Cisco WAN :: HWIC 3G Drop Internet Traffic Thorough Backup Link
Jun 12, 2012
My requirment is to drop the Internet traffic once the Cisco HWIC 3G backup link will become active(attached) .Because I should allow only Business Critical Data allow through that and others should drop. Here are the config I used. In here I used a standard access list to generate intersting traffic which allow all the traffic traverse through the backup link.Can I drop the packets to the proxy (192.168.1.100) using this access list and allow other traffic.access-list 1 deny 192.168.1.100access-list 1 permit anydialer-list 1 protocol ip list 1.Is this the proper way I should follow ? Is there any other good method to achieve my requirement ? [code]
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Nov 28, 2011
Basically we are having a Multicast setup. both A and B offices are being connected with STM-4 (622 Mbps) with IGP as OSPF. As of now everything is working well with this setup and no complaint .
Now since Primary link bandwidth is touching upto 622 Mbps we are planning to send some traffic to backup STM-4 link .
1) To send some unimportant (Traffic) Source IPs ( say 10.20.1.1 to 25 ) to backup link what would be best way to achieve it. Is it possible policy based routing ? does multicast support pbr?
2) When primary STM gets down and entire traffic shift to backup STM these IPs ( 10.20.1.1 to 25) should be given low priority on the backup link or traffic from these ips can be terminated.
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Jul 3, 2011
I'm trying to backup my primary WAN with secondary backup connection - 3G WAN through Cellular 0/0/0.Point is that I need to track some external IP address on my primary interface, for examle 8.8.8.8. If it is not reacheable, then router brings up backup connection - 3G. This can be done by using dialer-watcher.Simple.But unfortunately my primary WAN interface is an FastEthernet, which is the coonected to a switch, switch to WAN . There is no dialer-watch commands on it. Thats sad .
One more time :
WAN -> SWITCH -> ROUTER(WITH 3G HWIC and Fa 0/0 connected to switch).
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Apr 6, 2011
I have many HWIC-3G-HSPA cards as backup connections and I need to keep them up for monitoring purposes. Being a backup connection they get little interesting traffic for them to spring into life but they are the source interface for a tunnel interface (we use DMVPN). The interface still insists on going down. I have even added static routes to the DMVPN hubs over the cellular interface and they still go down. What command do I enter to always keep them up? I had originally used 'dialer idle-timeout 0' and then removed it altogether which the same results. Below is what I have now.
interface Cellular0/1/0 ip address negotiated ip nat outside ip virtual-reassembly in encapsulation ppp dialer in-band dialer string gsmscript dialer-group 1 async mode interactive ppp chap hostname //username// ppp chap password //password//
ppp ipcp dns request
access-list 1 permit anydialer-list 1 protocol ip list 1
line 0/1/0 exec-timeout 0 0 script dialer gsmscript modem InOut no exec transport input all transport output all rxspeed 7200000 txspeed 5760000
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Oct 18, 2011
The customer has an existing ISDN30 - 8 channels backup circuit what was originally terminated to a C2611XM Now they required to replace this old router with a new one.The old router build:
CISCO2611XM - CISCO Dual 10/100 Ethernet Router w/ Cisco IOS IP, 32F/ 128D
CAB-E1-PRI - CISCO E1- ISDN PRI Cable, 10 Feet
NM-1CE1B - CISCO ^1-Port Channelized E1/ISDN-PRI Balanced Network Module
CAB-5-XOVER-3M - COMSTOR Crossover Cable RJ45-RJ45 - 3
The new what we would provide:
1 x CISCO2911/K9 - Cisco 2911 w/3 GE,4 EHWIC,2 DSP,1 SM,256MB CF,512MB DRAM,IPB 1 1 x S29UK9-15104M - Cisco 2901-2921 IOS UNIVERSAL 1 1 x HWIC-1CE1T1-PRI - 1 port channelized T1/E1 and PRI HWIC 1 1 x CAB-ACU - AC Power Cord (UK), C13, BS 1363, 2.5m 1 1 x CAB-E1-RJ45BNC - E1 Cable RJ45 to Dual BNC (Unbalanced) 1 Included: PWR-2911-AC Cisco 2911 AC Power Supply ISR-CCP-EXP - Cisco Config Pro Express on Router Flash 1 MEM-2900-512MB-DEF - 512MB DRAM for Cisco 2901-2921 ISR (Default) 1 MEM-CF-256MB - 256MB Compact Flash for Cisco 1900, 2900, 3900 ISR 1 SL-29-IPB-K9 - IP Base License for Cisco 2901-2951 1
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Dec 14, 2012
i have two internet links each of which from different ISP and different real ip addresses.Want to make the second backup internet work for Internal and external (AnyConnect) users.
my question: is that applicable to register single A record with different real ip addresses? and also is the AnyConnect method the best solution for them?
note: i have single firewall 5520 behind the cable modems.
