Cisco WAN :: 1801 / LAN Not Communicating With WAN
Apr 22, 2013
Writing my first router config from scratch for an 1801. I have wireless devices able to connect & authenticate with WPA. Wired devices can talk with wireless devices & on both interfaces devices obtain a DHCP lease. I can ping web based resources from the FA0 interface; the problem is, LAN devices can't ping has FA0. I'm pretty sure (well a hunch) that this is going to be down to NAT
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname Router0
.[code]...
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Oct 22, 2011
what is the practical result ? Can it be fixed ?
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Dec 1, 2011
We have cisco 3550 switch i have configure 3 vlans in this switch. i have enable routing between this vlans but vlans not able to communicating with each other.
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Feb 11, 2013
Can a Cisco 1801 FE0 port be sub-interfaced?
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Oct 8, 2012
This is my first attempt at configuring an 1801 and I am getting extreamly low bandwidth.Tests show up/down speeds on around 100kbps. I can't see any reason with the possible exception of the show dsl capacity values which never seem to change. How to point out my config error.
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Jan 30, 2012
Is it possible to log onto a router over the internet using a pooled IP address? I want to be able to manage some routers that are in different sites, these are just providing internet access to clients. these are 1801 and 877s
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Apr 19, 2011
I have a cisco 2811 with security bundle with IOS 12.4(13r)T I am planing to use this router as a VPN gateway for company ( i.e)
1. LAN 2 LAN VPN ( Supporting if remote site is having dynamic IP)
2. Remote access VPN for VPN client
I have configured the router ( attached is the configuration) I have not tried to use the LAN to LAN VPN ( first i complete remote access VPN and then check L2L) I tried to use the remote access VPN I am able to connect from vpn client software and got the IP address but unable to ping the servers in LAN.
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Jan 15, 2013
here's the network.
Panasonic TV (DLNA Device) - Ethernet
WDTV Live Plus (DLNA Device) - WLAN
Windows 8 PC - Ethernet
Windows 7 PC - WLAN
Samsung Galaxy S3 - WLAN
The WDTV can act as a media player for both the Windows 7 PC and Samsung Galaxy S3.The TV can act as a media player for the Windows 8 PC.If I connect the Windows 7 PC via Ethernet, then the TV sees it and can act as a media player for it and the WDTV no longer can.The TV can't act as a media player for the Samsung Galaxy S3 nor can they see each other to use the Galaxy S3 as a wireless remote (Viera remote android app) .Why can my wireless devices talk to each other and my wired devices talk to each other, but the wireless devices can't talk to the wired devices?
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Jan 1, 2013
I've got several devices (two laptops, Xbox, WiiU, Apple TV, 2 ipads, and an iphone) that can connect to my home wifi network just fine. However, when connected it seems these devices cannot communicate with one another.
Homesharing between my iphone/laptop and Apple TV is no longer functioning. Also, I can not sync my windows media player with my Xbox, and I can not connect my iphone to the Xbox using AirMusic.
Here's my hardware: Motorola SB5101U SURFboard modem, Netgear Wireless N WNR2000 router.
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:Windowssystem32>ipconfig/all
[Code]......
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Nov 26, 2012
I am tryng to install a printer wireless and my computer isn't communicating with the printer, although its connected to the router.
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Feb 21, 2013
I am using windows 7 OS(32-bit) and it is creating automatically the sessions and communicating with different static ip's.I have find out by using netsat -n command
TCP 192.168.3.22:50746 210.210.113.83:80 SYN_SENT
TCP 192.168.3.22:50747 210.210.113.81:80 SYN_SENT
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Apr 27, 2011
My wireless router stopped working. When I plug directly into the modem the internet works finely.
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May 8, 2012
I have the following equipments & specifications
1 Mac OS
1 Windows XP
1 Linksys Cisco WRT600N router
My Mac OS will be on a local subnet (example 192.168.1.0/24), and my Windows XP will be on another local subnet (example 192.168.2.0/24).
How am I supposed to configure my router in order for both of my 2 subnets (Mac OS & Windows XP) to "talk" to each other ?
On another note, I would also like my MAC OS IP address to be dynamically assigned from the router (DHCP server for this subnet), while my Windows XP IP address can be statically assigned.
