Cisco WAN :: 1800 / 2800 / 2900 - Using ADSL As Backup Line
Aug 1, 2011
Site A, site B, site C, site D is connected using leased line each other. We are using Cisco 1800, 2800 and 2900. Each site also have Internet connection using ADSL connected to firewall, we are using pix 501 and ASA 5510.My question is, can i use the existing ADSL line to be use as a backup line if the leased line is down on any of the site??And i want it to trigger itself, once the leased line is down, the firewall UP the backup line? something like that..
Site A, site B, site C, site D is connected using leased line each other. We are using Cisco 1800, 2800 and 2900. Each site also have Internet connection using ADSL connected to firewall, we are using pix 501 and ASA 5510.My question is, can i use the existing ADSL line to be use as a backup line if the leased line is down on any of the site??
And i want it to trigger itself, once the leased line is down, the firewall UP the backup line? something like that..
We have a few WAN connecting sites to ISP using BGP. we are looking at getting backup link for 1 site.
We have decide to use an IP WAN ADS L link. we will have 877 and 2800 for each link. from understanding, we have a static routing on IPWAN service. means when both BGP WAN and IP WAN connected to the ISP. ISP will use ADSL as primary ignore the BGP link. so other sites will see a BGP route coming from ISP via the ADSL link for this location.
So we have find a manuel solution, leave ADSL unplugged of power but setup same LAN ip address and connect the cable towards the core switch. when WAN link fail, switch on ADSL. So the static route will advertise to the rest of sites.
just want to know is there any auto solution can disable the ADSL link/ ppp link when the 2800/WAN route is up. and enable the ADSL port when the WAN is down. not sure if HSRP/backup interface/tracking will work? and how?
site office switch - > 2800 - > ISP - > ADSL -> ISP (need this link to be backup and protocol down, so the ISP will not able to connect to this link and advertise as next hop)
i have a problem with my adsl line connected on a HWIC-ADSL on router 2901 it was working good until yesterday the atm interface is down but the interface dialer is up .i connected this line into home adsl modem and the line is working good?
We have an MPLS network to a half dozen remote sites. At our main location we have a 2800 series router. In the routers config are the following lines for QOS. When I go to the routers on the other end of the MPLS, none of them are configured with these same policies. Would these not be in the running config of the 1800 series routers, or is this not setup correct and this should be removed?
I've problem with IP SLA probes between two different routers.2900 (c2900-universalk9_npe-mz.SPA.151-4.M4.bin) here is set "ip sla responder" only and 2800 (c2800nm-advipservicesk9-mz.124-24.T2.bin) here is set two type of tests "udp-jitter" and "icmp-jitter" - temporary, used to check for availability of 2900 router.As a result, I've what udp-jitter doesn't work at the same time icmp-jitter test is OK.Here are the settings of IP SLA tests
ip sla 281 icmp-jitter 172.25.28.1 source-ip 192.168.28.6 num-packets 100 tos 128 frequency 120 ip sla schedule 281 life forever start-time after 00:05:45
Leased line is between dammam to dubai and the dammam office is getting internet from dubai.The ip address of Dammam office is class A (Public IP) x.x.x.x and for dubai it is y.y.y.y which we are using as proxy for accessing internet.I purchase the local DSL direct line connection through cable from Local Provider and this ip address range is 192.168.1.0 - 192.168.1.254.Is it possible to use the DSL line as failover, so if one line goes down the user should remove proxy and can use local internet.The router which is using is cisco 1800.
I believe that failover is possible, 100%, but would like to know how I can do it and requesting for sharing more inputs about failover in this case.
I currently admin a WAN link between two international sites. I have a 2800 at each end. The primary connection between the two sites is 20MB Ethernet PIP MPLS BGP circuit. I also have a pair of T1's in a PPP multilink that I switch over to in the event the primary circuit goes down. I currently am doing the switch over manually. It takes me about 15 minutes to complete it, but I know there must be a way to make this an automatic process.
So a couple questions:
1) Is there a way to create an "enhanced multilink" with the 2 T1's and the Ethernet circuit in the same bundle, in effect giving me 23MBps bandwidth while still being able to maintain connectivity if one of the 3 links goes down? This is my preferred solution
and if 1 is not possible then
2) Is there a way to configure the router so if the Ethernet circuit goes down, all traffic will be automatically directed over the T1's, and then come back to the Ethernet when it's back online?
I need to implement the backup between two sites I have router 2800 which is having a point to point connectivity with the far end.At the far end there is no router ,only one firewall is there on that firewall one access-list is there to allow the traffic .To implement the back up link i have created a site to site vpn .But the problem is as soon as the tunnel is establised .For the time being i have removed by site to site config from both firewall.
One of my branch offices is connected to an ADSL line as well as a VDSL line.Since I really don't need the ADSL line I came up with the idea to use it as a backup line.So I searched google and found this nice little article URL. I wonder if the router will switch back to the primary ISP if the primary line comes up again?