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Nov 3, 2011
I have a client that has an ASA 5520 that has two internet connections, FIOS and Comcast. The ASA is configured to failover from the FIOS to the Comcast if the FIOS fails. This works perfectly fine. However, I was wondering if VPN and other inbound traffic will come into the secondary connection when it is active. I think VPN will work inbound when the FIOS connection fails, but I am not sure about the other inbound connections.
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May 22, 2012
I having a basic query in troubleshooting E1 link , here im facing packet drop in the link and we are testing by providing local loop and remote loop from the CSU/DSU at local point and at remote point . I have tried ping test while the loop is given at local point and remote point ie i have pinged my local serial interface IP address (eg 10.0.0.1 -local & 10.0.0.2 -remote ) in Remote Loop i could see no errors and drops and also the traffic on the interface output and input is the same(eg input rate 1000bps and output rate 1000bps) .My query is that when i am pinging the local interface IP does the icmp packet travels till the loop point and comes to the same interface(like a boomerang) .
ICMP packet
->->->->->->->->->->->->->->->
R1 Local CSU/DSU | Remote CSU/DSU (remote loop given )
O-----------O------------------------------O |--------------------------------------O R2
<-<-<-<-<-<-<-<-<-<-<-<-<-<-<-|
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Oct 9, 2012
I have a Cisco 527w which we are wanting to deploy to our remote sites however i've found a bug. We use ADSL with an IPsec tunnel as primary and 3G APN for failover . When the ADSL goes down the route via the IPSec tunnel remains and i am unable to route the traffic via the APN backup without disabling the VPN tunnel .
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Feb 19, 2012
is there any known issue in configuring multilink ppp using an old WIC-1T and a newer HWIC-1T on the same Cisco 1841 router ?
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Apr 20, 2011
I had a D-link DSL-G604T router which recently had begun to drop connections, so I decided it was time for an upgrade. I bought a D-link DIR-615 and followed the instructions on the CD, but no internet connection. After several hours of hair pulling I came accross a solution; If I connected the internet port on the DIR-615 to one of the ethernet ports on the DSL-G604T using an ethernet cable I could then connect to the internet.However this defeats the point of having a new router if I have to use the old one to connect to the internet.Is there a way to configure the DIR-615 so that is works properly?
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Dec 30, 2010
I recently upgraded my network because my DIR-655 started to drop connections. My new routers (a Netgear ProSafe VPN Firewall SRXN3205) is working great, but I'd like to re-purpose my D-Link as a wireless bridge.
According to Netgear support, I need to link my DIR-655 to another access point connected to the network over wired Ethernet. No problem there; I have a DAP-1522 connected via Ethernet on the floor directly below the location of the DIR-655. I was under the impression that although the signal was going through the floor, the physical distance to between the two devices would be sufficient to make the connection. No joy. I use the push-to-connect buttons on the two devices, but they do not connect. Is the floor the only issue? I do have an ANT-24 antenna extension for the DIR-655 router -- would that make any difference. As I say, the physical distance between the two devices is less than 10 feet.
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Aug 12, 2011
I have been using the subject Wireless Router for more than 2 years. Most of the time it worked OK but lately it has been giving issues. [code] Due to a recent power outage, I had to reset the setting on the Dlink router. One of the issue is after resetting the Internet options and rebooting the router when I go back to the system screen, both the Release and Renew buttons are greyed out.I have tried to reboot the router as well as cable modem without any success. The Cable Modem is Motorola SB5120.
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Jun 3, 2013
I have a module of HWIC-4ESW installed into Cisco 2811 router where 3 WAN link is terminited. Suddently WAN links stopped working from last night. I have performed shutdown and no shutdown in the interface but still the the WAN link was not working. After performing a reboot the WAN link started working. No error logs were generated while the WAN link was down.
