Cisco WAN :: 888 SHDSL Routers Back To Back
Dec 15, 2011
I'm having some trouble getting two Cisco 888's to work correctly back to back.. The two routers will ultimately be used in conjunction with a BT EPS8 circuit which is effectively four wires short distance between customer sites. We have configured lots of these using the older Cisco 878's.
Anyway, as i've been struggling to get line sync on site I've gone back to basics and connected the two 888's back to back. However, I've found that no matter what I do I can only get the routers to sync at 384kbps!? And that's with a one meter RJ11-RJ11 cable.. Very strange. When we've used the 878's we get much more bandwidth. I have tried statically assigning the line rate at both ends but it still only works at 384kbps.
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Apr 7, 2013
I searched a lot but couldnt find a clear document about connecting 2 G.SHDSL routers back to back.First of all I am not sure which type of cable (RJ11) is used for connecting two 878 routers. Does it have to be cross or straight cable.
Which RJ11 pairs will be connected each other [code]
According the configuration samples One router must be CPE and the other must be CO for simulating DSLAM.
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Feb 29, 2012
Just to get this clear as having issues with a E1 link with CRC's at one.Router A,Network-Clock-Participate WIC 1,Should router B have clock participate for WIC 1? We currently have controllers set as UNFRAMED but guess we can set to NO-CRC4 both ends and telco will pass this.
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Jan 7, 2013
I'm looking for instructions on how to setup and connect two RV082 routers together with a crossover cable between their WAN ports. This is to connect two separate LANS together via an ethernet connection. For staging we are setting everything up with a crossover cable in our shop. Ultimately the crossover cable will be replaced by a microwave link between the two LANS several miles apart. There will be no internet connection.
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Nov 25, 2012
I have a Cisco 8510msr that is connected back to back with a 7206vxr across a 155Meg connection.I receive lots of Output drops on the 7206vxr interface facing the atm switch. When I do the following command:-
kwdair9#sh atm int atm 1/0Interface ATM1/0:AAL enabled: AAL5 , Maximum VCs: 4096, Current VCCs: 27 Maximum Transmit Channels: 0Max. Datagram Size: 4528PLIM Type: SONET - 155000Kbps, TX clocking: LINECell-payload scrambling: ONsts-stream scrambling: ON797522 input, 881483 output, 203946630 IN fast, 223768062 OUT fast, 0 out dropVBR-NRT : 110288 Avail bw = 44712 <====
I only have 44megConfig. is ACTIVEkwdair9# I only get 44Meg of the available 155Meg.There is no QOS on the router and the only commands I can find that vaguely see that refer to QOS are on the ATM switch:-
atm address 47.0091.8100.0000.0007.0d87.b201.0007.0d87.b201.00atm router pnnino aesa embedded-number left-justifiednode 1 level 56 lowest redistribute atm-static?why this is acting like a DS3 link and not a 155Meg link?
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Dec 4, 2011
What cable I need to connect two 2951 back to back through a HWIC-4T1/E1 card ?
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Apr 11, 2013
I have two site that has a copper wire ( 2 wire) connection between each router ( No Telco in between ). Now I want to use 1921 router with HWIC-4SHDSL-E card to connect these two site together. Can I use attach configuration to make the connection reference from the diagram ?
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Nov 25, 2011
I have 2650XM router and 2620 Router Both routers have built in WIC T1 CSU/DSU cards
2620Router --
2620Router#sh int se0/0
Serial0/0 is down, line protocol is down
Hardware is PQUICC with Fractional T1 CSU/DSU
Description: DTE side
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
[code]....
My question is that cisco website says there are two type of cable connections for this type of config --which are --T1 CSU/DSU ConfigurationSet one CSU/DSU to clock source internal, and the other CSU/DSU to clock source line. The linecode, framing, data-coding, and timeslots must be set the same on both CSU/DSUs.Four-Wire 56k CSU/DSU Configuration For my network connection which type of config i should use??Secondly i try to connect these ports by normal crossover cable it did not work.So for this type of connection i know i need T1 cross over cable-- which has RJ 48 connections at both sides.I check cable from ebay which is RJ45 RJ48 cross over -- will this cable work in my router to router connection.
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Oct 19, 2012
I have 1 2611xm router and 1 2801 router. For my own lab purpose, i want to configure them back to back to support voice services. I don't know what configuration will be required at each end. in 2611xm, i have NM-2V and its also detecting the card, so i hope it will work ? also what commands i need to run on both ends .
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Jan 8, 2013
I would like configure two router (e.g. 1921) back to back via a 2 pin copper wire. Can I use HWIC-4SHDSL-E card to do it? What is the configuration I can use?
