Cisco Infrastructure :: AT Command Set On 2911 PVDM2 Modem?
Oct 8, 2012
I'm having issues trying to dial into the network via ISDN. Setup is
1. Users dial in via ISDN PRI/BRI or POTS.
2. Users using PRI/BRI don't have a problem
3. Users using the POTS modem way are getting disconnected after approx 5 seconds
4. Debug shows a disconnect cause '0xF Loss of DTR'
5. The running config is exactly the same as that of a working 3725 (out of support that's why we're moving to 2911)
6. Only difference is in the AT Command set modem settings where registry S25 is set to 5 on the 2911 but 0 on the 3725
Problem I have is that when I change the registry setting on the PVDM it is accepted, but as soon as I disconnect my reverse telnet session from the line, it reverts back to the default of 5. How do I save the registry S25 setting so that it won't revert back?
I have changed the settings then carried out a at&w - which made no difference. I have also carried out the at&y0 after changing the settings but again, made no difference. I can't find anything on this page Link that shows how to save the settings (but then again, it could be I can't see the wood for the trees).
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Jun 21, 2011
Suppose a broadcasted IP packet reaches one of the integrated RJ-45 ports on a 2911 ISR G2, will it be possible to configure the router so that the other integrated RJ-45 ports, ESM/EHWIC modules installed on the router, as well as the MGF also recieve the packet? Technically, the router should act similar to a switch with the SRE behaving similar to a seperate machine connected via the MGF and other external machine connected to the ports of the router to recieve the broadcasted packet.
Also, if SNMP traps were generated from the router,Will it be possible to send the traps from the router via the MGF to the SRE installed on the router?
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Oct 31, 2011
I have a brand new 2911-TS running 2900-universalk9-mz.SPA.151-4.M1. I have connected the async lines to several devices including ASA5510's, 7206V XR and 6506es. I'm experiencing issues where I go to connect to the console port of one of my devices and my access is denied as if the port was already in a session. I clear the line and try again, same response. If I swap that line with a known functioning line I see lines and lines of output as if the device I was trying to connect to was constantly sending data to the console port. I've not had this problem on any of my older Cisco terminal servers. I opened a TAC case and they had me RMA the HWIC module. I cannot find any information about setting some sort of buffer limit or session timeout. I feel this is a configuration, or mis-configuration issue.
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May 14, 2012
I am working in GULF and skype and other free voice services are blocked. people sometimes use vpn(ivacy) on iphone in the office and it dont work while if they use vpn at there home it works. At office we have only 2911 router and no firewal and simple NAT is done on ADSL interface.what command should be entered to bypass l2tp and pptp.
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Aug 17, 2011
My mechanical engineer needs detailed measurements for the hole patterns on the sides of the Cisco 2911. Where I could find this?
I've searched and read the installation docs, which shows pictures of the units. Although useful, they does not show exact measurements, angles, and hole diameters.
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Jul 30, 2003
Is there any way to see on what ports a Cisco 5510router is listening to just like a "netstat -an" on UNIX would do. I could easily do a portscan to give me this report but would prefer having the information through a show command.
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Oct 4, 2005
I used to be able to set an uplink port with the interface command "port network" so that it would not learn all the mac addresses that are being flooded down to the switch. It does not seem to be there on the 2950's or 35XX switches.
Where did it go and what is replacing it? Interface is a Trunk port as well.
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Sep 26, 2012
Transitioning from 3825 to 3945 (OS is 15.0(1r)M13 c3900-universalk9-mz.SPA.151-4.m4). Turning on FDL on the 3825 was easy but the same command on the 3945 doesn't work.
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Mar 7, 2012
We have a Cisco 3825 router which does not work well with a DSL modem(ISP provided). I have configured the Gi0/0 port of the router to plug into this DSL modem but it does not ping to the ISP gateway. If we do a shut/no shut on the interface then it work fine for about 30 secs. Sometimes even for 1 hr. Then the packets drop and we cannot pass any traffic through this interface.Now, if the ISP connection is terminated on a computer it works fine. It works fine without dropping any packet. I have tried various options like using a straight/cross cable. I have tried to configure the interface negotiation for 100/full, 100/half, auto/auto and almost all the options. I have also tried to interconnect the devices using a L2 device like a HUB. Nothing works.
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Aug 29, 2012
I have a CAB-OCT-V35-FC cable in my Cisco 7200 router and not all of them are utilized. I have to connect another site with a point to point leased line and I am planning to use one of the ports in my Cisco 7200 router which is using the CAB-OCT-V35-FC cable. My problem is both the cable end and the modem is V.35 female connector and both are DCE. I need to build a crossover cable of V.35 male to male which will connect the Cisco 7200 router and the modem.
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May 15, 2011
I try to change modem speed from 1200 to 19200 on aux 0 interface.But I can't save the settings using "write memory" In show running-config, I can see modem speed successfully changed.
