Cisco VPN :: Configuring In 1721 Router?
Nov 19, 2012configuring VPN in my cisco 1721 router to connect in vpn client
I have the public IPs.
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Cisco VPN :: Configuring Multiple VPN Tunnels On 1721 Router
Jan 10, 2012I am in the process of configuring two vpn tunnels on one interface of cisco router series 1721. Any link or document with more information?
View 5 Replies View RelatedCisco WAN :: Configuring 1721 For Transparent Bridge Mode?
Jan 1, 2013I'm supposed to configure this 1721 for bridged mode, taking a Level 3 T1 into the serial 0 side and passing it out the f/e 0 side. So, basically that's a T1 to ethernet conversion. I guess this customer is buying a T1 from us but they have to use a different make/model router due to the large hospital requiring that of doctors offices.Encapsulation from Level 3 is ppp static ip address, no password or anything like that.
View 3 Replies View RelatedCisco WAN :: OSPF Not Working In 1721 Router?
Apr 24, 2012I am going to configure ospf on cisco 1721 router but when I give command
conf t
router ospf 116
it does not show (config-router)
I am attaching sh run and sh version herewith attachment
Cisco WAN :: 1721 / Maximum Router CEF Capacity?
May 8, 2012I have a 1721 router with 3 equal routes to 0.0.0.0, using CEF for load balancing with universal load balancing algorithm. It doesn`t NAT, just routing. I wonder which is the maximum capacity of the router, since it should support up to 40000 connections to different destination IP. Is the limit set by the router resources (CPU, memory, ...) or a maximum limit of entries in the table FIB / RIB?
View 7 Replies View RelatedCisco :: Setup A VLAN Interface On A 1721 Router?
Mar 3, 2011Trying to work out if I can setup a VLAN interface on a 1721 router.The only interfaces that are listed are the Ethernet (W1-ENET) and the Fast Ethernet interface.I'm still super new to all of this and learn how to change IOS via rommon and TFTP after realizing I had an IOS too large for the memory?
View 3 Replies View RelatedCisco WAN :: Connecting A 1721 Router To A Larcom Unit?
Apr 20, 2011Monday, I had a cisco 1750 router in place suddenly stop communicating to a Larscom ISP owned unit. Since then I have sent two replacement 1721 routers with WIC-1ENET cards. I have used the original straight thru cable to connect the 10baset port on the Larscom to my E0 on the WIC-1ENET. No link lights on either. I have also tried a known working straight thru cable and a crossover cable. No link lights.
I can take a crossover cable from a pc and ping the E0 port without issue. The ISP is telling me it is an issue with my equipment.
Cisco WAN :: 1721 Router Suddenly Get Reboot With 1 Or 2 Hours Gap?
Jul 13, 2011I have the Cisco series “Cisco 1700” routers operational at my client site, These router suddenly get reboot with 1 or 2 hrs gap. See the below errors which has been captured in router logs:
============================================================
00:00:09: %SYS-5-CONFIG_I: Configured from memory by console
00:00:11: %SYS-5-RESTART: System restarted --
Cisco Internetwork Operating System Software
IOS (tm) C1700 Software (C1700-Y-M), Version 12.2(16.1)T, MAINTENANCE INTERIM S
OFTWARE
TAC Support: [URL]
[code]....
Cisco VPN :: Setup A 1721 Router As Vpn Server Connecting To It
Aug 22, 2011I managed to setup a 1721 router as a vpn server connecting to it using a cisco vpn client however altough I am obtaining an ip address as defined in the dhcp pool I am unable to communicate with both the remote network and also I have no internet as soon as I connect.
View 5 Replies View RelatedCisco VPN :: Setup Tunnel On 1721 Router To Juniper Srx 240?
Mar 27, 2011Is it possible to set up a vpn tunnel on a 1721 router that uses the following ios:
c1700-y7-mz.124-13b.bin
I thought I had read somewhere that tunnels were not supported on the 1700s but wanted to make sure. If they are I would like to know if they are supported in the above ios.
Cisco WAN :: 1721 Router With Ethernet Interface Card
Feb 25, 2011I have cisco 1721 router so I installed an ethernet interface card so when I make show run I found that there is a fast ethernet 0 and ethernet 0 (which I installed) so i wand to make subinfaces of the etheernet 0 but I can't. I tried to make encapsulation dot.1q but it doesn't accept it.
Is Ethernet0 supported to generate subinterfaces?
