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• Cisco 1760 T1 Setup

  - by Joseph

  My 1760 has a WIC1-T1 card in Slot 0 and the slot 0 "OK" light is lit. When the router boots it shows that it sees the T1 card. I would like to configure my T1. I received the following details from my ISP: * Removed IP's IP Version: IPv4 Router Interface: edge1.mia1 -- t1-2/1/0:2:13 -- Switch Port: Vlan: WAN Network: 4.59.?.?/30 Level3 Side: 4.59.?.? Customer Side: 4.59.?.? Cust. LAN IPs: 4.59.?.?/27 The problem is that it is not listed under interfaces. I am a noob with IOS, please let me know if you need more details. Thanks.

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• SMTP redirecting to other port than 25

  - by Roalt

  How can you redirect your smtp traffic to another port than 25? My ISP blocks incoming traffic to port 25. I've been using ZoneEdit.com for this purpose for years (incoming mail traffic goes to another port and I redirect it via my firewall internally to port 25), but with the new system I cannot do it anymore. I'm not sure if I can do this by configuring MX and A records in the right way or if I need a SMTP redirecting service (such as rollernet.us)? I'm not an expert in Zone records but generally I know my way around for website traffic.

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• WAN and LAN setup for IPv6

  - by neu242

  We just got a IPv6 /48 range (a gateway and an IP address) for our company, but I'm unsure about how to set it up. We use FreeBSD 8.4 (pfSense 2.1) as a router/firewall. Currently we have IPv4 setup with a WAN towards the internet, and a NAT-ed LAN behind it for office PCs. We want to keep the LAN network for security, and we want IPv6 addresses from the /48 for all office PCs (without NAT). The WAN is configured with the IPv6 gateway 1111:2222:3333::1/48 and interface address 1111:2222:3333::2/48. But when it's configured this way, I guess it's impossible to fit the LAN on a /64 within the /48? I believe I should configure the WAN subnet on 1111:2222:3333:1::/64 and the LAN on a subnet like 1111:2222:3333:2::/64. Is this something I can configure myself, or do I have to ask the ISP to configure that routing for me?

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• Seeking recommendations on resolving sporadic network connectivity latency for Notes client

  - by Russell Maher

  I have Domino servers in geographically disperse data centers in the U.S. Sometimes when I open an NSF on one of those servers the connection times out then when I open the NSF again it connects immediately. This has been going on for years and during that time I have upgraded and changed my own internet connection and moved servers to different data centers. Of course I have direct connection documents using fixed IP addresses. When I do a Notes client Trace nothing is out of the ordinary. My business partner experiences the same thing from an entirely different city and different ISP but to the same servers. Never have any trouble connecting to the HTTP server, just over port 1352. Does anyone have any recommendations on a process to determine what is causing this problem?

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• Sending mail via Exchange, why am I being flagged as spam?

  - by Dan

  Exchange 2007 uses direct DNS for all outgoing mail. Mail that is sent from our public IP (1.2.3.4 - this is the IP of my mailserver) is delivered to the spam folders for providers such as Comcast and yahoo. Currently, our SPF looks like this: v=spf1 ip4:1.2.3.4 mx a:mail.domain.com ?all MX: mail.domain.com.(10) The reverse DNS entry on our ISP is mail.domain.com for our IP The banner HELO response from our server is <220 mail.domain.com Our IP address is NOT blacklisted anywhere, and the Cisco Senderbase gives us a score of Good What is the reason our mail doesn't look legit?

