Cisco Switching/Routing :: 877W ADSL Line Interface Not Initializing?
Jan 19, 2012
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?
NTP server When I setup NTP server to take time from [URL] everything is working fine but as soon as I reset my router during boot I can see that router is first trying to get time before it's even connected to ATM and when it can't get time from NTP server it's removing NTP line from configuration (ntp server uk.pool.ntp.org source Dialer0 ). How I setup to wait with sync and do it once ATM connection is up and established? Or How to get IOS to leave this line and sync with NTP every 10 min)?
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 have newly purchased Cisco 887 Router. I am trying to replace this router with the exisiting ISP provided modem I am facing an issue to bring the ATM0 port up.
Here is my router config
hostname Internet Router ! boot-start-marker boot-end-marker ! ! no logging buffered
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 did an upgrade from NX-OS 5.1.5 to 5.2.4 and found all M1 line card interfaces were stuck in initializing state for long time.'show module' status says ok. And we cannot execute shut/no shut command under the interface. N7K-M108X2-12L & N7K-M148GT-11 are the two M series cards. Only option was to downgrade back for the time being.
N7K01# sh int e1/1 | in down Ethernet1/1 is down (initializing)
While i was looking around in my stuff in the office i have found a Cisco 877W ADSL router .. so i have decided to use it instead of the one i am using now which is provided by the ISP that's made by Huawei.Anyway i have a good knowledge about basic cisco router configuration but i had never configured ADSL Cisco router, so i looked around on Cisco website, and i was lucky to get this two linksCisco DSL Router Configuration and Troubleshooting Guide - Step-by-Step Configuration of PPPoA with a Dynamic IP Address - Cisco Systems[CODE]
I have a couple of 3560 switches running c3560-advipservicesk9-mz.122-44 and they are randomly experiencing the following:
- The switch locks up with no preceding error message in the log (I am forwarding syslog to Splunk).
- Upon reboot, the switch goes through the normal startup sequence with no error messages, then for some reason reloads the flash and starts all over again. (refer to doc)
This could happen after days or weeks. Sometimes they will go through two of these reloads on boot and be fine for awhile, and other times they will be stuck in the loop infinitely. I am using this same image with all of our 3560s, but am only having this issue with two of them.
I have 5 to 6 878 routers and in all these routers the ATM interface is stuck up with initializing mode. This is the IOS running on it c870- advipservicesk9-mz. 124-15.T9.bin
I've created a BVI2 where I bridged dot11 0.2 and vlan2 in order to have wired and wireless clients in the same vlan.Some wired client are not reachable from the lan. Wireless clients have no pbl in reaching each other.Monitoring a MAC address that is supposed to be behind the FA2 I have noticed that it moves to vlan2 when in fact it should be behind the FA2.Of course when "show mac-address-table" says it is behind Fa2 the ping to that MAC address works whereas when the TCAM reports it is behind vlan2 it doesn't. Once the MAC address is behind the vlan2 if I clear the mac-address-table and that mac-address is still put behinf Fa2 then the pings works again, sometime I have to perform twice the clear command before the MAC address goes back to the right location.I'd like to understand why the router moves that MAC address from Fa2 to vlan2 and that's the reason for my question in the subject.I don't have any problems for port Fa0 and Fa1."Show int fa2" doesn't show any problem/errors or the likes.BTW even if I force that MAC address to be statically behind FA2 the ping works fine but then stops and if I do "show mac-add" the static entry for it is still there... so looks like there us something that overrides that static entry. If clear everything and I have the mac-address be behind Fa2 then everything starts to work again. I used Fa3 instead of Fa2 and I get the same results.
Probably this is a trivial question but I have not found any response to it. What I would like is to set my cisco 877W rotuer up in order to act as a DNS server which forwards DNS queries following these simple rules:
1.- If the name is within my local domain *.ib forward them to my local DNS 172.21.238.229 and .230, and
2.- Else forward them to the chosen public domains (i.e. 8.8.8.8 and 8.8.4.4).
The goal is to make a 877W to work as a wireless client of dlink dir320 and brigde the LAN&WLAN so than the LAN clients of 877W could take DHCP from Dlink 320 directly.
I have an 877W router that I would like to have a 2nd pre-configured backup for. I was thinking of getting another 870 series (probably an 877) router, as the more expensive wireless option is not actually required. Am I right to assume that I could simply copy the contents of my current config.txt file onto the second router?
Is there any way to have my Cisco 877W Router alter from using one static route to another static route when another router on the network is reporting destination host unreachable?
Router 1 (192.168.2.253) Dialer0 -> ppoe to internet Vlan1 -> local 192.168.2.0/24 Router 2 (192.168.2.254) Dialer0 -> ppoe to managed VPN (172.16.28.1) Vlan1 -> local 192.168.2.0/24
Router 2 is connected to another network through a managed VPN and that network also has internet access. I want to be able to have two routes to the internet on Router 2. And when Router 1 internet goes down packets get routed through the VPN instead.
I currently have on Router 2
ip route 0.0.0.0 0.0.0.0 192.168.2.253 ip route 10.0.0.0 255.255.255.0 Dialer0 ip route 0.0.0.0 0.0.0.0 172.16.28.5 250
Which does nothing when Router 1 has its Dialer0 interface shutdown, or goes offline completely.I suspect I could reverse the setup and have everything routed through the VPN by default and then if / when Dialer0 interface goes down it would switch to using Router 2, but if the problem is in the remote network and interface Dialer0 stays up, it would probably do the same thing... nothing.All devices mentioned are Cisco 877W routers with ADSL and a bunch of fast ethernet interfaces.
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.
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)
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..
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 it possible to set up a WAN interface on a FastEthernet interface of a Cisco 877 Adsl Router ?Due to my ISP, i've to use an external VDSL modem and must connect it to my cisco 877 router (and leave it's adsl interface unused).But i don't know how to set up a wan port, other than the adsl interface itself (dialer0), on my cisco.
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.
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..
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?
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 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
I have bought a WAG320 & ever since I've had it the ADSL line keeps dropping every few hours. The LAN network is fine & I have 7 computers connected to the router wirelessly. When I press the re-set button on the back of the router everything is fine for a few hours then it starts doing it again?
I have a Cisco ASA 5505 and I have my internal and external interfaces configured but I currently cannot ping from the inside to an IP Address on the outside. I had this setup and working and I have another set of equirement that I am replacing that is working with my service provider so I know it is a configuration issue. When I ping 4.2.2.2 for example I get:
Destination host unreachable
Do I need to add a static route from my inside interface to my outside interfaces?
how to clear vty line? Please see below. A sh tcp <line number> shows that the TCB is waiting for TCP Process. The TCP processs TCB is waiting for is SSH. I believe because of this ssh process still running, the vty line cannot be cleared.
sh users Line User Host(s) Idle Location 1 vty 0 pf 10.10.20.8 9w1d 10.10.1.54 2 vty 1 pf 10.10.1.16 35w0d 10.10.1.54 3 vty 2 pf 10.10.1.16 1y14w 10.10.1.54