Cisco3825's OS information is here. c3825-spservicesk9-mz.124-25b.bin
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Dec 1, 2004
I have a cisco 2610 router connected to satellite modem (CDM-600). Cisco has NM-2W module with WIC-2T card, one port of this card is connected to modem via CAB-SS-530MT=, chassis WIC slot is filled with 2MFT-E1. Everything works fine for several hours. Then serial interface (connected to modem) goes down, and never comes up. I see following messages in the log. [code]
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Sep 26, 2011
Using 3G USB modem on a Cisco router 2911 can you establish site to site VPN?
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Dec 25, 2011
I am having one router CISCO2911/K9 (Cisco 2911 w/3 GE,4 EHWIC,2 DSP,1 SM,256MB CF,512MB DRAM,IPB). But now my management asking me to upgrade this router as CISCO2911-SEC/K9.
What will be the BOM for this up gradation.
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Aug 23, 2011
My Motorola SBG901 Modem/Router combo has stopped connecting to the internet. I have done all the troubleshooting with Comcast and with Motorola and it is out of warranty, so I will have to purchase a new one.In the mean time, I wanted to use it only as a wireless router connected to my Scientific Atlanta DPC2100R2 modem. Is there anyway to do this? Is there a way to disable the modem in the SBG901? Simply connecting with the ethernet cords has not worked. I connected the DPC2100 to the SBG901 via ethernet cord. My computer was able to pick up a wireless connection but there is no cable connection.
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Jan 16, 2013
I want to connect my tata photon device to my bsnl wifi modem via a usb portavailable on the bsnl modem. This is to provide a wifi network that i can use to surf the net on my phone.
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Feb 28, 2013
i just bought a Netgear WNDR4000 router due to troubles with my current modem/router combo (D-Link DSL2730-B). The router doesnt have in built modem functionality obviously so I need to set up the modem/router as a dedicated modem.Also should I use the current modem/router as the dedicated modem or an older model i own (I think its a DSL 502T)? Because the current one often drops the internet connection. Don't know if its a problem with the modem functionality or something else. Will the older one serve better since i didn't have any problems with that one or will it be outdated? I only upgraded due it not having wireless capabilities. Otherwise it's fine.Or will I be even better off buying a dedicated modem? I really don't want to spend more money but if this is a far better alternative I guess i will.
EDIT: Ok so found out that I have to put the modem/router in bridge mode in order for this to be possible. However, looking up how to do this lead me to a dead end because i need to fill in some fields that i have no idea how to interpret.
VPI:
VCI: These 2 already came with presets. Should I just leave them?
Select DSL Link Type (EoA is for PPPoE, IPoE, and Bridge): Choices of EoA PPPoA and IPoA
Encapsulation Mode: Choices of LLC/SNAP-BRIDGING and VC/MUX
Service Category: UBR without PCR, UBR with PCR, CBR, Non Realtime VBR, Realtime VBR
[code]...
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Feb 7, 2012
I have a cable modem installed to my property but want to use my modem/router to go wireless. The proble is my cable modem output is a RJ45 and the router input is RJ11.
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Jul 5, 2012
my computer randomly disconnects from my modem and will not reconnect until I restart my computer (do not need to restart modem). When I check the modem, it always is still running. The lights on the modem do the exact same thing whether the internet is working or not. The disconnection is entirely random. Sometimes it will disconnect immediately, sometimes it will take up to a few hours. I do not have a router hooked up to the modem, and the only other thing the modem is hooked up to is our tv. But even when the tv box is off, we still randomly disconnect.
On the previous forum thread that I read, some of the comments asked for the person to paste their entire ipconfig and their entire ping list from command prompt I will post that below: [code] Could it possibly be a virus? I am currently performing a virus scan using Microsoft Security Essentials. I will report the results of that tomorrow, seeing that it will take several (up to 10) hours to finish and it is nearly midnight of me posting this.I should also note that whenever I unplug my Ethernet cord it gives me a symbol that looks like this other than the regular disconnect with the red "X" over the wire symbol.
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Jan 28, 2011
I am looking at this doc to use an ASA + 2911 to do Policy Based Routing with multiple ISPs.From the linked doc, under the PBR scenario, what should the IP addresses be for the routers connection to the ISPs? It isnt labeled.
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Dec 21, 2011
What specific commands are needed to configure qos on a router?
Two sites:
Cisco 2911 (site 1 ) Cisco 2911 (Site 2)
Data Vlan
Management Vlan
I want to configure QOS on Site 1 where the Data Vlan traffic is always marked higher than the management Vlan coming from Site 1.
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Dec 27, 2012
I have one router 2911 with the following image c2900-universalk9-mz.SPA.151-4.M4.bin I have two IPS on this routers and I tried to configure the IP SLA on this and I`m not able to do it and I don´t know why. I can configure almost everything but not the IP SLA command.this is the config:
track 10 ip sla 1 reachability
delay down 10 up 1
!
track 20 ip sla 2 reachability
delay down 10 up 1
!
[code]....
What I need to do in this case? or why cannot configure the IP SLA?
