Cisco :: Can't Ping Out Onto Internet From A 172.16.0.0 / 16 Computer
Feb 28, 2012
When I first set up the Zone based firewall I used the Wizard with a setting of "low".The issue I am now having is related to adding a new subnet on a completely different IP range. My normal network is 10.20.0.0/16 sub-netted down into /24's for each vlan.Recently I added a new VLAN with a 172.16.0.0/16 subnet. I plan to use this vlan for testing purposes. I updated NAT on the router to allow the 172.16.0.0/16 range to be NATTED.From the router I can ping anything on the 172. 16.0. 0/16 range and from a test machine in the 172.16.0.0/16 I can ping all of the 10.20.0.0/16 addresses including the router.My problem is I can not ping out onto the Internet from a 172.16.0.0/16 computer.I have checked and so far I have not been able to find any policies on the firewall saying traffic must be sourced from the 10.20.0.0/16.
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Jul 6, 2012
Whenever my sister uses her laptop it makes the routers ping really unstable. It usually lies between 200-1000 when she uses the laptop. When she turns it off the ping remains at 21. Our internet is 8mbps/0.7mbps. I have tried other laptops and had no problems, but her laptop and her general use makes it impossible to play an online game without lagg. She doesn't download anything, just plays some flash/java games, chats and webcam etc. I just can't understand why the ping becomes so unstable when she uses her laptop.What can I do to make the ping more stable? Any software I can install to limit how much ping she uses or something? Something I can buy to split the line between us or anything like that? Software that checks what she is doing that makes the ping unstable? She just had a few programs and chrome up and still ping was unstable. None of the other laptops in the house behaves this way nor any of the desktops. It also makes web pages load 5 times slower?
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Aug 18, 2011
My computer will connect to the home network but won't connect to the internet or pass the ping test.
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Oct 8, 2008
I just got a WAG160N-au, I run the installation disk, follow the procedures. I got the internet connection.
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Jan 18, 2013
From My Router that connects to Cable modem i am unable to ping website 4.2.2.2I am able to ping all other websites fines.Same website i can ping from my pc and all other switches fine.Router has only 1 ACL thats for NAT.
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Nov 24, 2011
i need to know when a computer shutdown. Is a windows xp. Is in another domain. I cant use VPN.somebody knows a software that alert me (example: by email)?
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Sep 22, 2012
Hard Drive (Gembird not detected on My PC
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Apr 21, 2011
How can i enable this machine to be accessible throught PingTracert
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Nov 7, 2012
I connected to AP 1552E and my computer via PoE Gigabit Ethernet Port. Port is up and two of them are the same subnets.Even if my computer and ap arp table seen each other but i couldnot ping the each of them. [code]
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Feb 25, 2012
For some reason I cannot ping or FTP on a specific computer on my home network. All other computers work fine and the specific computer works fine on other networks. But the combination of this computer and my home network it doesn't like.
I have disabled both windows firewall and my virus software but nothing seems to work. It seems to be a timeout issue as FTP and ping sometimes does work but FTP is increadibly slow when it works and the ping time is very high 670ms and above. I am running windows 7 and my router is a netgear n150
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Mar 24, 2011
I am with Virgin media (UK) and have the 20mbps fiber optic connection. My area has recently been having problems with the broadband and Virgin has recently fixed these problems. However I used to get around 19mbps now that the problem is fixed my computer which is wired to the router gets about 0.4mbps downstream... However the 5 wireless computers all get 16mbps which is pretty good for them. Windows tells me that its a firewall issue and I currently can't use two programs, spotify and steam. They both have firewall issues, even if I turn off my firewall which is the windows one. I also have avast, and when I turn that off, still no good. I used OpenDNS, stopped using that flushed my DNS, that didnt work. I tried to optimize my computer settings, by changing various values in Regedit.All of this has done nothing. I should add that I have recently re-installed Windows 7 so on this fresh install it has never had decent internet speed. Which I thought was weird.. I have basically had these problems since the fresh install. All of my drivers are up to date.
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Jan 30, 2012
My computer is a 32 bit, Win7 SP1 with Pentium Dual Core 2.6 Ghz and 2Gb of Ram on a wired network. My wife has a similar system using a wireless network. She can ping my IP Address, but I cannot ping hers. We both have full access to the Internet. We are using the same workgroup, and both computers have file and printer sharing enabled and IPv6 addresses and DNS server addresses selected automatically.The problem appears to be with my computer?