I was configuring route tracking at a client with several sites to route across GRE tunnels and being able to detect a failure of the main site. To my surprise when configuring a 2800 series router (after sucessfully configuring a 1800 series on the same infrastructure), a 2821 with IOS 12.4(24)T2 IPbase, the commands for ip sla object tracking don't show up.The feature navigator says the router supports this, but it just won't take the commands (also tried older versions of the commands such as "ip sla monitor.." and "rtr .." to no avail).
In a site we currently have 1 BT provided ADSL link which is currently terminated using their device which I believe is some kind of 2wire device, which is extremely slow due to distance from the Exchange (4Mbps)...We have a growing number of users here and want to install a second ADSL line from BT to give them increased performance.
We have a Cisco 2800 sat not doing much so I was wondering if I could use this to load balance the link? I know BT do not support MPPP so therefore the maximum any user can get will be the speed of a single link (4Mbps)...But basically how can this be done..
Can I leave the two BT routers in place and place the Cisco 2800 behind them, or do I need to purchase two ADSL modules for the 2800 and terminate the connection there?Also once done, what do I need to do regarding actually setting up the load balancing? I have seen this:
[URL]
But am unsure as to how relevant it is? I am not sure I understand what the ACL's are being used for? I just want all users on the LAN to load balance out...
Also I am unsure of this statement:You potentially need to add policy-based routing for specific traffic to ensure that it always uses one ISP connection. Examples of traffic that require this behavior include IPSec VPN clients, VoIP handsets, and any other traffic that use only one of the ISP-connection options to prefer the same IP address, higher speed, or lower latency on the connection.I do not understand why a established session such as a VPN client, would ever traverse the second ISP connection anyway?
We have a fairly major problem with some of our Cisco 877 units (5 in all). All are running 15.2(2)T2 in order to make use of zone-based firewalls and virtual reassembly, and all are exhibiting the same problem. When our ADSL line drops this si shown in syslog
2010-11-09 01:03:06 Local7.Info 192.168.7.1 4733: Nov 9 01:03:05.707: %FW-6-DROP_PKT: Dropping tcp session 192.168.7.2:25 109.224.142.52:41799 on zone-pair OutsideToInside class cm-MainServerServices due to RST inside current window with ip ident 02010-11-09 01:04:06 Local7.Info 192.168.7.1 4734: Nov 9 01:04:05.946: %FW-6-DROP_PKT: Dropping tcp session 192.168.7.2:25 109.224.142.52:41809 on zone-pair OutsideToInside class cm-MainServerServices due to RST inside current window with ip ident [code]...
The "no retrain. sleep 20 seconds" messages continue forever more until somebody power-cycles the router - which is a bit inconvenient as two are 300 miles away. Surprisingly, our event manager applet isn't triggering the reload either, which defeats the object.
I have Cisco 2800 series router. When I am trying to write memory getting error message " Error opening flash:config-backup-1 (No more root directory entries available)" When there is simultaneous access to a router's NVRAM, we might encounter these errors. In order to clear the line the other user(s) is (are) connected on and free the NVRAM, issue the clear line command. But still getting the same error message.
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)
I have D-link 2640U ADSL2+ modem. Now I have 12Mbps / 1Mbps internet connection. I am planning to move to 24Mbps /1Mbps intenet connection and I want to know if this modem is enough. What is the best modem so I get the full 24Mbps[CODE]
Is there a way to find in a remote branch the adsl line number in a cisco router 886VA.
When giving show controllers vdsl 0
we can see the upload/download speed but there is no information about the line number. We need this information in order to troubleshoot adsl line problems with our ISP's in remote branch offices.
I do have a question, is WIC-1SHDSL-V3 able to support ADSL line?
We have WIC-1SHDSL-V3 module used for SDSL line, due to few site need to bring up with ADSL line with 1841 model, but HWIC-1ADSL module already EOS. The replacement model EHWIC-VA-DSL-A is not compatible to 1841. My architect suggest Symmetric Module like WIC-1SHDSL-V3 could be able to tweak the config to support Asymmetric purpose. I did google but do not found such related topic. Can any expert on this area to advice me?
Our church has 1 phone line, we run BTBusiness Broadband at one of the building where we have a couple of charities based. We have the phone line connected to an extension at the other end (where the Church is) >80m away. Any way of running a second concurrent router on the extension so I can set up an office with a VOIP number, pC's printers etc there too? We use Devolo ethernet over mains and wireless for the main building, but the church itself is on a completely seperate mains power supply so I can't use that. I could run 100m Cat 5 and locate a switch on that, but any way of achieving something similar over the phone cable which is already in place.
Can I install 2 ADSL routers on one telephone line with SKY. If I can does this mean that if sky give me 20mb connection, I can get two lots of 20mb using the two routers.
I have a broadband router (Linksys E1000) which I've flashed with a DD-WRT firmware. After doing so I realized that this router doesn't have an interface for ADSL port(RJ-11). How can I use the Linksys E1000 for my home network?