Cisco Switching/Routing :: 1721 - How To Configure IP To Cross Two Router
Oct 20, 2011Long time since I have had to configure a router and have a small project
Here is what I have in a simple diagram:
PC(static IP)--to--Switch--to--(Ethernet0 int, WIC0)1721 router(FastEthernet0 int, built-in)--to--Switch--to--PC(DHCP)
I need static IP PC to be able to ping the DHCP client. Static IP units 10.1.1.x/16, DHCP clients 10.1.3.x/16.
I have found these overlap and thus give errors and will even shutdown the interface if I enable certain things like routing or bridging.
So I gather I need to change one interface IP range, which would be the DHCP side, I need to stay 10.1.1.x/16 for static side.
Cisco Switching/Routing :: Dot1q Encapsulation On 1721 Router?
Jan 26, 2012enable dot1q encapsulation on two ethernet ports on a 1721 router. I am able to configure it on the built in fastethernet port, but not on any interface provided by a WIC-1ENET or a WIC-4ESW. I have an application that requires two physical ethernet ports that support dot1q encapsulation.
View 4 Replies View RelatedCisco Infrastructure :: Blackout During Configuration Reset 1700 / 1721 Router
Apr 7, 2011i got a big problem, during a configuration reset i got an electrical blackout. I have set the configuration back after a password reset and send the reset prompt. At the restart of the router the blackout take all for 10 seconds out. When i restart the system an connect the router with the hyper terminal i get the following output:
[Code].....
I think the config was lost but how can i restart the router and enter a new one?
Cisco Switching/Routing :: Will The HWIC-3G-CDMA-V Work On 1721 Router
Feb 22, 2012I am working on a backup system for my WAN. Verizon quoted the HWIC-3G-CDMA-V to work with my Cisco 1721 router. I have a bunch on these routers on a shelf and thought I would use them for the 3G network. Looking at the Cisco web site it does not list the 1721 as being able to work with this HWIC. I thought it might not be listed as the 1700 series are End of life. Whether it will work?
View 3 Replies View RelatedCisco Switching/Routing :: Vlan Support For 1721 Modular Router
Jan 15, 2012I would like to know can we configure vlans with cisco 1721 Modular Router? Is it Possible to configure lan environment with the vlans configured in 1721 router without a managed switch?
View 9 Replies View RelatedLinksys Wireless Router :: 1721 - Can't Access Setup Page
Jul 11, 2012My internet is T1 by Verizon. My mom's company Siemens pays for our internet because she works from home as medical tech support on the phone. Okay so the T1 had to be laid out to our house underground I think because where we live, other brands of internet aren't available. The T1 goes from the box outside into our basement and hooks up to a Cisco 1721 modem. From the 1721 the internet goes out to a wireless router that is sitting right next to it. This wireless router is a Linksys WRT160N V2. We have several cables coming out of the WRT160N V2 to go to the first floor for hardwired connections, but one cable goes to the attic and connects to a second wireless router. The second wireless router is a Linksys E2000. We have several cables coming out of the E2000 that go to the 2nd floor to serve as hardwired connections.Okay so let me explain where things went wrong.
After a storm our power went out. Eventually the power came back on, but every now and then our internet would shut off for like half a day then turn right back on, so our internet was getting really really spotty. The [b]AL[/b] light on the Cisco 1721 would come on every time the internet went out. It was so bad that my mom had to get an aircard from verizon to get internet. So after two weeks of spotty service and arguing with verizon trying to get them to come fix the problem, they said try resetting your wireless routers because they might have "bad data" in the lines causing spotty connection. So we reset the wireless routers by holding down the reset buttons on the back. Well.. this reset all of the settings for the routers which Cisco facilitated set up, and now our wireless routers are out of warranty date so they can't set the wireless routers back up. However, we have copies of the online wireless router set up page, so we thought maybe we could just set them up ourselves.Well the problem is... We don't know how to connect to the wireless setup pages.. I read something on the internet about setting up wireless networks and to type 192.168.1.1 into our browser(Mozilla Firefox) and that would bring us to the wireless setup page. But the page does NOT ever come up.
Another way to find the IP address of our wireless routers would be to try going to the cmd and typing in ipconfig and using the Default Gateway IP address for the browser to connect to the setup page but that doesn't work out either.... Right now I unhooked the Linksys WRT160N V2 and hardlined the Cisco 1721 to the Linksys E2000 to a PC on the second floor because I figured it wouldn't work out if we had two wireless routers running at the same time. Currently the browser is taking me no where at all. It just says "Connecting..." but nothing is loading up at all.I tried hardlining from the Cisco 1721 to my mom's laptop, which is her work computer, and I got no response at all. I figured it might just be her work computer that was messing up and not allowing her to hardline into the 1721 so I tried hardlining the Cisco 1721 straight to the PC desktop on the second floor(we have no other laptops other than my mom's work laptop) and nothing went through. Then my dad says the Cisco 1721 has been configured so it doesn't direct connect, meaning that it has to go through a wireless router.