Here are my system stats:
Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Home Premium, Service Pack 1, 32 bit
Processor: Pentium(R) Dual-Core CPU E5300 @ 2.60GHz, x64 Family 6 Model 23 Stepping 10
Processor Count: 2
RAM: 2013 Mb
Graphics Card: Intel(R) G41 Express Chipset, 782 Mb
Hard Drives: C: Total - 76308 MB, Free - 49226 MB; D: Total - 286167 MB, Free - 52893 MB; M: Total - 38154 MB, Free - 7 MB;
Motherboard: ASUSTeK Computer INC., P5G41-M LE
Antivirus: Microsoft Security Essentials, Updated and Enabled
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Jun 1, 2013
Why do I not have internet access from C1700? I have 2 routers and two cat switches.
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Apr 9, 2012
Cisco 887 I can ping to 4.2.2.2 but can't connect to Internet
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Aug 27, 2012
I have a Cisco 1812 with IOS 12.4(15)T17.I would like to perform pppoe dialing using this device to my ISP. My ISP is using VLAN id 500 for Internet. I configure like below but seem unsuccessful. From the console, I can't even ping to internet.ip nat inside source route-map nonat interface Dialer1 overload.
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Oct 11, 2011
cant get online,found that the internet IP ping failed
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Jan 15, 2013
I have a cisco 871w router that I'm trying to incorporate into an existing network. I have FastEthernet4 (WAN port) plugged into an ISP device, which I don't have access to. I have the address set to use dhcp, which is successfully recognized and I see that the interface gets a valid ip address that I can ping with other computers on the same network.
Problems: I am logged into the router via the serial port and I cannot ping websites on the internet. I am able to ping sites that are hosted inside the WAN, but when I try "google.com" for instance, I see it sending out packets, but none are received. It resolves the hostname from the local DNS server, but there are no packets received.
I type into the console to set up the router. I'm missing a lot of stuff. This is what I've been able to piece together using google and the software manuals:
enable
config t
hostname [hostname]
interface FastEthernet 4
[Code].....
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Jun 17, 2012
I am trying to configure Nat on a clean ASA 5505, but can't get it to work. I ran the commands below. On the ASA I can ping the internet and inside vlan ip. On my laptop I can ping the ASA inside vlan ip, but I can't ping the outside vlan ip. From another network I can ping the ASA outside public ip. Is there an access-list that denies inside from accessing outside?
I am running version 8.4(3) and I erased the existing configuration.
ASA(config)# interface vlan 1
ASA(config-if)# ip address 10.0.0.1 255.255.255.0
ASA(config-if)# nameif inside
[Code].....
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Aug 7, 2012
We let cisco professional to configure 1941w router with EHWIC-3G card. So the Gig 0/0 and wlan clients could communicate the internet over 3G.So we bought another 1941w and copied the config over to new one. Can ping from console but not from client pc. The only differents between old and new is "ip source-nat" line. New router just don't save it to running-conf. No errors also.
Router#show run
Building configuration...
Current configuration : 3238 bytes
!
! No configuration change since last restart
version 15.2
[Code].....
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Jul 23, 2012
I am new to Cisco and am studying for my CCENT certification. At the moment, I am attempting to correctly configure a Cisco 871W lab router. Since I have undertaken this task, I have run into nothing but problems. First off it was finding that the previous owner had left a password on it, having to purchase a new USB to DB9 adapter to pass the "break" sequence to the router, and then resetting the router in ROM Monitor mode.
Now, I cannot seem to configure the router correctly, and am quite stumped.
My ISP is Charter (cable internet), and the home network that I am using consists of a Motorola SBV5122 Digital Voice Modem, Motorola SB6120 Cable modem, and, ideally, should also include my Cisco 871W router.
When I connect my router to the SB6120 Cable modem, the router receives an IP address via DHCP and the WAN indicator light turns on.
I have a VLAN configured on the 4 switchports of the router, and it is setep to act as a DHCP server. However, when I connect my PC to rhe router via Cat5e Crossover cable, I cannot access the internet. The router gives the PC an IP address, yet all attempts to ping the PC from the router fail. Somehow, I can connect to the router via SSH though.
Furthermore, I can ping the 127.0.0.1 loopback address from my PC, but cannot do so from the router.
how to correctly configure this router to function as intended in my network situation, however, this is proving to be seemingly unsurmountable!
I have attached the config of my router along with both outputs and commands relating to my predicament.