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• Network Table assistance

  - by mitchnufc

  I am designing a small network and have came up with the following table I am just wondering if this seems right, would appreciate some feedback, thanks. Network/Router First IP Last IP Subnet Host Broadcast Router 1 162.10.0.1 162.10.0.7 255.255.255.248 162.10.0.0 162.10.0.8 Network 1 162.10.1.1 162.10.2.253 255.255.254.0 162.10.1.0 162.10.2.254 Network 2 162.10.0.9 162.10.0.14 255.255.255.248 162.10.0.8 162.10.0.15 Router 2 162.10.0.17 162.10.0.18 255.255.255.252 162.10.0.16 162.10.0.19 Network 3 162.10.0.21 162.10.0.146 255.255.255.128 162.10.0.20 162.10.0.147 Router one is the IP assigned by the ISP

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• RDC not working from outside

  - by Cotten

  I've set up Remote Connection according to : http://windows.microsoft.com/is-IS/windows7/allow-remote-desktop-connections-from-outside-your-home-network That is, Allow remote connections to the computer you want to access. Make sure Remote Desktop is able to communicate through your firewall. Find the IP address of the computer on your home network that you want to connect to. Open your router's configuration screen and forward TCP port 3389 to the destination computer's IP address. Find your router's public IP address so that Remote Desktop can find it on the Internet. When I'm inside the LAN, RDC works flawlessly. When I try to connect to the ip given by my ISP it cannot connect. I've setup port forwarding for 3389 on my netgear router. Thanks!

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• How to setup VPN on home network

  - by Tone

  I am a software developer. I travel and sometimes have a need to access my files at home and tweak other family members computers. I would like to connect to my home network via VPN and then RDP into whatever machine i need to. Currently i have a Windows Server 08 machine, which is my file server, database server, web server (for development work), source control repository, etc. (and also somewhat of a workstation when i need it to be). I want to use this same machine to run my VPN through. I have a linksys WRTG54 router. My ISP is AT&T DSL, with a dynamic IP address - so i'm assuming I'll either need to request a static IP or sign up with one of those static ip services.. where it keeps your dynamic ip synced up with a static one. While I do understand software engineering I am no expert in networking. What do i need to do to setup my VPN?

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• Home router for higher network loads

  - by Zizzencs

  I'm trying to find a replacement for my ASUS WL500GP router. Some constraints: my ISP now provides 120 Mbit bandwidth - the router must be able to handle it I have 3 computers and a laptop at home - the router must have at least 4 LAN ports and the WAN port I need to be able to do the following in parallel: use bittorrent with ~1000 connections transfer files from one home computer to another at high speed access one home computer from my workplace I don't really need wireless I don't really want two boxes to serve all these purposes. So I was searching for a router with 1 Gbit ports, jumbo frame support and good reviews, but haven't really found a promising candidate so far. Any suggestions?

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• CNAME lookup failed temporarily. (#4.4.3)

  - by klickverbot

  A friend of mine just told me that he can't send mails to accounts on one of my servers via the SMTP server provided by his ISP. The error message in the bounce he gets reads: Hi. This is the qmail-send program at aon.at. I'm afraid I wasn't able to deliver your message to the following addresses. This is a permanent error; I've given up. Sorry it didn't work out. <[email protected]>: CNAME lookup failed temporarily. (#4.4.3) I'm not going to try again; this message has been in the queue too long. Any ideas what could be the reason for this? I have double-checked the DNS records for my domain, but they seem perfectly fine, and from any other mail servers I tested, delivery works flawlessly…

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• Windows XP doesn't like small subnets?

  - by erniedwork

  This totally sounds like a bug to me, because my subnet mask and IP address should be valid by all accounts. My ISP has assigned me a fixed IP address of 65.110.7.20, with a subnet mask of 255.255.255.252. Which sounds about right, because we're trying to set up a router with a /31 network - just 4 ip addresses. But when I try to set this IP and netmask up in Windows XP, I get the following error: "The combination of IP address and subnet mask are invalid. All of the bits in the host address portion of the IP address are set to 0." But they're not all set to 0. That would be a subnet mask of 255.255.255.255. Even then, that too is a valid subnet mask, consisting of a network of 1 IP address. Is there a way around this? A registry hack maybe?

