a device that connects to 2 or more networks and is capable of forwarding data packets into the direction of the ultimate destination based on information read from the packet and internal routing tables.

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40 views

BOOTP on Juniper 4200 stack works one one subnet, not another

I have a Juniper Stack that connects vlans 10,11 and 50. 10 is servers, 11 is desktops and 50 management. Bootp is redirecting DHCP requests to a AD box on 10.x just fine for 50 vlan, and worked well ...
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1answer
42 views

Reachability with OSPF on firewalled network

I'm trying to figure out how OSPF establishes routes when used on a network with firewalls. Say I have four routers (A, B, C, and D) and two firewalls (F1 and F2), arranged like so: (LocalA) A - F1 ...
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0answers
56 views

tc traffic shapping HTB in Linux-based router

I use an Android device to be a hotspot router. In fact, the behavior is similar to a Linux OS router. There are parts of functions in Android. Now, I try to use tc command to limit bandwidth of end ...
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0answers
75 views

Can we use ICMP redirect message to pass routing information among interior routers in an autonomous system ?

Can we use ICMP redirect message to pass routing information among interior routers in an autonomous system ? why or why not? I know that routers send out ICMP redirect message if they find a better ...
1
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0answers
27 views

Juniper 802.3ad Link between Switch and Router 3x link issue

We have a live 20Gbps link between our switch and router and we are trying to add another 10Gbps link to the LAG, we've changed all the settings on both end to add the third interface to the LAG yet ...
1
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1answer
346 views

Configure DSL line with static IP addresses and PPPoE?

I have a business class DSL line with AT&T and I have assigned to me a set of 5 static IP addresses that I need to setup for use. The account was recently changed over from a Standard DSL line ...
0
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2answers
47 views

Wireless Clients unable to connect to internet

Our small office network consists of 2 windows 2008 servers, and 14 workstations (8 running windows 7 and 6 running windows xp) and 1 router(wired/wireless). The main server has DHCP, DNS, Active ...
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2answers
245 views

Linux server not receiving default IPv6 route over PPP link

I'm replacing a pfSense router in a remote office with a small linux device, running Debian. The router only has to handle very basic iptables / DHCP and VPN facilities. It is configured so that the ...
1
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2answers
78 views

Cisco Router Setup

I am helping a friend set up a network for his new business and am having issues setting up the router. I am by no means a network expert. He has a Cisco 2921 router and I have it set up as follows: ...
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2answers
219 views

Can a computer route IP trafic between two LAN if it is not configured as gateway? [closed]

Having two LAN, each one have its own gateway, DHCP and internet connexion LAN 1 - IPs: 192.168.0.0-255, Mask: 255.255.254.0, Gateway: 192.168.0.1 LAN 2 - IPs: 192.168.1.1-255, Mask: 255.255.254.0, ...
0
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1answer
82 views

ADSL Router - Access External IP internally

I have a problem when I'm doing an access using my DNS hosted at another server, which performs a redirect to my internal network. example: User attempting access to internal DNS: intranet.site.com: ...
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1answer
23 views

Uninstalled server 2008 now router won't handle DHCP

My set up is this. server behind router, router has a server and switch connected to it with multiple computers. router used to serve DHCP and DNS, a couple of days ago installed AD, DNS and DHCP on ...
0
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1answer
55 views

HP MSR20 Router VPN Questions

I have limited experience with routers, I was wondering if some offer some insight. I am considering deploying a series of HP MSR20 (or similar routers) at a number of satellite offices which have ...
0
votes
1answer
62 views

Forward DNS requests from router

I've got a server behind a router and I'm trying to use my server as my DNS and DHCP service. I have them configured correctly, and I can connect out through, but I cannot seem to get my router to ...
2
votes
1answer
80 views

Configuring Dialout with the Cisco 2500 router

I'm working on configuring dialout with a Cisco 2511 router and external modems. The end point is a dial-in server, which will create a ppp connection. I use this guide as a reference but it only work ...
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1answer
48 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 ...
2
votes
1answer
374 views

Is possible in Router Load Balance TP-Link TL-R470T+ use always same WAN (WAN3) for specific port