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Jul 13, 2012
I have a Cisco 1801 that I am trying to set up for my DSL connection. I have configured the router but when I try to access a web site I receive the Http 404 page cannot be displayed error. I have checked my DNS server on the router & I believe that I have configured it correctly? I am hoping that one of you more experienced individual can take a look & tell me where I might have gone wrong. I have included the current running-configuration for your viewing pleasure.
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Oct 19, 2011
I'm trying to set up an 1801 router with two WAN interfaces, fastethernet0 and fastethernet1. On the LAN side, I have two subnets. One subnet's internet traffic should be routed over fastethernet0, the other over fastethernet1.I've setup some route maps to accomplish this. I can surf the internet using subnet 192.168.2.0/24 fine, all traffic goes out of fastethernet0. However, and this is where the problem is, if I try to reach the internet using subnet 192.168.3.0/24, all packets go out interface fastethernet0 with the source address of fastethernet1!When I'm surfing the internet, from subnet 192.168.3.0/24, packets should be going out fastethernet1, now they're going out fastethernet0.
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Apr 5, 2012
I'm having difficulty logging onto my 1801 router over the internet I can ping the device and tracert to it but I can't telnet or SSH ,Here is the config - Can you see whay this would happen. Its on ADSL link.
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Sep 27, 2011
I have two offices - see attached diagram. They use 192.168.0.0/16 for private IP addreses.They're connected via site-to-site VPN. Mostly works well, except some traffic doesn't return and I think it's due to NAT?When a workstation in remote office tries to access web servers in the local office which using private IP addresses (e.g. .64.40), traffic never returns. The web servers in question are also accessible publically - the Cisco 1801 in local office has a static route:
Local1801# ip nat inside source static tcp 192.168.64.40 80 111.111.111.2 80 extendable
The problem seems to be with the local 1801 router. tcpdump confirms that return traffic exits out of ods1's external interface and tcpdump confirms that traffic does not come into remote workstation's interface (neither with .64.40 as source IP nor 111.111.111.2 as source IP)
Remote887# show ip nat translations - none.
Local1801# show ip nat translations
Pro Inside global Inside local Outside local Outside global
tcp 111.111.111.2:80 192.168.64.40:80 192.168.10.254:54990 192.168.10.254:54990
What I don't understand is why a nat translation entry is created. My understanding is that it should only happen when ip packets are sent to 111.111.111.2:80 I don't see that any packets would be sent to this IP address when accessing the site across the VPN - in fact the VPN peer address used is not this one.I cannot figure out why on earth this website cannot be accessed via private IP. I have tried clear ip nat translation * on both routers with no luck.
Relevant Cisco config snippets included below:
Local1801 VPN and NAT config
------------------------------------------
crypto map VPN-MAP 1 ipsec-isakmp
description "Local-Remote VPN"
set peer 222.222.222.222
set transform-set VPN-TRAFFIC
match address 101
[code]....
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Jul 16, 2012
we have cisco 1801 router and want to configure for PPPoE.As our ISP has provided adsl connection having following settings:
Encapsulation: PPPoE
Multiplexing: LLC based
VPI = 0
VCI = 103
Login =xxxxx
Password =xxxxx
IP: dynamically from ISP
configuring cisco router 1801 for above configuration.
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Feb 25, 2010
I have a number of Cisco 1801 routers connected to BT UK’s ADSL2+ Annex-A Wholesale Broadband Connect [WBC] services. The routers are experiencing connectivity issues. There is a cisco product bulletin that defines v4.0.0.18 as the version of ADSL Firmware required on the Cisco 1801 when connecting to this BT service.I would like to upgrade the ADSL Firmware for these routers but I cannot find v4.0.0.18 for the Cisco 1801 on CCO. All the 4.0.0.18 downloads appear to be for various flavours of 800. The Cisco product bulletin shows the 1801 as having the same chipset as the 857,867,877 and 887. Can I use the Firmware from one these 800 models? The MD5 Hash for the code suggests all of the these 800 model use the same code?
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Jun 10, 2012
when I'm trying to configure my router 1801 with PPPOE I have the message below "% PPPoE config from vpdn-group is converted to pppoe-profile based config.% Continue PPPoE configuration under 'bba-group pppoe global'.
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Jun 8, 2011
I have a Cisco 1801 Router, but whenever there is anything plugged into the integrated 8 port switch for example two computers, I cannot get them to ping each other. All of the ports are on the same vLAN.