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Oct 13, 2011
I have a cisco 2911 router that is located in my head office LAN and I use this router to connect to my branch networks. I want to configure IP SLA Monitor on this router to track my WAN Links but it does not support the command IP SLA Monitor. My IOS VERSION is c2900-universalk9-mz.SPA.151-2.T1.bin. how I can configure IP SLA on my router.
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Feb 12, 2013
I have a router Cisco 2911 with two possible Wan interfaces out and a backup configuration using IP SLA. When the Primary Interface goes down the traffic is automatically rerouted through the Backup Interface, but the problem I have is that when the traffic is going through the Backup Interface (because the Primary is down) if the Backup Interface also goes down, if the Primary goes up, the traffic is not automatically rerouted to the Primary Interface. And it looks to me like it keeps trying to goes out the Backup Interface and cannot see that the Primary is down. I guess that the pings are going out the backup Interface and as it is down the router doen't receive any anwer to the ping and doesn't change to the Primary.
The main configuration related to the IP SLA is this:
!
track 1 ip sla 1 reachability
!
interface GigabitEthernet0/0
description backup Interface
ip address 175.xx.xx.10 255.255.255.252
ip nat outside
[Code]....
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Aug 5, 2012
We have 2911 with HWIC-4ESW. System image file is "flash0:c2900-universalk9-mz.SPA.152-1.T1.bin"_2911#sh inv NAME: "CISCO2911/K9 chassis", DESCR: "CISCO2911/K9 chassis" PID: CISCO2911/K9 , VID: V05 , SN: FGL16011005
[Code]....
The problem was that HWIC-4ESW no longer pass traffic although showing that the interfaces are up rebooting the router solved the problem. What IOS is more stable and not subject to this problem?
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Mar 2, 2012
Recently i attempted to build a LAN 2 LAN VPN tunnel from an Asa to a 2911 running zone based firewall. This was a standard IPSec psk tunnel nothing fancy. I got the tunnel to establish but i could only get traffic to encap on the Asa side and decap on the 2911 side. I couldn't get return traffic.I followed this doc here for classic IPSec in the last example. URL
And I am sure the Asa is right I built a ton of those but I am new to zfw. I did not see anything about a NAT exempt rule. But since everything uses real IPs instead of NAT I wasnt sure and I could not find any info. Do I need to do NAT exempt? If so do you use a route map on the end of you NAT overload config line like in the past?
Also I have a zone-pair to "self" and I was not sure if I needed anything there to be able to ping the inside interface of the 2911 when the tunnel is up from the remote end.
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Mar 26, 2013
I have to build HA environment, at the moment we have only one R1 and WAN1 but company wants to buy R2 + WAN2 and have HA between the routers, in case R1 or WAN1 goes down the other router will take over.
What would be standard methodology nowadays to do that - does HSRP will do what I need or it is better do some other way?
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Jan 6, 2013
I'm switching to cable internet service instead of DSL. My Netgear router will not work with my cable modem; but it works like a charm with my DSL modem. Is it a problem with the router setup? Good thing I still have the DSL service.
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Mar 11, 2013
What are the max number of T1's that can be bundled on a 2911 router?
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Apr 19, 2011
I need a interface v.35 on 2911 router, but it does not have WIC slot, it has EHWIC. Could some one told me if there are a card with V.35 interface that I can install in this model of router?
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Apr 26, 2012
I have the following setup where the Cisco ME 3400 provided by the ISP.
My Cisco 2911 is configured as below:
CORE_Router#sh run
Building configuration...
Current configuration : 6075 bytes
[Code].....
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Aug 1, 2012
I have a problem I am running into... I replaced a 2621 with a 2911. The 2911 has three interfaces and I need to use all of them... Description:
gige0/0 dhcp static IP from ISP, public IP, they assign me 4 more usable public IPs gige0/1 broken into four VLANS, 108, 109, 120, 127, ip nat on 109 for them to get to the internet, and a static translation on 127 for the phone system to get to the internet gige0/2 assigned another public IP. A tenent has a linksys router on this interface, they want a public IP.
The problem is that this setup worked, but when we moved to the 2911, some nat translations are failing, and we would like to figure out how to minimize the number of public IPs we use (right now it is three + the static assigned dhcp). The nat that is not working is the nats to the 2001-3001 range. I am not sure why it is failing, but the router seems to indicate it thinks some of these overlap. This router is also doing a vpn to an asa... that seems to be working fine.
Current config:
Current configuration : 6072 bytes
!
! Last configuration change at 14:31:44 UTC Thu Aug 2 2012
! NVRAM config last updated at 14:31:50 UTC Thu Aug 2 2012
[Code]....
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May 19, 2011
I've got a 2911 with a primary ethernet link to the ISP, with BGP running over it. There's also an ADSL module in it, which will connect into the same ISP AS. how do i configure BGP over the ADSL so that it sits there doing nothing until the primary link fails? Do i need to setup a new instance of BGP with a different AS on the router or can it sit in the same AS as the primary link?
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