0
votes
0answers
3 views

Can't ping IP in LAN [migrated]

I'm using wifi router and I am not able to ping one laptop (A) from other laptop's in the same network. So basically I can ping from from A to B but not from B to A. A is using Windows and has Ubuntu ...
0
votes
2answers
129 views

RV042. Public IP on LAN port. Is it possible?

I have a RV042 router with a public static IP (XXX.XXX.XXX.42) and 4 LAN ports assigned to net 192.168.1.0/24. Can I connect a host to one of the LAN ports and assign it a public static IP ...
1
vote
2answers
41 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 ...
0
votes
0answers
210 views

ZNID24xx-Router public IP

I need to make my public IP the same as my internal one. My router is ZNID24xx-Router, and i'm trying to change the config of port forwarding, but i'm not certain this is the right thing to do and i ...
0
votes
1answer
43 views

IP Forward at router

Is there any way to set a router to simply redirect all traffic to another wan IP address? For example, I have a static wan ip of xx.xxx.xxx.123 and I want to forward all traffic to xx.xxx.xxx.124 ...
0
votes
5answers
1k views

Static ip using a router and DHCP [closed]

I have been trying to understand and achieve assigning a static IP address to my machine, while being connected to a router (WiFi) and using DHCP. My scenario is thus simple, but I think I missing ...
1
vote
2answers
75 views

Restrict access to service to WiFi users

I would like to restrict access to a cloud service based on the network where the requests are coming from. I have control over both the network, and the cloud service receiving requests from within ...
1
vote
1answer
618 views

Shouldn't we exclude a static IP from the DHCP pool?

In my office, I have a printer with static IP 192.168.0.254/24. Normally, it should be excluded from the DHCP pool in the router. So I just set the DHCP pool to be in the range of 192.168.0.2/24 - ...
3
votes
1answer
76 views

MPLS: choice of initial label for an incoming packet

At the entry of a MPLS tunnel, which packet fields are used to determine the label of an incoming packet? Here it says that there are other attributes that are taken into account besides the IP ...
0
votes
3answers
72 views

Can I set up port forwarding to emulate not just a port but another IP address?

I am running a proprietary Windows application which functions like a server. You install the program, and then it broadcasts itself over port 13083. The program is web-based, so it's accessed ...
-1
votes
1answer
58 views

How to integrate a separate sub-network within a customer's existing LAN? [closed]

I work for a machine builder, and our system has it's own ethernet network (192.168.1.x) with a switch and a dozen devices, most of which have firmly established static IP addresses. For our next job ...
0
votes
1answer
32 views

forwarding of small and large packets: any difference?

When it comes to simple forwarding of packets (no errors being generated), are packets processed faster by routers when they are small as opposed to when they contain a large payload? Or do routers ...
1
vote
0answers
37 views

Modems unable to acquire dhcp IPs

I work at an ISP where we use routers (7200) for dhcp. I recently reloaded one of our dhcp routers because we had complaints from many users unable to connect and the dhcp database file it was ...
0
votes
1answer
49 views

Can a router connect an IP network on one interface, and use one of the network's IP on the interface to the internet?

This is part of a question from a networking class. A router has IP 202.55.0.5 on the local network 202.55.0.0/21(through eth0), and uses IP address 202.55.0.6 to communicate with the internet ...
-2
votes
1answer
89 views

How do I find out the internal ip address of a router in front of a firewall

We have a network with a firewall and outside of the firewall the router to connect to the isp. How do I find out what the internal ip is of that router. I do know the external ip, our fixed ip, but I ...
0
votes
1answer
59 views

Multiple webservers behind firewall done correctly?

Basiclly I have a firewall and behind it i have a webserver which is a webportal for clients, a second webserver that hosts their webpages and a DNS server I want to route the traffic through that ...
0
votes
2answers
722 views

Cisco router configuration subnet

I am configuring a router to three different subnet as follow. Sub1: 192.168.1.1-254 255.255.248.0 Sub2: 192.168.2.1-254 255.255.248.0 Sub3: 192.168.3.1-254 255.255.248.0 In my ...
-2
votes
1answer
592 views

Same MAC but different IP on router [closed]

If a device has same mac address but different IP on home router, is this some sort of error or hacking? What is going on? I can't attach a pic so I've listed below. Computer name for second doesn't ...
0
votes
1answer
685 views

Port forwarding behaves differently from virtual server in D-Link router?