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Apr 14, 2013
I have two site that has a copper wire (2 wire) connection between each router ( No Telco in between )Now I want to use 1921 router with HWIC-4SH DSL-E card to connect these two ste together.Can I use attach configuration to make the connection reference from the diagram?
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Aug 28, 2012
securing a back-toback connection using E1.The connection is between two cities, using 2x CISCO 1841 router + VWIC-1MFT-E1 interface at each city.
The E1 connections has been provided by our local telco, and they are completely private. The customer is a bank, and they asking me if this is a secure connection or not. If possible, we need to guarantee that no body can get access to the bank network even if they brought E1 modem at one of the ends (telco PoP).
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May 26, 2013
I am setting up my lab using two 2901 routers which is running on 15.2 IOS.I am trying to simulate a back to back BRI.BRI Module: WIC-1B-S/T-V3 (x2) one of each router.
I followed this amazing document to understand the concept of BRI and configuration. url..but it never says if i can use the module that i have mentioned.
Q1. What cabling i need to use to setup back to back BRI using 2x 2901 routers with these modules?
Q2. What cabling do i need to use.
Q3. Is it actually possible to use these 2 modules alone to simulate a back to back BRI..?
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Sep 30, 2011
I recently replaced a client's router with a Cisco RV 120W. The client employs a web-based application on an internal server that manages their business. Workers in the field use a handheld device power by WIndows Mobile to access a mobile version of the the web-based app. Data contained on the mobile app syncronizes with the server when workers choose a sync menu. Some workers perform this sync in the field, others wait till they return to the office and use the wireless provided by the router. Prior to changing the router, the synching worked fine either inside or outside the company network. The mobile app accesses the internal server via the router's public IP address. The router forwards the http requests to the internal server. But now the synching does not work internally. I assume it's because the Cisco RV 120 W does not support NAT Loopback, or I simply haven't figured out how to enable it. Does anyone know how to enable NAT Loopback on the RV 120 W so I can access the web-based app by through the router's external IP while on the private side of the LAN??
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Mar 31, 2013
I turned a Belkin Surf N300 into an access point using the settings page via IP address, now I can't seem to find that page again so I can switch it back. The model number is F7D6301 v1.
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Feb 20, 2013
How can I configure Belkin N1 Vision Modem router to use Back to My Mac? Bcos in iCloud preferences its give me a error message "setup router for better performance"
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Oct 2, 2012
I have 1941, 2901 ISR routers. I will use 3G backup when primary link (metro ethernet / G.SHDSL) goes down. Do I have to use Data License (SL-19-DATA-K9 / SL-29-DATA-K9) in order to switch back to 3G when primary link is not reachable) ?
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Aug 5, 2012
we are busy with a local service provider ( ISP ) and they want to evaluate the SRP500 series and have a few questions that i cant answer clearly.
Can the router auto provision back to the ISP's site , aside from the USB bootup option. i.e manufacture programmed "version "to dial into a specific ISP to provision.
Central administration of SRP500 series: Can the ISP manage and update/ close down SRP500 from a central point. I know the TR069 is std on the SRP500 series, but what does this encompass.
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Mar 6, 2013
I am trying to make this router prefer Wan1 for outbound while listening to both WAN ports for Inbound. I set it to Load Balance mode and added in a rule for Protocol binding:
All Traffic( TCP & UDP/1-65535)>192.168.1.1~192.168.1.254(0.0.0.0~0.0.0.0)WAN1 ENABLED
This says bind all Outbound traffic to anybody to WAN1
My Wan 2 connection is over satellite so it is easy to tell if a ping is going over Wan2 because the latency is >600mS
If I start a continuous ping to outside site - eg Yahoo.com then if I Fail WAN1 I see the ping latency Jump from 30mS to 700mS as it starts to use Wan2. If I restore the Connection to Wan 1 then the pings stay on WAN2 - seemingly forever. If I stop pinging for 30 mins then a restart of pinging does use Wan1 - so it fails back eventually If I restore Wan1 and then remove Wan2, it fails back right away
My problem is with our VOIP which uses a connection keepalive so there is no real downtime for the router to release the path to WAN2 should it fail over how I can force the router to fail back to Wan1 without removing Wan2?
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May 11, 2011
I have a desk top not wireless i have a laptop wirelesss i have a linksy wireless router i jumped or seomething happen to my desk top i have no promlems getting on line. My desk top used to be on network abc and now it says it is hooked up to network 2 and all these messages keep coming up with my firewall i tried to get back on abc network and can't i have to play around to get on network 2 to get on line.
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Mar 15, 2012
How to get Scrabble back.
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Dec 19, 2012
Is it possible to get a PAK back from a license? For example, if the PAK is joined with the wrong serial number is there a way to revert the binding of the PAK and serial to get just the PAK again?