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Jul 23, 2011
I have used DIR-655 (HW:B1 FIRM: 2.00NA) with Motorola SB6120 for sometime without any incidents. My dl speed usually is around 26mbps. Lately, it happens twice that the dl speed drop to 10mbps. If I connect the SB6120 directly to my PC, the dl speed is 30mbps. Is my DIR-655 dead?
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Jan 24, 2011
This is not a problem I would not have noticed save for starting to use Skype. Every 10 to 20 minutes, my internet drops out. This occurs whether my laptop is connected via LAN cable or wirelessly to the router. Skype drops down to one bar, then drops out, and tries repeatedly to redial, sometimes achieving a very scratchy voice call for several seconds before dropping out again. If you redial in 2 minutes, it is fine and achieves medium quality video calls. Whilst skype is floundering around, I can sometimes browse the internet, but sometimes it is offline. I have phoned my ISP and they claim no problems on their end. Beyond that I really don't know where to start on looking for the problem.
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Mar 13, 2011
I have 2 ASA 5505 Firewall, I Configured Site 2 Site VPN no both the fitrewall, as i have a dual ISP, i am able to create the tunnel with primary but once my primary is down i am not able to create the tunnel with back up ISP. During the troobleshoothing by typing Show isakmp sa and Show ipsec sa, i can see my tunnel is up, but not able to decap the packets.
As it will look like
#pkts encaps: 15, #pkts encrypt: 15, #pkts digest: 15 #pkts decaps: 0, #pkts decrypt: 0, #pkts verify: 0 #pkts compressed: 0, #pkts decompressed: 0 #pkts not compressed: 15, #pkts comp failed: 0, #pkts decomp failed: 0 #pre-frag successes: 0, #pre-frag failures: 0, #fragments created: 0 #PMTUs sent: 0, #PMTUs rcvd: 0, #decapsulated frgs needing reassembly: 0 #send errors: 0, #recv errors: 0
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Feb 3, 2013
I have a Cisco RV120W router with 1.0.4.10 firmware. The router drop the internet connections, freeze/timeout in admin interface randomly. How can I determine that this is the router's fault, or if it's the switch / internet access is causing it?
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Jan 15, 2013
My internet connection seems to drop offline randomely while surfing the net. It basically results in yahoo or google freezing for 20-60 seconds before unfreezing and running flawlessly again. I seen a previous post that requested the individual hit start, run, cmd, and enter tracert google.com.
Windows 7 Professional
Service Pack 1
Intel Core 2 Duo CPU E8400 @ 3.00GHz
[Code].....
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Mar 31, 2012
The problem is I can't access the router from the internet. I am also an ocean away from the site. I have an ugly hack set up where I access an inside PC with Teamviewer and then puTTy to the router, but it is slow, ugly, and doesn't fix my problem. I need to be able to set up internet accessible servers at this location for VOIP, VPN, and REAL remote access.Everything else works fine. Connection is stable. Speed is kinda ******, but that's not so important.
First off some specs:Cisco 2801c2801-ipvoicek9-mz.124-24.T1.binhwic-3g-cdma-sSprint 3G data plan
Ok, I have set up the previous equipment as a router for a branch office where 3G access is the only available internet access.I have had the excruciating experience of talking with Sprint Tech Support, and would rather shoot myself in the foot than do so again.
Here is what they told me: "They block ports, but they can't tell me which ones."Here is relevant info I have been able to gather.The IP connection the ISP gives us is not NATTED. That is the address at wimi.com and show int dialer 0 is the same one.Most forums say Sprint only blocks port 80.Zenmap (nmap for windows) says the router has NO open ports but DOES exist.Router does not respond to pingsCan't SSH into router from internetCan't access a test local server with port 8080 or 8081 open with the correct nat statement in Cisco routerNo filtering access-list for testing The config should be just fine as a base config for using hwic-3g-cdma-s as the main internet access interface for a router. Everything works fine aside from the lack of remote access.
So in my head it has to be one of 3 problems.
1. The card is doing some weird stuff to incoming requests
2. Sprint is blocking WAN requests on port 22, 2200, 8080, and 8081 and pings (tested). Maybe they block all WAN requests?