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• Amazon EC2 IPSEC

  - by John Qualis

  I have configured a ubuntu 12.04 64-bit server machine on Amazon AWS to act as a strongswan IPSEC server. I want to connect to it from my MAC OSX Lion's inbuilt IPSEC client. The OSX machine is in my home network. I log into the AWS machine using a ssh to ubuntu@public-ip and I provide the private RSA key in form of .pem file which I downloaded when the machine instance was created. The ssh connection works file but the IPSEC connection fails. What credentials/configurations should I provide for an IPSEC connection from my OSX client to AWS ubuntu server? My OSX machine is behind an ISP provided modem/router. Appreciate any help and thanks in advance

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• Setting Up DHCP Server as Failover

  - by Jason Buhagiar

  I have 2 Domain Controllers running at my company; DC1 has the following roles; ADDS DNS DHCP Scope - 192.168.2.100 - 192.168.2.240 DC2 has the following roles; ADDS - Replicated DNS - Secondary DNS I also have 2 PFSense Gateways both have a different ISP Connection, DHCP Relay is not enabled on any of the machines. Can anyone suggest a way for me to install DHCP Server as FAilover on DC2 please, should I use split scope etc... Help is much appreciated :) Thanks.

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• Apache routing vhosts to /var/www

  - by FHannes

  One user at my site has reported that he reaches the content at /var/www when browsing to any of the vhosts at my server. As far as I’m aware, my Apache server does not contain a document root that references this folder. On top of that, this user seems to be the only one experiencing the issue. According to his ISP, the issue isn’t caused by them, yet, on his mobile connection, he can access the site. When browsing to my server’s IP, he also receives the correct content from the default vhost. What could be the possible causes of this issue and how can I get it to stop? I’ve explored pretty much every option I could think of.

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• Skype audio always goes 'robotic' for the same user

  - by John

  Someone I talk to on Skype a lot has a very persistent issue, where after a few minutes their voice goes very 'robotic'... still understandable but annoying. We can restart the call and it's fine, but fairly consistently after a few minutes it returns. He experiences this with other people too, not just me - I don't have anyone report problems with my audio quality. This is not an ISP issue - he gets the same problem on multiple PCs in different countries, in fact he's even recently moved to a different continent and got a new internet connection... same problem. It seems somehow to be a problem with his Skype account, which is really quite odd. It's been going on for months of not longer.

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• Redirect all ports to my server in a simple way

  - by Dorian

  I have a server with SSH access (on port 22 and 443). My ISP block everything except ports 80 and 443. I there a simple way to make everything go to my server (via SSH) then return the response via the same SSH connection, but in a way I can use all the ports in my client. Like : Me ? SSH connection ? My server ? request ? Server ? My server ? Me It's like a VPN but I don't have any port available for a VPN (443 is already taken by SSH).

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• local wordpress installation not accessible from the outside world

  - by hello

  I have a working installation of wordpress located in /var/www/html/wordpress It is accessible in my local network at [local-machine-ip]/wordpress/ There is also a test page located in /var/www/html/test.html It is also accessible in my local network at [local-machine-ip] I would like the wordpress website to be accessible from the outside world. I know that my ISP blocks incoming requests on port 80, so I set my router to redirect requests from port 8080 to 80. This feature appears to be working correctly since I can access the test.html page using my public ip address as follows: [public-ip]:8080 However, I cannot access [public-ip]:8080/wordpress Here is my Apache config : <VirtualHost *:80> ServerAdmin webmaster@localhost DocumentRoot /var/www/html ServerName [my.domain.com] <Directory /var/www/html/> Options FollowSymLinks Indexes MultiViews AllowOverride All Order allow,deny allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> Thanks!

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• Mirrored servers in data centers nationwide -- how?

  - by Sysadmin Evstar

  Mirrored servers in data centers nationwide -- how? I flunked my IT interview by getting this question wrong. I thought that in the various metropolitan areas, an "http://google.com" request goes to the ISP's DNS server, which somehow returns an IP address for one of several geographically-nearby http servers, and then something internally rolls over to the next available local Google server. But then, I could not explain where the table of available local Google servers is actually cached, or the details of the IP address rollover. Or how they could manually take some server out of the rotation, from anywhere. So, what should I be reading now so I can ace this question next time? Also, what daemons run on these machines 24/7 to keep all those mirrored database disks synchronized?