It is possible that all the traffic that pass through the port 25, goes by the same WAN interface? My router is http://www.tp-link.us/products/details/?categoryid=&model=TL-R470T%2b
0
votes
1answer
54 views

Tell router to make traffic only over one special ip address [closed]

I have two routers. A - is connected to the internet B - is connected to A router's network A has some clients (notebooks, computers, printers, etc.). B has also some clients. B clients are not ...
0
votes
1answer
131 views

Client Router Causing Wireless Bridge Connectivity Issues [closed]

I have an issue that I can't seem to figure out on my own. Whenever I power on a client router, it causes connectivity issues with another router, which functions as a wireless bridge. The ...
0
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0answers
34 views

Capture packets from Access Point in bridge mode

From a linux router I would like to capture all incoming packets from a certain Access Point IP which is configured in bridge mode. Is it posible with some tools? tcpdump does not show me anything. ...
2
votes
4answers
376 views

Linux - two subnets, one interface, one gateway - NAT the additional subnet

We currently have a few servers that all use the same LAN: Host1: eth0 10.0.0.1/24 Host2: eth0 10.0.0.2/24 Host3: eth0 10.0.0.3/24 Gateway: 10.0.0.254 We want to run some VMs (VirtualBox) on these ...
0
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0answers
64 views

Realtime dynamic traffic shaping per ip

I have a wireless and wired network shared among several users. There is a linux router which acts as dhcp server and gateway. I would like to split the max bandwidth available from ISP (20 Mbit) over ...
0
votes
1answer
28 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 ...
0
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0answers
17 views

Acceptable time interval before attempting to reset a connection?

I am writing an application for a router which simply connects it to a VPN. If for some reason the connection fails, the application will attempt to acquire a new socket and reset the connection. My ...
0
votes
3answers
79 views

Is grabbing multiple IP addresses from 1 link via a switch a good idea?

I need to connect several machines to the internet for work purposes. However, each workstation only has 1 LAN port. To get around this, I tried to connect a switch to the LAN port to "grab" multiple ...
4
votes
1answer
102 views

What's the difference between a Cisco 7613 Router and a Cisco 7613 Chassis?

I see both names referred to in the manufacturer's literature. Is one part of the other? Are they both the same thing? My reason for asking is that I'm trying to standardize an organization's ...
0
votes
1answer
63 views

Finding out the location order of tap interfaces in KVM VM (Libvirt)

I have inserted 8 tap interfaces in a Cisco Libvirt xml file that will create a guestmachine running Ciscio iOs image: <interface type="ethernet"> <start mode="onboot" /> <target ...
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votes
1answer
52 views

Router needs to support SNMP?

I want to monitor a couple of servers using SNMP. I connect using an industrial router. But this router doesn't seem to support SNMP. Could this become a problem?
1
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0answers
50 views

what is PAT exactly?

In attempt to understand PAT, I've setup the following setup where I have a Linux Router that masquerades from in internal interface to the external. Thus both clients are able to talk to outside ...
1
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1answer
35 views

Mail server on 2 ISPs cannot receive outside mail

I have been trying to fix this problem for a week now. My network has 2 ISP: 1: fixed IP -> Billion router -> mail and web servers 2: dynamic IP -> Linksys -> normal web browsing They ...
0
votes
0answers
28 views

Tomcat not able to access outside the server

I have installed Tomcat 7 in windows 2008 server R2. I am able to Tomcat home page by the url http://localhost:8080/But not able to access outside the server using IP Address. The same setup i done ...
0
votes
1answer
153 views

Add Access Point to Sonicwall TZ100

I have a SonicWall TZ-100 configured with two private networks, 192.168.1.x LAN and 192.168.10.x WLAN. The WLAN is bridged to the WAN so traffic goes direct out through the WLAN and never access our ...
0
votes
1answer
179 views

Router drops connection

We are having trouble with our Draytek router, and I thought this would be the best place to ask. Our current set-up: Cisco EPC3925 modem to our connection point Draytek Vigor2850 router connected ...
0
votes
2answers
109 views