I've heard that I can use ADSL modem(not a router) & plug the RJ-11 to it & take from it the Ethernet & plug it back to the E1000(in the WAN port) would that mean that I can get just a modem and not a hybrid?
Note: Also, I have to mention that my ISP is using PPPoA & DD-WRT is not supporting it, but i googled & they said that the ADSL modem cab be the rescue. Can I pick any ADSL modem for this specific scenario or am I looking at a specific model?
Secondly, can I use my old router to do the job instead of buying a new ADSL modem ? & is it a good approach ? or should i buy a new ADSL modem ?
Update i turned my DD-WRT router(E1000) to act as access point, since this is the only way that i can use it with the DD-WRT feature. & i think this is better than have nothing :) I can now have the DD-WRT functions ;)
I have ADSL router Linksys X3000, but I have an issue with it. I have configured it properly (based on internet provider's manual), repeatedly checked it, but router still says that ADSL line is down. I have also another router from Zyxel and it works perfect with same wire and configuration, so I guess the line is fine.
I'm about to install a new E1 onto my 3845 as backup line for my data network. We usually use VWIC2 cards since our infrastructure covers EU and US sites. But this time, I ran out of stock and so did my supplier. I have a VWIC-1MFT-G703 card here but not sure if it would work. What is the difference compared to the regular VWIC-1MFT-E1 ?
we have a Cisco 1801 at one of our remote sites that uses an ADSL line for it's primary connection and ISDN as backup. Despite no apparent problems with the ADSL line the ISDN is repeatedly dialling the internet every 2-3 mins during office hours and considerable expense to the customer.
Is the ADSL line interface on Cisco 877W not initialising a known issue? This interface on my router has been in this state for more than one month, with the rest of the router seemingly operational. The interface was connected directly to my ADSL broadband and worked well for two years. But then, about a month ago, the interface went down. I saw the exact moment this happened recorded as a syslog message. The only information was that the interface status had changed to down.
Initially I thought this was a matter of reload the router and all will be well. Did not happen. Then I thought my broadband connection was to blame. However, this option was quickly ruled out. So I went on to exhaust all troubleshooting options, including reflashing the router with the saved image and totally changing the configuration. Still no change. I have had to go back to my old BT home hub for internet access. In terms of speed this actually works a lot better than the Cisco router. But I would still rather have the router connected to my broadband line. What can I do to bring the ADSL interface back to life?
On my old router I could access the line stats on the home page giving me Attenuation and SNR margin, this allowed me to keep an eye on line quality, there seems to be no equivalent info on the X2000. Is this on a hidden page like the advanced wireless page.
Region : Argentina Model : TL-WR740N Hardware Version : V4.20.0 Firmware Version : ISP :
Region : UnitedKingdom Model : TL-WR702N Hardware Version : V1 Firmware Version : ? ISP : Manx net
Within a property without an available adsl line I'm simply trying to network a wireless laptop with a wireless printer. Both devices recognise the router, etc, but problem sending file for printing to the printer. (laptop does not detect printer). Is the lack of an internet connection the issue or simply a configuration issue?
Rolled patch cable RJ45 to DB25M adapter (pinout from a cisco guide)
So far I am unable to get the router/modem to dial out at all. I know the modems work, I have tested them from Windows.
I have attached a couple of outputs from "show line" and "show line 1" from the router and also what I think are the relevent lines of config although it will be too much config and probably jumbled by now as I've tried quite a few things to try and get this working.
I am more concerned with the config relating to the connection of the analogue modem than the routing element.
i will going to buy a router 2911 but i want know if support a interface ADSL modulo like backup in case that my primary link WAN Ethernet down and up the adsl link with a module HWIC ADSL pots.
We have a remote site connected to ADSL line with a Cisco 887VA router attached. This has been working fine for the last couple of months. However, recently, the site have started to complain of performance issues (network slow, applications disconnecting, etc)Looking on the router, we can see evidence of packet loss/timeouts from a simple ping to the internet e.g. [code]
However, we have logged the fault with our service provider and they return all line tests as clear but what is particularly strange is that they also report “and the SNR Margins are well within threshold levels (Upstream 11.5 and Downstream 15.0)” which, unless I’m misunderstanding something, seems to be completely different from what the router itself is reporting.Is there a reason why the service provider’s stats for Noise Margin would appear to be so different from what the router is reporting?
I've moved a Cisco 887 router from a site where it was used to dial up on an ADSL line to a new site where we have a EFM circuit which terminates at a Cisco 1841 router managed by our ISP. I therefore need to re-configure our 887 router to work as a conduit from our servers back to the Cisco 1841 as its gateway.
I have asked from our ISP and they told me that i need to configure the 887 to use IP address 176.35.140.65 255.255.255.248 and its gateway should be 176.35.140.70. That's great advice in theory but I don't know how to configure this correctly
Our internal network is using subnet 192.168.42.XX which will need to be retained for local devices.
I can connect to my router but not to Internet, it seams that ADSL line "disconnects" my LAN/WLAN this issue is with Inalambrico 6867R router an other router, TP-Link is working great