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• Backup/Multihomed network connection

  - by J_P

  We have a couple locations that require 24/7 access to Internet and our current provider (AT&T) while mostly good is not always up. My concern would be if I go with another provider (for example Comcast) I'm going to be subject to the same down time if it's in the "last mile". I for the most part don't know where the failure points are on the ISP side but I would imagine the large majority are within the last mile. I'd looked at Mifi or similar solution but have concerns about bandwidth caps and overall speed. Any suggestions would be appreciated.

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• How to schedule download of windows 7 updates?

  - by atoMerz

  To put it short: I'd like to schedule my windows updates to start/stop at certain times of day. How can I do this? More explanation: This is because my internet traffic is limited by ISP and it's free only during a specific period throughout the day (2:00am-7:00am). I've set windows update setting to check for updates but notify me before downloading in order to prevent it from automatically using up my traffic. But then I have to manually tell it when to start downloading. I obviously don't want to stay up that late just to push a button. So again, how can I schedule windows updates to start/stop at specified times?

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• Is it possible to host a website with Apache HTTP through a ZyXEL EQ-660R modem and a Netgear WGT624v3 wireless router?

  - by Vortico

  Essentially, I have a spare desktop computer I'd like to turn into a web server, but my modem and wireless router are very difficult to work with. I installed Apache HTTP and successfully hosted a test page which can be accessed anywhere on the LAN. However, I'm having trouble setting up the server to be accessed from my external IP address. I was supplied with a ZyXEL EQ-660R DSL modem by my ISP (CenturyLink) and bought a Netgear WGT624v3 wireless router in which to connect my laptop and spare desktop. ZyXEL's website is no help, and I don't think much of the problem is with the Netgear router. I've played with many settings and have tried to forward port 80 from the modem, but I've had no luck. Could someone direct me toward a solution or recommendations for more promising hardware? Or should I admit defeat and explore other hobbies? :)

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• Isolated Network Set-Up

  - by Isaac Kleinman

  I am looking to set up a small network for a client which would be isolated from his primary network. (I'm hoping to set-up the additional network as VMs on the primary network.) I've instructed the client to request a bunch of static ip addresses from his ISP, but I'm not sure how to proceed with setting this up. What hardware will I need and how do I go about the configuration? Heavy security is not my concern. All that's really required is that web requests from the two networks be presented to the outside world with different ip addresses.

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• internet without dns tennis play [closed]

  - by Curious

  Why do we make DNS requests separately when an ISP could also be handling the DNS request along with HTTP data simultaneously. So rather than: Ask opendns what yahoos address is. Opendns returns: 66.55.44.11 Hey, Verizon. Send/Request data from 66.55.44.11. Why wouldn't the protocol just request data from "yahoo.com" and verizon interprets the yahoo.com as a split DNS request. This would lower latency for sure as it cuts out the time required for the dns server to call back the IP to then be sent AGAIN when it could just be handling the entire request theoretically. Couldn't this be managed via a host file change on the client side and make compatible servers?? So much like a proxy.

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• Where is this error message coming from?

  - by jordanpg

  Recently switched to a new ISP after a move, running Chrome under OSX 10.7. I see the following error when visiting various sites -- no particular pattern -- from time to time. This is the entire message. It is the only thing that appears in my web browser. The problem fixes itself in a few minutes. Probably a lookup error of some sort, but I don't recognize it. What piece of software is serving this message? What is happening? What is this Reference # referencing? Invalid URL The requested URL "/articles/6517181", is invalid. Reference #9.6f200f6c.235618518a.b7e910cf

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• can I connect two modems and comunicate on two side

  - by GongT

  I just wondering how modems work. I know the process of "modulation" and "demodulation". So I wanto know is "demodulation" are simple revese of "modulation" in real world. The PC can got an IP address when connect as type 1 What will happen when I connect them like type 2? type 1 : [PC] ================= [router] type 2 : [PC] === [m] ------- [m] === [router] [m] : modem(exactly same) === : Ethernet cable --- : DSL cable (phone line, maybe optical fiber, or something else?) ISP has a large number of model, Is them same thing as the one in my home(but with diffrent size/speed/price...etc)? Or it's completely different thing?

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