Cisco Switching/Routing :: Will Vrrp Object Tracking Work On 1721 Router
Feb 20, 2013I am using a bunch of Cisco 1721 routers for my T1 lines. We recently purchased Digi cell modems as a backup for the T1. On configuring vrrp to work on both devices I discovered that IOS 12.3(6c) does not support the "vrrp track" feature. After reviewing the Cisco Feature Navigator I could not see an IOS that will support the vrrp object tracking. Is that correct? The routers have T1 WIC's installed. If it does work what is the latest IOS that will work on this end of life product?
View 1 Replies View RelatedCisco Firewall :: How To Setup 1721 For VPN
Aug 23, 2012I have a 1721 router in my home & I want to setup it for firewall/ vpn. Is it recommended to purchase a WIC-1ADSL? What module is recommended for VPN? Is it possible to setup VPN using DSL / Dynamic Ip connection ?I want to explore on Cisco security & I get this advice from a supplier.
View 1 Replies View RelatedCisco WAN :: 1721 Can't Access Internet?
May 13, 2012I can access the LAN environment 10.1.1.X from 20.1.1.X but cannot get out the gateway to the internet? The linksys gatway model is a WRV54G.
View 4 Replies View RelatedCisco : 1721 / 2610 - Old T1 Wic Is Not Interacting To V2
Sep 18, 2011I've got three Cisco 1721's and a 2610, two of the 1721's are 32f's, the other one is a bit older but is still the same model. The two Cisco 1721 32f's have 1-dsu-t1-v2 wics in them, and the older 1721 has a 1-dsu-t1 wic in it. Now no matter how i have configured it the old t1 wic will not talk to the v2 wic. I've tried putting the old wic into a 1721 32f and it doesn't work at all!
What i have working:
router DCE (1721 32f with v2 wic) can talk to router DTE (1721 32f with v2 wic) no problem with this configuration.
Router DCE:
-service-module t1 clock source internal
-service-module t1 data-coding normal
[ code].....
Router DTE:
-service-module t1 clock source line
-service-module t1 data-coding normal
[ code]....
Router OLD (1721 with v2 wic) can talk to router DTE (1721 32f with v2 wic) no problem with same config. What doesn't work: Any router with 1-dsu-t1 (old) wic to router DTE (1721 32f with v2 wic). again same configuration as before, so whats going on that i cant get this to work? Is the old t1 wic not compatible with the new t1 wic?
Cisco WAN :: 1721 / ASA 5520 - VPN Configuration
Oct 9, 2012I am having a problem configuring a VPN connection from a 1721 router to an ASA5520. The router has already been configured, but I have been asked to setup the VPN.I think the issue is because they are using a Loop back interface (which I have never configured for before).
The "sh crypto isakmp sa" command shows:
dst src state conn-id status
5.6.7.8 1.2.3.4 QM_IDLE 4 ACTIVE
where 5.6.7.8 is the ip on Loopback0, 1.2.3.4 is remote peer ip. Pings to the remote network don't work.
Here is the (slightly edited) config of the 1721 :
Current configuration : 3838 bytes!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
[code]......
Cisco WAN :: Possible To Configure 1721 As DNS Proxy?
Mar 15, 2012Can Cisco 1721 act as DNS proxy? If yes, how can I configure it?
View 5 Replies View RelatedCisco WAN :: Apply QoS LLQ To 1721 ADSL Interface
Apr 17, 2007I can not apply the LLQ to ADSL ATM interface. the system take the command with out any error message, but no in the show running config. Any Cisco link can explain this? [code]
View 2 Replies View RelatedCisco WAN :: Direct Connect A 1721 And 1760
Feb 10, 2012I just purchased one of each of the above, both with 1ea WIC 1DSU-T1, and would like to connect them directly to each other in a lab scenario. Do I need to have an RJ48 cable or will an RJ45 work? I have them connected now, but they are not seeing each other. They are connected via S0 on the 1721 and S1/0 on the 1760.
View 5 Replies View RelatedCisco Switching/Routing :: 1721 - Vlan1 Cannot Go To Internet
May 12, 2013router 1721 with one wic-1adsl ,i have adsl conection with irb static ip. the router connect with mannaged switch through a trunk port. the switch has 2 vlans one for the static IPs and the other for private lan. i need the private lan to be able to go to internet. vlan2 can go to internet because it has the same subnet with provider but vlan 1 canot go internet, so how i can make all vlans go internet(the router has only 1 fastethernet port)
View 4 Replies View RelatedCisco WAN :: Can't Connect To Server 1721 As PPTP Client
Sep 26, 2012I tried to configure a 1721 router, but he can't connect in my server. I follow various how-to in the Internet.