There are two pages in D-Link router to setup access to internal network from outside: Port Forwarding and Virtual Server. Both allows to map external port to internal one, except latter page also ...
1
vote
2answers
254 views

routing back to LAN from RV082

We have an RV082 Linksys/Cisco router with a normal configuration of the WAN port connected to the internet, and the LAN port configured as 192.168.188.1. This might be a simple question, but I have ...
4
votes
2answers
313 views

EIGRP neighbors flapping

I have a EIGRP topology set up in GNS3. It looks like this: The neighbor relationship between R7 and R8 is constantly flapping and I cannot figure out why. Hello timers and time delays are all set ...
4
votes
2answers
406 views

Two companies one Internet connection, Passthrough Public IP

My client is the tenant who will be sharing Internet from the other tenant. The other tenant has a WatchGuard in place. I am not familiar with WatchGuard or their interface. The IT guy I am working ...
-2
votes
2answers
419 views

Same Router IP Segment

I was trying to configure my router by following the manual, the IP address is 192.168.1.1 To access it i have to manually give my LAN address of 192.168.1.X which says to be the same segment as the ...
1
vote
1answer
235 views

NAT and ISP Subnet when load balancing on pfsense?

I have a pfsense box that I'm trying to plan the configuration for. I am going to be load balancing two ISP's, each with their own /29 static IP subnet. The question I have is in relation to the way ...
1
vote
1answer
2k views

Linux - set an interface to not fragment packets

I am using a Linux as a router. The machine has two NICs. This router will be used for experiments, so I have set one of it's interfaces to have a MTU that is lower than the standard (let's decide ...
1
vote
1answer
1k views

Is it possible to connect 2 networks with same IP range?

I have two networks with the same IP addresses in use and I need to connect them. I have a third network between the two to connect them but I need to know : - is it possible to communicate iof the ...
1
vote
2answers
680 views

Ubuntu server acting as a two interface router

I'm trying to set up a squid proxy server using Ubuntu server 12.04 I'm very new to Ubuntu but I have managed to get some simple things done. I bought a second PCI interface and have managed to ...
-4
votes
2answers
104 views

How to access an IP address as if on a different network using SSH [closed]

In preparation for a lengthy business trip, I set up my router such that I can access my home computer over the internet via port forwarding over SSH. One thing I neglected to do was setup access to ...
0
votes
2answers
121 views

Local IP address same as Google's external

I'm exampling Google's IPs, but you get the idea. What happens if somebody configures a router's LAN address pool to range from 62.231.75.2 to 62.231.75.255, then his computer's IP address to ...
0
votes
1answer
131 views

Windows 2008 R2 performance IPv6 traffic vs IPv4

Is there reliable stats on performance of Windows server 2008 R2 with intense TCP traffic over IPv6 vs IPv4 ? I know IPv6 header is larger but easier to process for the routers. but what about ...
0
votes
2answers
446 views

PCs with Wired Connection Keep Losing Internet Connectivity

I have a U-verse ATT DSL Internet at our church building. Recently, any computer that is plugged into the network via Ethernet keeps losing its internet connectivity. The setup is from the Modem to a ...
0
votes
2answers
2k views

Are both IP address and default gateway needed on a switch to enable communication between different vlans?

I know that a router is necessary for VLANs to communicate with each othe, but I would like to know if both IP address and default gateway need to be configured on the switch in order for different ...
4
votes
5answers
537 views

Share one IP address with a simple router

We have just moved into a new office and have been given our 'internet connection' in the following form: One Ethernet cable in the corner of the room An IP address with subnet mask 255.255.255.0 ...
0
votes
2answers
242 views

How is a public ip adddress accessible anywhere from the internet?