I am a Cisco newbie, so sorry if this question/query is really basic. Is there anyway I can test the integrated switch to see if it is faulty.
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Oct 9, 2012
ADSL line do not activate. Telco Confirmed Like is Okay . They have tested no issue observed. Router replaced but did not work. Supspecting Firmware not compatible with telco . Not sure how to confirm on this.
sh ver
Cisco IOS Software, C180X Software (C180X-ADVIPSERVICESK9-M), Version 12.4(4)XC7, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Tue 31-Jul-07 20:24 by alnguyen
ROM: System Bootstrap, Version 12.3(8r)YH8, RELEASE SOFTWARE (fc2)
XXXXXXXXXXXXXXXXXXXXXXX uptime is 30 minutes
System returned to ROM by reload at 18:48:26 UTC Wed Oct 10 2012
System image file is "flash:c180x-advipservicesk9-mz.124-4.XC7.bin"(code)
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Jun 27, 2012
I enabled dual stack on my rv042g router but its not recieving ipv6 information from my isp. My isp is Time Warner in Milwaukee. They assure me that they are ipv6 ready and assume the problem is on my end. All they want to do is have me connect one computer up to my modem. What good is that when I have a network that needs service. The router needs to be working not just one pc. My ipv4 is working perfectly. It is obtaining all information automaticly.
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Jul 3, 2011
We have NAM-2 installed in 6500 chasis. Some times in GUI It does not analyse the traffic and shows the error msg"error communicating with RMon daemon". But at the same time we can login to NAM through CLI,
The issue resolves by reseting the module by hw-module switch "" module "" reset but not always and happens not very often,
Device details:
NAM application image version: 4.0(1a)
Maintenance image version: 2.1(5)
NAM Daughter Card Micro code version: 1.34.1.28 (NAM)
[Code].....
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Aug 20, 2012
I have a client that I recently replaced their GSS's for and last evening I cut them over to an HA pair of ACE 4700's. After about an hour, it looks like the GSS and ACE stopped communicating with each other. When this happened, they switched back over to the old CSS appliances and everything came back up fine. Apparently this happened the last time they tried to cutover to the ACE and they contacted TAC. TAC told them the issue happened because the GSS's they were running at the time were EOL. So now, with brand new GSS's, they are experiencing the same issue.
As of now, the ACE's are offline and I cannot get into them to see what the issue may be. We tested the sites out last night after the cutover and everything seemed fine. There was one minor problem that I resolved quickly, but that was it and then we left. The client started getting emails about an hour later about their main website being down. They do have the ACE logging to a syslog server, so we will look at that to see if there is anything relavent. I suggested that we bring up a test site to use through the GSS/ACE and see what happens. They have another CSS that they can run their sites through, so this option will work without taking down all of their other sites.
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Jan 30, 2012
We have a new site-to-site configuration comprised of two ASAs (a 5505 at the remote site and a 5510 locally). The site-to-site tunnel is up and appears to be working fine, with the exception of one thing; two identified IP addresses on the remote end cannot seem to communicate across the tunnel.
For example: address 192.168.3.81 is able to see resources at our facility, but 192.168.3.82 (an HP Laser jet P2055dn) cannot. However, 192.168.3.82 is ping able from the inside interface of the remote ASA and doesn't appear to be having any other connectivity issues. Also, the default gateway of this device appears to be set properly. When checking the real-time log viewer, I'm not seeing any error messages, it just appears as if the .82 device is not routing to the remote ASA, but strangely enough the local ASA's logs do seem to show communication with .82. (See the below logs.)
When we attempt to ping the 192.168.3.82 address from a local PC (10.10.10.10) that participates in the VPN tunnel, we see the following:
Local ASA
6|Jan 31 2012|16:03:53|302021|192.168.3.82|0|10.10.10.10|512|Teardown ICMP connection for faddr 192.168.3.82/0 gaddr 10.10.10.10/512 laddr 10.10.10.10/512
[ code]....
Remote ASA
6|Jan 31 2012|16:03:53|302021|10.10.10.10|512|192.168.3.82|0|Tear down ICMP connection for faddr 10.10.10.10/512 gaddr 192.168.3.82/0 laddr 192.168.3.82/0
[ code].....