View 2 Replies View RelatedCisco Switching/Routing :: 1721 / No Connection To LAN Port
Dec 12, 2011I have a 1721 router installed with both an adsl wic and a 4 port switch wic card. My setup is as follows:
pc connected to port 3 (mode access on vlan 20) on the 4 port switch wic (installed in 1721 router)port 4 is configured as trunk (encap dot1q) and connected to fasethernet 0 (inbuild of 1721)fastethernet 0 configured with no ip address?
created sub-interface fastethernet 0.20 with encapsulation dot1q on vlan 20?ip address of sub interface 0.20 is 192.168.20.240?pc nic ip address is 192.168.20.245 however cannot ping 20.240?I want to use only this router with its switch wic for vlans and internet?
Cisco WAN :: Linux Not Passing Traffic Through 1721 / 1841?
Jan 6, 2011I run a network that uses MPLS circuits to connect all of the companies different stores. Internet access is through a Cisco ASA5500 here at the corp headquarters.
To make all of this work, we use a little 1721 gateway router to move traffic as needed. All the clients in our corporate office use 10.10.99.1 (Cisco 1721) as a gateway. The 1721 routes the traffic either to the internet (10.10.99.106 Cisco ASA5500) or the MPLS router (159.61.54.30).
For some reason, anything that runs on Linux (Ubuntu server, ReadyNAS boxes, Thecus NAS) will not pass traffic beyond the 1721 gateway router.
I've poured over the config for that router, and I can't find anything that could be causing this not to work. Thinking that the 1721 was bad, I put an 1841 online in it's place, and it did the same thing. I'm a noob when it comes to Cisco configs, but am learning as I go along.
Ive attached a txt file of the 1721 config.
Cisco Switching/Routing :: 1721 WIC-4ESW Cannot Get BVI To Work
Mar 11, 2012I started to set up a 1721 router with WIC-4ESW. This is on an internal network, so only looking to just do routing from FA/0's interface to the networks attached to ports on the WIC. I first assigned just VLANs to 2 of the ports and this did not work. So I did some reading up and decided to use bridge groups. Except I still can not access the interfaces on the WIC. And by that I mean on the router itself I can not ping the ip assigned to the BVI.
I have another 1721 w/4 port that long ago I seem to remember simply assigning VLANs to the interfaces and I was able to communicate between the networks without issue (or maybe I just don't rememer that well). Thing is I should be able to at least ping the internal interfaces shouldn't I (assuming the status is up). I don't know why BVI2 and 3 are listed as down, nor do I seem to know how to bring these up.
This is what ip int br gives me:
1721#sh ip int br
Interface IP-Address OK? Method Status Protocol
BVI2 192.168.101.1 YES manual down down
[Code]....
Cisco 10mb Port - Inter VLAN Routing On 1721
May 18, 2012Second laptop attached to cisco 10mb port with an IP address of 10.18.158.200 and the cisco interface 10.18.158.254.Okay, here is what is happening and I cannot work it out.If I ping, from Laptop 1 to the cisco subinterface on 192.168.94.253 it is succesful. If I ping from the 1721 to Laptop 1 it is successful. I see the VPN come up and the rulebase on the junipers show the traffic flowing across (ICMP).If I ping, from the 10.18.158.254 interface via telnet on the 1721, I can ping all the way through to 192.168.194.254, which is the gateway for Laptop 1.
View 1 Replies View RelatedCisco Switching/Routing :: 1721 / Vlans Talking To Each Other Without Subinterfaces Set?
Sep 14, 2012I have set up a couple of vlans on a cisco 1721 router 4esw card using the vlan database and assigning an ip address of 192.168.1.x and 192.168.2.x for each vlan interface.Strangely enough connected computers can talk to the other vlan and I have not set any subinterfaces on the etherner0 (layer 3) and not even connected a cable.Is there any reason why this should happen since they should not talk to eachother being on seperate vlans.Doing a tracert shows that first the vlan ip address is hit and then straight to the target pc in the other vlan?
View 4 Replies View RelatedCisco Switching/Routing :: 1721 - No Internet For DHCP Client
May 17, 2012I can ping [URL], from the router but not from a client attached to the router dhcp interface(10.1.3.1). When I turn on ip routing I cannot ping at all. Here is the config I have now that can ping the internet from the router.
sh runBuilding configuration... Current configuration : 1191 bytes!! No configuration change since last restart!version 12.3no service timestamps debug uptimeservice timestamps log datetime msecno service password-encryption!hostname
[code]....
