Cisco Switching/Routing :: 871W - SSH Connection Not Possible On WAN Link
Nov 7, 2012
I've a problem with my 871W. I can connect to the router by inside interfaces (LAN & WLAN) but not on WAN (Fa4). My client on the WAN is on the same subnet and I can ping 871.
I've acquired an 871W, because I'd like to use wireless, to replace my 851. I Ft Pd the 851's configuration to my FTP server and then Ft Pd this to the 871W. Save for the fact that this has a radio interface (currently shutdown), everything works save for FTP from the outside. I can not even telnet to port 21 of any of the internal FT servers. I can telnet to any other port (ssg, smtp, HTTP, https, etc.) but FTP will not pass. What's the difference?
I have an 871w set up to add wireless connectivity to an existing network. When adding a client to the physical interfaces to test VLAN internet connectivity, however, a DHCP address is assigned but internet traffic on the terminal never reaches the network nor does the network recognize the IP the terminal shows as being 'connected'. Also, pings sourced from the VLAN do reach destinations. I've attached my config file, I think it's a routing issue of some kind.
10.26.99.0 is the existing network. 10.26.99.1 is an existing 871w router set as the DHCP server for that network and 10.26.99.10 is a Windows Server 2003 DNS box. VLAN 2 and DHCP pool alpha were control sets for trialing DNS settings.
I've been trying to get my wireless configured for the past few days with no luck. I can ping every device on my local network and I can ping outside my network and surf the web. My wireless devices can see my wireless network but cannot connect to it.
We have a Cisco 871W working as PIX, controlling external VPN connections to our private network.The configuration is very similar to the one described here - "Cisco Router as a Remote VPN Server using SDM Configuration Example" url...
About once a week, it stops working, without aparent external intervention.The ping to the external IP stops answering, and the internal IP stops answering pings also.The solution is power-off and power-on, and it starts working again ...
What is the correct way to debug this situation ?I can connect a HyperTerminal using direct cable to the 871, but dont know the relevant commands to debug this situation.
Is there any LOG I can have a look into ? Yes, I am quite new to Cisco world .By the way : "show version" says Cisco IOS Software, C870 Software (C870-ADVSECURITYK9-M), Version 12.4(15)T7, RELEASE SOFTWARE (fc3)
I've just started styding for CCNA. Bought a router 871W recently and spent two days straight trying to configure internet connection with no luck! I use console port to do the configs and SDM/CCP. How to do simple internet connection configs. I googled everything but it's still confusing. I can't assing any IP to FA ports 0 - 3. I used VLAN instead. But all tutorials use FA0 and when I try to assign an IP to FA0 it gives me some L2 can't be assigned or something... :/ And I'm also confused what IP address should I use for WAN. I plugged the cable from Modem to PC's LAN port and wrote down some IP addresses which I think I'll have to use to configure the router for internet connection. And here they are:
I have a problem with myself a few other clients randomly disconnecting from my 871W. It appears that I am still associated but Windows 7 shows "Limited Access". I appear to be assosciated to the AP and I still have my ip address but I can't ping the 192.168.1.1 gateway (871W). I have also set my power plan to allow for Maximum Performance which I thought disabled PSP but the log is still showing errors.As a final note, after I reconnected by ip address (192.168.1.107) doesn't show up in "sh ip dhcp bindings" but I'm working.To correct the situation, I have to disconnect and the reconnect to the AP and then I am good for another day or close to it. Below are the log errors, config and a sh ver. [code]
I have an issue with a Cisco 4900M switch with a WS-X4908-10G-RJ45 half card. The link connection between a 10Gbase-T server nic and the switch does not establish, i believe it is an auto negotiation problem. The link fluctuates constantly between connected and disconnected when set to auto negotiate. When the 10G half card port groups are configured for 1G connections it does the same. If i hard code the server nic to 1G the link remains up when the port group is at 1G. If i hard code the server nic to 10G the link stay down, i don't think the port speed and duplex can be hard coded on the switch end. I have tried updating the drivers on the server as well as diagnostic tests on the nic, which passed. The 4900M IOS code is version 15.0.2-SG2. If i plug a laptop into the 1G configured port the switch and the laptop negotiate at 1G. Also, i believe, if the 10G server nic is plugged into another 1G only switch the link auto negotiates to 1G as normal. The server nic is an INTEL Server Adapter AT 10G, which became end of life in 2009. I believe the half card came out in 2010.
I am a bit green with IOS and have exhausted everything I can think of with this. The router passes the WAN test in CCP?Undoubtedly there are probably a few things in the config that are either redundant or totally unnecessary, but I have been trying a few things to solve this with very little success.I have no security stuff in here because I have triewd to keep the config as simple as possible to start with. I will add that after I get the routing working.