If my machine has a public ip address, then any one from any corner of the world can access this ip address. How does this happen? I mean where is my ip address updated or where does the requester see ...
1
vote
2answers
481 views

How can I separate a VMWare Server from the host's MAC Address on my router?

I'm running a Debian LAMP Server in VMWare Player, using a bridged connection. However, on my router the VM is showing up with the same MAC Address... therefore I can't set the VM to a static ...
0
votes
2answers
2k views

How to route/redirect my Internet traffic through another router/node on the net?

I am trying to access some content on the Internet which has some stupid geographic restrictions (access limited from a specific country. Most likely the restriction is IP based. I happen to have ...
0
votes
3answers
200 views

How does a physical server and/or a web server work with an IP address or multiple of them?

I'm trying to understand how IP addresses work. For instance, when you rent space at a colo for your server, and say, "I need 20 IP addresses", how are they giving those to you, and is your server ...
0
votes
1answer
183 views

Spoofing Packets?

I host a GameServer and some stupid guy just keeps attacking my Application server with random queries. I have found a solution to block it but he uses different kinds of queries so I have to block ...
0
votes
3answers
3k views

What can I do if my organization is running out of IP addresses?

My organization is going to run out of local network IP addresses within the next few months. We are expanding to get a ton of new people and we are switching over to Lync IP phones. Crunching ...
0
votes
3answers
352 views

View other computers on a two router network

I'm currently facing a small problem regarding a new network setup. I have a few desktop PC's and Ethernet printers that all need to be connected via an Ethernet network. I have 2 routers in the ...
1
vote
2answers
874 views

How do I do IP Failover for my Public IP address with Linux HA

I did a lot of experiment with heartbeat, corosync and pacemaker for IP FailOver which I have to do with Public IP. I did more than one ip failover(VIPs) with two nodes, also with three nodes BUT ...
1
vote
2answers
2k views

backup static route on linux router

How do I set up a backup static route on a linux router. For example if I have 2 routers R1 and R2, connected through a switch, through two links: R1(eth1)->switch->R2(eth1) R1 ...
1
vote
1answer
294 views

More than 8 WAN aliases on routers?

We have a Draytek Vigor 2820 in our office and we have a few servers running websites and email applications. These servers each have their own public ip using WAN aliases that are mapped to their ...
0
votes
3answers
272 views

IP Binding Issue in IIS with Windows Server 2008

I have 2 servers connected to my router. One is running Windows Server 2008 R2 and the other is running Ubuntu. I have port 80 open on my router and sending traffic to Ubuntu. I have port 801 open and ...
0
votes
2answers
469 views

get my router's public IP

I need to get my router's public IP but due to unreliable Internet connection I can not use web services like http://automation.whatismyip.com/n09230945.asp (this approach fails in most cases). Is ...
1
vote
3answers
57 views

HTTP service and local IP addresses

If I am binding a http service to 192.168.1.2, will it make additional requests to my router in order to determine what my local IP is, or it will compare the IP to the local network configuration ...
1
vote
3answers
86 views

Suggestions on routers that would meet my requirements?

From my ISP I am getting one RJ45 Port from the Modem. One IP adress is advertised by DHCP, but beside that I have an IP range I need to use for servers. On the primary IP adress that is advertised ...
3
votes
1answer
286 views

How to allow the internet to view my website on http://192.168.x.x (IP address behind router)? [closed]

I have installed a server in one of my computer, I am using a router, I can go to the server from my other networked computers by defining the ip address in the address bar, like 192.168.1.101. all ...
1
vote
1answer
120 views

Overlapping an IP outside of the router?

Let's say a colo assigns me an IP range 111.222.1.0/26. 111.222.1.1 is the gateway for my usable IP range 111.222.1.2 - 111.222.1.62. I'm using pfSense firewall and have configured its external ...
2
votes
2answers
1k views

Cisco Router - Website Doesn't Work Locally Because Public IP Directs to Router Itself!

I have an RV220W but this issue may apply to other Cisco routers. My website is deployed at public IP address 123.45.67.89/MyWebsite/Default.htm. My web server has an internal IP to which port ...