We can successfully ping 192.168.3.81 from the same local workstation we see the following on the remote ASA :
6|Jan 31 2012|16:03:38|302021|10.10.10.10|512|192.168.3.81|0|Tear down ICMP connection for faddr 10.10.10.10/512 gaddr 192.168.3.81/0 laddr 192.168.3.81/0
[Code]....
We have no IP address overlapping and neither ASA's logs show any errors. Unfortunately, we don't have access to the remote site's router configurations, but we've been assured that the issue is not on their end.
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Oct 29, 2012
have the following set up: cable modem>wifirouter>gigabit ethernet switch>to 16 ports throughout house. When I connect a second wifi router to any port around the house, the internet does not work when connecting to that specific router, however, if I use a lan cable and connect direct with my mac or cpu, internet works fine. wifi routers are not communicating with LAN ports
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Aug 27, 2012
I lost internet from the ISP and parts of our LAN went down.We were able to reproduce the error.Problem: Internet from ISP drops, program using port 10541 within the LAN stops communicating with a server.The computer and server are on the same switch, neither require access to the internet.How we fixed the problem, temporarily: Unplugged the power from the cable modem.How we reproduced the problem: Unscrewed the cable drop to the modem and powered it on.I have checked our firewalls logs and have seen nothing that stands out. I was able to ping the server from multiple computers, including the one that had the program running on it.Also while the internet was down, I tried removing the DNSs from the computer running the program, this made no difference.
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Dec 16, 2012
Had to change my wireless box and now my wireless Dell V505 cannot communicate with the new box. Unable to print.
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Mar 28, 2013
I recently got new internet service and now my wireless printer and laptop are not communicating. I think I need the wire to plug into the laptop + printer, but I lost it.
Printer: Dell V715W
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Jun 5, 2012
I have an FTP server that sits behind a cisco 1801 router.But now i want to add in FTP ports 21 and 20. I have added them in but i cant get it working via ftp.If i plug into the LAN and give my laptop an ip address on the same range as the server (192.168.2.100) then FTP works fine -
[code]...
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Aug 9, 2011
Network Setup
===========
2 Site to Site VPN tunnels has been established, it is a hub and spoke topology. The hub is ASA5520 and the 2 spoke are a 1841 and 1801 router. The tunnel is able to pass traffic, it's a full tunnel VPN.The tunnel randomly disconnect for no reason. When I check the logs I can see some errors :
%CRYPTO-4-RECVD_PKT_INV_SPI: decaps: rec'd IPSEC packet has invalid spi for destaddr=x.x.x.x, prot=50, spi=0x5F822579(1602364793), srcaddr=y.y.y.y
%CRYPTO-4-IKMP_NO_SA: IKE message from y.y.y.y has no SA and is not an initialization offer
The actual address have been replace by x.x.x.x and y.y.y.y. I frequently have to peform clear crypto isakmp on the spoke routers to revive the VPN tunnels. Is there a way the tunnel can be re-establish again without manual intervention?This keep happening on a random basis and I have living with it for years. I have looked at cisco website troubleshooting tips and but no luck in finding out how to resolve it.
Below is my config on one of the spoke router:
==================================
Cisco IOS Software, C180X Software (C180X-ADVIPSERVICESK9-M), Version 12.4(24)T3, RELEASE SOFTWARE (fc2)
crypto isakmp policy 10encr 3deshash md5authentication pre-sharegroup 2crypto isakmp key @@@@@@ address y.y.y.ycrypto isakmp invalid-spi-recoverycrypto isakmp keepalive 30 periodiccrypto isakmp nat keepalive 20!!crypto ipsec transform-set tset1 esp-3des esp-md5-hmaccrypto ipsec df-bit clear!crypto map ipsecvpn 10 ipsec-isakmp
set peer y.y.y.yset transform-set tset1match address vpn@spoke!archivelog config hidekeys!!!!!interface FastEthernet0ip address x.x.x.x 255.255.255.248ip nat outsideip virtual-reassemblyduplex autospeed autocrypto map ipsecvpn!interface FastEthernet1!interface FastEthernet2!interface FastEthernet3!interface FastEthernet4!interface FastEthernet5!interface
[code]....
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Mar 13, 2011
I have multiple customers with either 877 / 1801 routers with dsl issues, we keep dropping sync , get slow speeds etc,
I have already updated to firmware 4.018, in some cases it has resolved the issue in others it has not, BT say their lines are ok, but still i keep getting issues.
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