PC0-PC1 ...
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1answer
77 views

Connection SSH port 22 via domain name but not public ip address

I have a Draytek router configured to port forward SSH connections to an internal server from specific ip addresses only. Clients and myself can connect externally successfully except one who cannot ...
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1answer
40 views

Better routing path to reduce network latency to China

When I am at home (comcast internet infrastructure), the packets go to either the att backbone router or the greatoaks.ca router and then cross the ocean to China CNC backbone router (219.158/16). ...
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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 ...
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1answer
37 views

problems when openvpn server is not the default gateway

I'm trying to set up an openvpn server on a raspberry pi to act as an endpoint for road worrier connections but the device is sitting on the network, not as the gateway of any of the machines on the ...
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1answer
12 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 ...
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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 ...
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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 ...
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1answer
53 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 ...
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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 ...
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0answers
56 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
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1answer
85 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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0answers
152 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 ...
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0answers
124 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 ...
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3answers
96 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 ...
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1answer
236 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
107 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
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 ...
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1answer
51 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 ...
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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 ...
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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 ...
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0answers
171 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, ...
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1answer
466 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
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1answer
1k 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
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1answer
152 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
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2answers
404 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
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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
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1answer
285 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 ...
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1answer
57 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
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1answer
53 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 ...
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3answers
882 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
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1answer
152 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 ...
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2answers
122 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 ...
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0answers
108 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
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1answer
87 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
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1answer
202 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. ...
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2answers
388 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
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1answer
78 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 ...
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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
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2answers
161 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 ...
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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 ...
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3answers
746 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 ...
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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. ...
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2answers
240 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 ...
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2answers
185 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
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1answer
380 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
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1answer
185 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 ...