Here is my most recent config:
Cisco871W#show config Using 2631 out of 131072 bytes ! version 12.4 no service pad service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption
We have our Nexus as our default gateway (101.1) and the default VLAN1 is setup with two subnets 101.X and 102.X. The DHCP server is using a superscope setup to accomodate the overflow of devices requesting IPs on 101, so when 101 is consumed persons are able to obtain a 102.X IP address. The setup is basic on superscope. The issue is some times the routing to the firewall with a 102.X is not always 100%. Somedays all goes well and the 102 subnet is routed out to the firewall and its a good day. However, such as today a 102.X address is not routing as it did 24 hours ago. I am perplexed as to why this is behaving unpredicatable. Here is running-config for VLAN1 to show the 102 as secondary address to VLAN1.
I bought an 871w second hand with 124-24T IOS on it. I would like to enable QoS. When I use Cisco Configuration Professional to manage the router I click on QoS and it says it is not available. I know that the router itself is QoS capable.
This is my first time dealing with a router such as this and I wonder what I need to do to enable QoS.
I've got a bit of a weird situation here as soon as I switch on my desktop pc my wireless connection is lost. This is only the desktop pc, I aso have a HTPC on wire, this one doesn't have any problems. If my wireless fails, my wired clients can still go on the internet. (see for detail the drawing at the bottom of this post).
The other weird thing is as soon as I set my wireless to WPA-TKIP there are no problems, but my wireless is set to WPA-AES due to the wireless N standard.
I also noticed as soon as my wireless drops out the router starts changing channels.
Part of my network is DHCP (in the range of 192.168.0.100 - 192.168.0.199) the other part has fixed adresses (192.168.0.251, 192.168.0.253, 192.168.0.254)
What i've tried thusfar - other firmware - replaced cables - rebooting/restarting router - setting up from factory defaults
Region : France Model : TL-MR3220 Hardware Version : V2 Firmware Version : ISP : orange
i have installed TL-MR3220 after my livebox (orange french box), my MR3220 is configurer on the DMZ zone in the livebox, internet is ok on the pc but when adsl signal is down on the livebox, the MR3220 don't switch to 3G connexion. The wan led is alway on in the router. But if i unplug the wn cable, the router switch on the 3G connexion. If i plug the wan cable the router kill 3G and use wan connexion.
How can i config my WAN config on the router for automatic switch by the router. Actually, the WAN config is fixed address (DMZ address in the livebox) Whis PPPOE id, the router can't connect. The livebox modem can't work on briddge.
I have a Cisco 871 router at one of my client sites.(they purchased the router from me and I sent them the router with a basic configuration on it). When they connect it after hours clients get the proper IP addresses and dhcp configuration however are unable to access the internet.We are connecting their ISP supplied router to Gigabitethernet0. They have a static address. I have been through the confirmation many times and am thinking I am missing something so simple.
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
As soon as I add the interfaces of the router to security zones it significantly drops speed on WAN interface, below 1 Mbs. I noted this because I wasn't able to watch youtube. Moreover the bandwidth test from speedtest.net hangs and doesn't come to a result. Here below is the diagnostic example while doing that test. The question is what is going on? I have two iPhones and three computers in my network, that's it. My ISP bandwidth is 10 Mbs, so is this the router hardware limitations, or kind of malfunction or some misconfiguration down here? What could be done here ?
About twice a day (that I notice) my wireless loses its internet connection. All the wired machines continue to be connected to the internet but any wireless ones lose internet, though they maintain a connection with the router.
I have a small wireless network, which consists of three AP1121G with c1100-k9w7-mx.123-8.JEB1 ios and one 871w with c870-advipservicesk9-mz.124-24.T1. I've configured two different ssid's with individual authorisation types - ssid_1 with eap, ssid_2 with wpa. All three ap's works as it should be, but 871w authorises only eap connections, and all other types are rejected
Is it possible to make Any Connect VPN from IPad/iPhone to 871w? IPSec VPN is working perfectly but cant get my Cisco AnyConnect iOS client to connect. I have config webvpn and it beeing user/pw prompted but keep getting the following error:
"the required license for this type of VPN client is not avaiable on the Secure gateway. Please contact Your network administrator".
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.
I'm trying to configure WiFi on my Cisco 871w router withouth any knowledge in this area. And it's a tough one, couldn't do it just with google, hope this is the place where I can get it done right step by step if possible. Everything else works fine. I'm going to post my messy show run below. Everything I did on dot11Radio will need to be cleared I suppose.
Point38#show run Building configuration... Current configuration : 4072 bytes ! ! Last configuration change at 16:23:18 UTC Thu Sep 8 2011 version 15.1 no service pad
Below is my VPN config in my 871 and radius user config. I am unable to connect to the vpn using Cisco vpn client. I am getting one of two errors depending on what config changes I make.I believe I have the radius configured correctly because it is authentication but not 100% sure.
Recently, I purchased a Cisco 871W Router with which to practice/study for my CCENT with. Since I have made the purchase, it has given me nothing but headaches.
I cannot access the router to configure it, as the previous owner has a password set on it to access enable mode, which he/she has forgotten.
Here is the message that I receive when I attempt to log in into the router, to access enable mode. [URL]
Apparently there is supposed to be a one-time username and password of "Cisco", but this is not the case.