3. There is something wrong with my config.
why I can't remote access into my router or things to try with the config?
Below are some config pastes:
chat-script cdma "" "ATDT#777" TIMEOUT 60 "CONNECT"
!
ip ssh authentication-retries 2
ip ssh port 2200 rotary 1
ip ssh version 2
[code]....
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Jan 8, 2013
A lot of times our users will have a bad connection from where they are connecting in from. Their Internet connection will drop and the VPN Client disconnects but on our Cisco ASA5520, the connection will still be connected and when their Internet connections comes back, they are not able to connect as the session is still up on the 5520. Is there a way to make the connection clear quicker? I have IKE Keepalives on the RA Profile (Confidence 300 seconds, Retry Interval 2 seconds) but it seems to keep the session longer than that. Is there anything I can do to make the connection clear quicker?
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Aug 17, 2012
Ok, I have a huge problem with my wireless connection. It will constantly lose connection to the internet from my PC, IPod, Laptop etc. What will happen is a yellow warning triangle appears which tells me I've lost internet access. I have had the modem checked and replaced by the ISP with no success so it's likely that it's not a problem on their end. I've changed the wireless channel to move it away from my neighbours with no success.
Here is a copy of my ipconfig /all when the connection dropped out:
C:UsersKevin>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : Kevin-PC
[Code]......
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May 3, 2011
I periodically have my ISP's DNS go out. I actually prefer to use the default DNS they provide (and not hard-code it), but still, it occasionally goes-out for an hour from time-to-time.Is there a way on the DIR-825 to add a "backup" DNS (3rd DNS), that is fed to the PeeCees via DHCP, in addition to the 2 my ISP provides?
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Sep 13, 2011
I’ve bought a router, and a wireless antenna for my laptop, since I have a high-speed internet outlet in the living room, but I use my laptop in the kitchen (I don’t have any other pc). So I’ve configured my Linksys WRT120N router in the living room, unplugged the ethernet cable from my laptop, plugged the wireless antenna in the kitchen, and everything was working fine with the wireless network. After about one month I was not able anymore to enter my network with the security key, there was actually no prompt for the security key, just a message “Cannot connect to the network”. I then had to reconfigure the router, going to the router IP address (I used the default settings, a blank for username, and “admin” as a password, as per instructions), use another network name, security key and password, and was able to start again a wireless network with the wireless antenna as before. This problem represented other 3 times (in the last 3 months), and was working fine, but now I cannot reconfigure the router anymore, since the IP address doesn’t accept BLANK/ADMIN anymore, and if I go ahead and reconfigure the router a message says I have to use the default settings in the IP address…
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Feb 18, 2011
want to connect three networks with each other via two media one ethernet/fiber optic and other through wireless as backup link.how can i connect these three networks so that if my ethernet/ fiber optic connection fails than computer on networks can still communcate via wireless link (i mean if ethernet/fiber optic fails then wireless link should automatically be established/
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Jan 8, 2012
I purchased a WRT110 router about a 18 months ago. I am currently experiencing an issue where the wireless connection to the router will become randomly erratic. My internet connection will slow down or drop entirely. Sometimes my laptop will disconnect from the router entirely. I don't think it's the wireless card in my laptop since I have seen the issue on my desktop using a wireless N USB adapter, my Nintendo Wii, and my wife's Macbook, all within the last week.
I am positive it is the router. I set up a coninuous ping command to the router accross my laptop's wireless using "ping -t 192.168.2.1" in a command prompt. Most of the time, the round trip is 1 to 3 ms or <1 ms. When I am experiencing the connection issues, the ping time will rise significantly, sometimes going as high as 2000 - 3000 ms. About 25% of time, the ping will just time out. When this starts happening, the only way I have been able to restore proper connectivity is to manually reboot the router. The issue eventually re-appears. Sometimes in a few days, sometimes in as little as five minutes. I've gone so far as to restore the router to factory defaults and reconfigure it, but that has not made a difference.