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Jun 27, 2012
I have cisco 3825 router with two interface one with public ip 182.50.190.140 and the other with private ip 192.168.1.1 and the DNS is 66.28.0.45, I configured NAT overload on it to access internet I can ping public ip nad default gateway but cannot ping dns and neither internet can be accesed. following are the configurations. [code]
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Mar 31, 2012
I have a new 3560G to set up a small network for a remote site. I configured the vlan and an SVI as the gateway. The switch is also the DHCP server for the LAN. I configured Gi0/2 as L3 port, connecting to the nearest neighbor. My network runs EIGRP so i advertised the routes into the EIGRP process. The switch forms EIGRP neighbors and learns all routes in the enterprise network. The problems I'm having now are: 1. The switch learns all routes in my enterprise LAN and can ping devices in the enterprise LAN, but I can’t ping any interface on the switch from the enterprise LAN. 2.
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Apr 10, 2012
I can be connected to the internet (i.e. surfing, emailing) and suddenly loose my connection. I can then ping sites but not be able to access via IE or Firefox. I am running Windows 7 Home Premium and Norton. I have had the problem on multiple networks. I have DSL at home and connect wireless to the network. When this occurs my wired machines still work fine.
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Apr 17, 2011
I was able to go onto the internet with no problem. I've been searching forums trying to solve my problem but to no avail. I have Windows XP installed, I can connect to the LAN network but I cannot go online. I can ping the gateway but not the DNS as well as other address name or ip address. This is the output of ipconfig /all:
Description : Realtek RTL8139/810x Family Fast Ethernet NIC
Dhcp Enabled : Yes
Autoconfiguration enabled: Yes
IP address: 192.168.1.145
Subnet mask: 255.255.255.0
Default Gateway : 192.168.1.1
DHCP Server : 192.168.1.1
DNS Servers : 202.160.8.2
202.160.6.20P.s: All the other computers in the LAN can connect to the internet.
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Oct 13, 2011
Couldn't get online and I found this message "internet IP ping failed" when I did a diagnostics on the wireless card.
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Mar 16, 2013
I have this problem of loosing internet connection every 1-2 min. I ping Google and I have a lots of Requested timed out about 7-8 of those then I have a reply for 30 sec than it starts again "...timed out"t first I thought it was a problem from my ISP than I called them they checked and it seems that everything it's OK and their behalf. I keep calling them for this problem and they came changed the cable and the router but the problem keeps going.I've had the same ISP for over 2 years now and I didn't have any problem but has started about 1 month ago. At first I was using a TP-LINK 54M Wireless ADSL2+ Modem Router connected throught Poppe with a username. I thought it was that the modem had the problem but the ISP brought a new modem BILLION and the problem keeps going. I've tried in two different PC's same problem.
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Aug 3, 2011
I'm inclined to think this is a bad router but just wanted to run it by everyone. All of a sudden I can't get into the router interface or ping it, but the internet still works. If I power cycle the router, then I can get back into it.
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Apr 23, 2012
I'm with Virgin Media and they've been pretty hopeless in resolving my problem. That being I quite often get very high ping from about 200ms-1000ms+. I haven't managed to figure out a pattern to when it happens, and it doesn't seem to matter if there's one person on the internet or 5. Sometimes it's fine, while I'm writing this it's about 25ms, but about 10mins ago it was ranging from 500ms to 1000ms. It doesn't really seem to tie in with download speed either, and I don't have the technological know how to try and fix this on my own.
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Oct 23, 2011
I've had 5 techs come to my house and no one seems too know the issue. At a random time in the day my internet will lag for a few seconds for about 5 hours, my ping in games and programs skyrockets, and I can't do anything.
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Sep 10, 2011
When playing multiplayer games online, I will, after some time (15-20 minutes) get horrible lag/disconnects and ping issues, It usually starts sorts itself out when i restart the game in question or just rejoin.This is getting really frustrating, I've contacted my ISP but they just claim that the problem is on my end.
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Jan 23, 2011
I have a home network of 3 cmputers. DHCP from router. 1 computer is not getting address. But if I assign it one, with same gateway and dns(not a duplicate ip of others), it can ping internally, and outside. I can do tracert to 8.8.8.8 and ping it (google DNS). But I can't get to internet. So - i can get out, but nothing coming in. I have checked firewall.
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Aug 11, 2011
I can access the internet just fine, but when I try to connect using a VPN It times out.When I ping the desktop in question, I get a timeout, and when I ping anything from the desktop I get "general failure".I've tried allowing echo responses through the firewall, and disabling the firewall, to no avail.
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Apr 28, 2011
[code] after installing the wirless driver, I can see my network but it can't obtain an IP. So I issue it a static IP, and it says I am connected and have internet access. But when i open up IE, doesn't work. Tried Resetting IE, and that didn't work. [code]
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