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Jun 15, 2012
I am currently working on a project which purpose is to establish a TCP connection between a PC and a microcontroler.I configured (in C language) the µC as the server, and the PC as the client (in C#, using the TCPClient class).While running the codes, I capture the frames on the network with Wireshark.The client's ISN is chosen randomly by the TCPClient.Connect method.Since there will be only one TCP connection at a time, the server's ISN is always 0.The server's port is 0xC0C0 (49344) and the client's port is also chosen randomly by the TCPClient.Connect method.find the screenshot of the Wireshark's capture attached.In compliance with RFC793, the three-way-handshake should conclude with an ACK segment from the client.In my exemple, the client tries to connect three times, and then drops : the client sends no ACK segment.The µC's SYN-ACK reply may be bad configured .What kind of information did I miss ? Are there special data the client is expecting ? Why don't I get back an ACK segment from the client?
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Jun 10, 2011
Can I retrieve emails that were deleted in error.
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Feb 1, 2013
How do I get printer back online?
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Feb 9, 2011
I need USA style log. I have a DIR-825 B1 with Firmware Version: 2.05WW. How can I setup (; go back) to the USA 2.05NA version? The firmware upgrade was failed cause that the uploaded firmware file may not be correct..
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Aug 26, 2012
I am trying to create a backup of my 2620 router so I can use for GNS3. I have only configured the IP address on my FastEthernet port. Having many issues with no connection to my pc, finally I found that you must enable the interface 'no shutdown'. Now I have a valid connection
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Jun 20, 2010
I have configured 887 Router. ADSL with 3g(backup) everything is fine but the routing seems not working.interface ATM0 backup delay 120 60 backup interface Cellular0 no ip address no atm ilmi-keepalive dsl bitswap both [code] Tha nat is working but the routing seems not working. When I run remove "ip route 0.0.0.0 0.0.0.0 Dialer0" command I can connect internet. but it did not work. When I disconnect adsl line and run sh route, I see dialer 0 is the default route for 0.0.0.0. I need to configure backup route for 0.0.0.0 network
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Nov 9, 2011
I have an iPad that uses an app to control the house. I create a dyndns url to maintain connection to the house from the outside world. When I bring the iPad onto the internal network, the url routing fails. Externally, it works fine. I think it's some sort of protection that is configured within the router.
Proper configuration to allow the URL to kind of loop back onto itself, when it's in the house? Where, in the configuration, this is set to prevent this kind of routing?
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Mar 18, 2013
We've recently sold and implemented a wireless solution using a WLC, WCS and 1140 APs.
There is a HQ site where the WLC, WCS, DNS and DHCP reside. Active Directory and a RADIUS server are also located there. There is then a WAN link to remote sites which sometimes fails. At the remote sites you'll just have a router, switches and the APs. The intention is for the APs to work in lightweight mode, falling back to H-REAP when the WAN link fails.That works fine, but what doesn't work fine is the APs rejoining once the WAN link is restored.
They just don't. Even days later, the APs are still all disassociated from the controller despite the WAN link being up. I've 'hardcoded' the controller IP into the AP configuration, while the APs initally get the IP for the WLC from DHCP using Option 43. Despite the APs therefore knowing where WLC is, once they're disassociated from it (WAN link failed) they will not reassociate by themselves. Restarting the APs is the only way to get them to rejoin.
With hundreds of APs and in excess of 30 switches, restarting all the APs each time the WAN link fails is pretty ridiculous.
I've logged a TAC case and gone through the whole rigmarole, this is an offical bug and Cisco have informed us that it's due to be fixed sometime early 2011, but besides that there is nothing they can do. So to be perfectly clear, Cisco have sold and shipped a product that doesn't work as advertised and they best they can offer us is a promise to fix it soon. I'm pretty shocked, I've never had this experience with Cisco in the past.
Ok, so now I've got to come up with a decent workaround until we get a firmware release where this is fixed. I'm looking at using CNA to automate the reloading of all the switches, I guess when an outage is reported I'll just write a procedure for the client to follow to reload all their APs.
A script that can query the associated status of APs and reload them as needed, automatically, would be pretty cool. Perhaps that can be done with SNMP.
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Feb 21, 2013
They changed my homepage & I really don't like it! Want my original page back! This just happened today...2/21/13
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Feb 9, 2011
I installed google toolbar for taskbar but I want yahoo for my homepage
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Mar 24, 2011
I have a primary internet connection which is broadband and the secondary connection as a Reliance data card in my laptop. I have noticed that which ever connection,connects the last, becomes the primary connection and if the primary ever goes out, the second connection takes over and gives me continuous connectivity.Is it possible to configure and specify which connection I want to be primary regardless of which connection connects last etc?
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