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Nov 27, 2012
I am testing limit bandwith using my ASA 8.2, i am trying to limit internet access for certains users , i order to save Bandwith for the important things but i can´t get any limitation
My configuration is the following, the acces list is just for my pc in order to test, and the service policy is applied to outside interface (called internet in my case) for incoming traffic
access-list Internet_mpc_1 extended permit ip host 172.16.127.70 any class-map Internet-class-TEST match access-list Internet_mpc_1 policy-map Internet-policy-web class Internet-class-TEST police output 1024000 1500
service-policy Internet-policy-web interface Internet
With show service policy i can´t see any activity on the policy , but if i do a similar configuration for inside interface outgoing traffic i can see packets allowed and dropped
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Apr 29, 2012
I have an ASA 5520 with the below config
Gi0/0: outside (Internet)
Gi0/1: inside (Internal users)
Gi0/2: DMZ (web servers, ftp, Mail etc..)
I have a SMTP relay deployed on the DMZ for mailing. I have also a mail servers installed in the internal lan,
I want to allow trafic from dmz to reach internal lan, and i want normally also allow stmp relay from dmz to reach Internet.
How can i block trafic from DMZ to reach Internal Lan (instead of smtp) if the to allow trafic from dmz to internet i must put ANY in the policy?
For allowing trafic from DMZ to reach Internet, the policy must be DMZ -----> ANY ----->Services., this policy means DMZ can implicity reach Internal Lan?
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Oct 11, 2012
I have experienced some strange behavior of WiFi connection using WRT320N router. ISP provides me the internet in 2 modes (day and night). During day mode max speed is 24 Mb/s and during night 60 MB/s. Modem ADSL (Cisco EPC3010) is connected to Linksys WRT320N and on router is configured WiFi.Now issue. In the day mode everything is perfect. Cable connection gives me 24 MB/s and WiFi connection around 22 MB/s so not so bad. However when my internet speeds up to 60 Mb/s (cable connection via router gives exactly 60), WiFi connection instead speed up as well, just drop to max 17 Mb/s. I have tied several different settings on the router including changes in WiFi band, channel width, different channels (now channel is setup to 1 which is maybe not totally free but no so occupied) and others but unfortunately without significant improvement (in many cases connection just slowed down more).
And some details:
Wireless configuration (now)
Band: 2.4GHz
Mode: Wireless-N only
Channel Width: Auto (20MHz or 40 MHz)
Channel: 1
Wireless adaptor: Intel Centrino Advanced-N 6230 (I know that this doesn’t mean anything but Win7 shows that connection is established with speed 144MB/s)Router firmware and WiFi card updated to the newest version.
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May 15, 2012
We have 6 sites which are connected through E1 links.All sites connected from HQs.
Site A is HQs.
Sited B, C, D, E, and F are Branches.
Site A is directly connected with site B, C, D and E.
Site D is connected with Site F.
Now we have another redundant E1 link for site C and Site F.we are using Static Routes.i have configured Qualified-next-hope on Juniper Router but i am unable to configure IP SLA on Site C Cisco 2951 with IOS 15.0 router.is there another solution for my scenario plz share with me for Redundant Link.
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Jan 28, 2013
I'm working on setting up a backup link for our ASA 5505 and I've followed these directions: [URL]
The backup ISP gives us a dynamic address, however, when I enable the backup ISP's interface on the ASA, my vpn tunnels drop. As soon as I disable the backup interface, the tunnels come back up. I'm attempting to configure this across one of these tunnels, so obviously this is an issue, as is the fact that other people need the tunnels as well. I'm not sure what I did to make this happen, but I've been over the config many times and can't see anything different from the instructions in the link above.
I thought it might be trying to route traffic across the backup interface, but my primary interface is tracked and has SLA running on it, so I would assume it wouldn't roll over onto the backup interface.
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Jul 11, 2012
I've got a 881 working with a 3G Card. Even the Cisco 7965 phone is working well off it. Looking for good doc for configuring the 3G interface as a backup link to Comcast?
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Jan 18, 2011
I have two 3750 switch.switch A(main) and switch B is connected by OFC but i have another wireless link for backup.Now if OFC goes down then i manually connect wireless link with switch B for this reasons i am faceing a lot of problem. I want without any changing of cable if my primary link goes down then my backup link automaticaly goes up and vice versa .
Switch-A port gi1/0/9 and Switch-B port gi1/0/9 is connect by OFC Switch-A port gi1/0/8 and Switch-B port gi1/0/8 is connect by Wireless link (backup) i attach my network diagram kindly find the attachment file.
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