Random router load balance

It's my first GNS3 router configuration experience. There are 4 connected routers (they can ping each other). The routing protocol is router eirgp 10. This is result of show ip route on R4: D ...
1
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2answers
57 views

New DNS settings from router not pushed to all stations

After updating the static DNS settings on our Cisco WRVS4400N router, approx 1/3 of stations did not receive the new DNS settings. On the stations that did not receive the new settings, ipconfig /all ...
0
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2answers
589 views

OSPF routers (with BIRD on debian) recognize each other as neighbors but can't ping each other

I've created a "line" topology using virtual box - creating 4 machines and making a separate link between each using internal networks - R1 (eth0, 10.0.1.1) <-> (eth0, 10.0.2.1) R2 (eth2, 10.0.2.2) ...
1
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0answers
32 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 ...
2
votes
2answers
162 views

Unexplained 0.1% packets time out when pinging from router

I'm troubleshooting a customer who requires the ability to send 5000 pings from the router to their remote site over a satellite link with zero timeouts, yet they keep experiencing one to five packets ...
1
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1answer
105 views

xen domains could not connect to the internet via xen domU router

I'm trying to configure xen guest to act as a router for 2 more guests. Here is the configuration: xenbr0 IP: 192.168.1.100 netmask 255.255.255.0 gw 192.168.1.1 domain router router0 ...
3
votes
2answers
187 views

Wifi performance is slow only when there are multiple radios in one router

I have a wireless network setup like this: Laptop \ | Wifi Router A | Wifi Router B | Wifi Router C | \ | / \ | / \ | / ...
0
votes
0answers
34 views

Trying to communicate between virtual servers on the same host through ipv6

I am running KVM on a host with 2 virtual servers. Each virtual server has a own bridge interface on the host VPS1 has br1 VPS2 has br2 Each virtual server has a own ipv4 and a ipv6. The virtual ...
0
votes
1answer
65 views

Can ESXi host get IP from VM DHCP Server?

I have a server with 2 nics, 1 is public and 1 is private, the private nic is connected to a switch which is the LAN. Can the ESXi host draw an ip address and get service through the LAN just like the ...
-1
votes
0answers
121 views

Need iptables commands to permit all WAN originating traffic to enter the LAN side of a router [closed]

I have three routers. Router0's WAN interface connects to the ISP, and the WAN interface of Router1 and Router2 connect to Router0's LAN interfaces (i.e. hard wired). So this is what it looks like, ...
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votes
1answer
27 views

using 2 wireless routers to connect to 1 internet connection [closed]

I have 8 computers and two 4 port wireless routers. I want to be able to have all the computers to be connected via eithernet.1 router will be in one room with a cable modem with 4 computers ...
0
votes
3answers
61 views

Need to add a 3rd switch to dual network structure (2 routers & 2 switches)

We currently have 2 networks utilising the same 2 switches (so a computer attached to either switch can connect to either network), and we need to add in a 3rd switch but we’re not sure exactly how to ...
5
votes
1answer
98 views

Route traffic directly between nodes in a cluster

I apologize if this is a really dumb question. Objective Ensure that traffic that is meant to go between nodes in a cluster does not (inefficiently) go outside the cluster and then come back in, but ...
2
votes
3answers
394 views

VLANs using one managed switch or link router to unmanaged switches?

I'm the resident IT guy in an office with about 20 workers, amongst 3 separate companies who sublet an office. We are wired with 24 ethernet ports dotted around the offices that all lead to a patch ...
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votes
1answer
23 views

How to access router when connected to modem? [closed]

I'm trying to change the settings of my router, but I'm connected directly to my modem. Without changing my connection, is it possible to access this? I've tried going to 10.1.1.2 and so on, none have ...
0
votes
0answers
83 views

KVM directly connect to guests without passing router

I have a KVM host running 5 virtual servers. Each virtual server is using a separate bridge interface, like br0, br1, br3... Each virtual server has a own public IP. Now, I would like to be able to ...
-1
votes
1answer
66 views

Update router firmware without using web interface [closed]

I have a D-Link DSL-2740EL wireless router. How can i update router's firmware without using web interface ? Assume router's firmware is corrupted. so i can't log in to my router. then how can i ...