I have tried to do a password recovery, following this post discussion thread: [URL]
Unfortunately, this has not worked, and I am sure that I am doing something incorrectly. I am connected to the router via console cable and have tried power cycling the router and entering the break sequence, power cycling again, and then holding the space bar down for 15 seconds. The preceding has produced no results to speak of. Following, I set my terminal emulator, Tera Term, to the baud rate of 1200, power cycled the router, and held down the space bar for 20 seconds. I then immediately set the baud rate back to 9600. Nothing occurred, once again.
Furthermore, I have followed the password recovery instructions set forth by Cisco. [URL]
Nothing has come of these methods, either, and I do not see how they would work, or even apply to my situation, as Cisco seems to imply they should, as I cannot get into enable mode, let alone privileged mode or conf t mode, as the guidelines require.
Here is some info for troubleshooting:
OS: Win 7 HP 64 bit Terminal Emulator: Tera Term Router is not currently connected to any sort of internet connection. Only the power cord and console cable are properly connected.
I know this question was asked many times, but I'm still not able to finalize my configuration on 871w. LAN part works fine, but wireless clients do not get DHCP IP. here is the config:
Building configuration... Current configuration : 2092 bytes ! version 12.4 no service pad service timestamps debug date time m sec service timestamps log date time m sec no service password-encryption ! [ code ].....
I'd like to have LAN and WLAN clients in same 192.168.1.0 sub net.
I'm unable to maintain a connection with an FTP host outside my network through my Cisco 871W Wireless/Wired router. I am able to establish a connection with the external FTP server, but when I attempt to transmit files I get repeated disconnections and failures.
The software running on the device is IOS C870-ADVSECURITYK9-M, Version 12.3(8)YI2 RELEASE SOFTWARE (fc1) Synched to technology version 12.3(10.3)T2 System Bootstrap Version 12.3(8r)YI
I know it has to be somewhere in the configuration, but SDM no longer operates and I'm not entirely familiar with the IOS command set. When I remove the Cisco device and plug my computer directly into my ISP network, I am able to send files via FTP with no problems.
i have a really simple home network setup using the Cisco 871W 4-Port 10/100 Wireless G Router (CISCO871W-G-A-K9). I can't figure out for the life of me what is going on. Web pages seem to "half load" sometimes (netflix, facebook, bank of america doesn't load at all, etc). It doesn't always happen. Sometimes the pages will load fine. I have tested with multiple computers so I know that it is the router itself. Below is my configuration. Ignore anything regarding the wifi. I know that isn't set up correctly. I'll deal with that later. I wanted to see if i was missing anything. Config is really basic. Attached is what one of the "half loading" web pages looks like
! version 12.4 no service pad service timestamps debug datetime msec
I have a 1242 Access Point as root and a 871W Router as a non-root bridge (Diagram attached). I have a laptop connected to Fa 0 of the 871W router.
* I am able to ping from the AP to the Router and vice versa * I am also able to ping from the router to the laptop and vice versa * But I am not able to ping from the laptop to the AP
All bridging commands seem to be fine. Even tried adding route commands, but none seem to work.Please find the configuration below:
I use a Cisco 871W router for my office in home -- I have Wifi working and want to add my new Blu-Ray player to the network -- I bought a WAP54G to use as a wireless bridge assuming i woudl just connect the WAP to the BLU-Ray with a ethernet cord. The instructions for installation of the WAP include connecting it to my router for the set up but the installation disk says it is not recognizing the WAP. I use Brighthouse for my ISP and the connection sequence is BH Modem to teh Cisco 871W -- the 871W directly connects to my CPU and to a Net gear FS105 fast network Switch -- the swicth connects to my VOIP phone , HP printer and external HD back-up system -- there is an open port onthe FS105 and two open LAN ports on the 871W.
I tried to install the WAP but connecting it to both the router and the swtich without luck. Is the WAP what I need to connect the Blu-Ray --- am i missing something in the set up?
I have an 871 set up at home with 2 VLANs, both of these vlans present a strange behavior where an user is unable to ping/contact another user on the same subnet, however if users are on different subnet it seems to work [code]
According to the troubleshooting that I have done, the issue seems to be with the broadcast traffic, ARP request/reply do not reach another host on the same subnet (wireless to wireless or wired to wireless) however if the wireless device iniciates the connection to wired, it works fine.
I have tried to enable proxy arp on the different VLANs and BVI and different combinations but no sucess in order to get traffic across 2 wireless devices on the same subnet or a connection that is iniciated for a wired client to a wireless one.
I tried enabling and disabling dot11 arp-cache but no luck.
I have a Motorola Surfboard cable modem with a Comcast account that is supposed to get "up to 15 mps". My desktop works gloriously, but my laptops and everything else hooked up to the net through my Media link Wireless N Router either run incredibly slow, or get kicked off completely.I've already had the router replaced one.
I have a Cisco 871w that has been a very great product for many years. I recently switched to Windows 7 x64 on my main machine and now i am having all sorts of issues with it.. I have done a bit of research and found that it appears that it might be the firewall on the SDM that is causing the slowness issues. what does happen is that downloads from known good sites will run really slow. If i hook up my Macbook Pro or my Windows XP laptop i have no issues at all. i have tried Disabling IPv6 as well as SMB2.0 and this has not resulted in a fix at this point.