Cisco WAN :: 1841 / Using 1941 With OSPF And Both Ethernet Interfaces?
Oct 4, 2011In the past Ive always used the 1841 router to run these smaller sites.10-20Mbps/ using 1941 with OSPF and using both ethernet interfaces?
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Cisco WAN :: 1941 - Routing Between 3G Interfaces?
Apr 11, 2012I'm trying to get two Cisco 1941 routers with HWIC-1T and HWIC-3G-HSPA interfaces to use the 3G interfaces if the frame is down (as it is right now).In the lab, I was not able to get these to use the 3G interfaces as a backup (i.e. backup interface cell 0/1/0) and I've not been able to workout the correct incantation for static routing either.
kununurra#show ip int br d1
Interface IP-Address OK? Method Status Protocol
Dialer1 172.31.2.94 YES IPCP up up
[Code]....
Cisco Switching/Routing :: 6500 Ethernet Sub-interfaces Over Metro Ethernet
Feb 20, 2012I curently have 2 Data centers connected with a Metro Ethernet Connection. Each Data Center has 6500 with Sup720s. The Metro Ethernet connection is currently conected by a L3 routed interface. I now need to enable VRFs between the locations and want to determine the best way to adjust the Mero. I was considering adjusting the routed interface to use Ethernet sub-interfaces. Each VRF would be given a different subinterface over the Metro Ethernet connection. I have done this on internal LAN connections but am concerned about exteding across data centers over Metro E.
View 1 Replies View RelatedCisco Switching/Routing :: Multicast Over IRB Interfaces / It Fails On 2800 And 1941 G2
Sep 27, 2012Looking for multicast over IRB interfaces. My full config below, works as expected on a Cisco 1760 router (IOS 12-4) but fails strangely on our Cisco 2800 (IOS 15-1) and Cisco 1941 G2 routers.
I use Windows 7 Enterprise and VLC 2.0.0 Two Flower as the multicast video receiver. On the 1760 router, I open VLC, request the video (rtp://@239.255.0.1:5004) and it plays flawlessly.
We have to upgrade the older outdated unsupported Cisco 1760 routers. We replace the Cisco 1760 router with a Cisco 1941 router. Configuration differs ONLY in the interface speeds; F0/0 to G0/0 and that is just bout it. Using the same Windows 7 Enterprise PC, I open VLC again and request the video -same as before; No video and no voice. We swap the 1941 out and put in the 1760 again, multicast works flawlessly. If we put the 1941 router back in, multicast fails again. We put the Cisco 2800 series router in and it also fails the same as the 1941 router.
Troubleshooting, I open VLC and request the same multicast video. On the same PC, I open Wireshark and start capturing packets, - and instantly the VLC video starts playing. I close Wireshark and the video stops. I open Wireshark and start capturing packets again and the VLC video starts playing again.
Wireshark shows the video packets are being received from the source when VLC is requesting the video. If I close VLC while Wireshark is capturing packets, Wireshark shows the video stream stops.
Shows the correct multicast sources, incoming and outgoing interface details
Incoming interface is Serial
Outgoing interface is BVI
Show ip pim rp
Reveals the correct RP details
[code]...
Cisco WAN :: Second LAN Card On Models 1841 / 1941
Dec 18, 2011When two Routers Models 1941 (Main Router) and 1841 work connected with HSRP, and a second LAN card is added to each one of them If i connect the GE 0/1 and Fe 0/1 of each of one of them To FireWall1 (in cluster with FireWall2) AND i connect the second LAN (Added) of each one To FireWall2 (in cluster with FireWall1) If FireWall1 will failure , How can Router 1941 know, to move traffic from GE 0/1 to the second LAN card connected to FireWall2 (which is in charge now, by cluster definition)
View 2 Replies View RelatedCisco WAN :: 1841 Use Two Serials Wan Interfaces As One
Jun 25, 2012I have 1841 router with 2 serial Wan interfaces each one is 2 Mbps. i want to configure them to use all of 4 Mbps.How to Configure them.
View 8 Replies View RelatedCisco Switching/Routing :: Replacing 1841 12.4 Advsec With 1941 15.2M SEC/K9
Jul 2, 2012I decided recently to switch out our border router (1841 12.4 advsecurity) with a shiny new 1941 (15.2 SEC/K9) as the CPU upgrade was needed.The core below acts as a VPN end point to various other remote offices we have, all of which have a similar network design at each end (and all entirely managed by me). All of these are still running 1841's with 12.4 advsecurity on them as well. These are all GRE tunnels with ipsec procection on them (not crypto maps). [code]
Everything else works fine (NAT, route-maps etc), it's just these IPSEC/isakmp tunnels that are not playing ballIt's definitely not an ARP issue (all arps were cleared) and ICMP appears to work fine (ie, I can ping the remote tunnel's public IP endpoint from the core using the loopback for that tunnel as the source). I am suspecting it's something strange with the stateful firewall config, but I did try and apply ipsec and isakmp-msft to the ip inspect list, with no success.
Cisco WAN :: 1941 - Ethernet Bundling
Apr 19, 2011We would like to describe our scenario as follows. We hosted our internet gateway at a service provider which is away from our site about 10 km distance. The total internet b/w is 8Mbps. To connect the internet service provider, we have two lastmile connectivity with two different service providers each 4mb as a last mile. Both put together it will be 8Mbps. The lastmile by the service providers are through ethernet.
Our main objective is to utilise both last mile connectivity by bundling or through any other optimum method. There are common perception that the ethernets cannot be bundled. The router model we use is 1941
Cisco Switching/Routing :: 1941 Ethernet Load Balance?
Mar 5, 2013I'm setting up a lot of small remote sites that are only reachable via VHF ethernet radios that operate at 32k. I'm going to be using 2 of these radios shooting to two seperate base station radios to provide diversity. I'm going to have a Cisco 1941 sitting between the two radios and the way I have it configured now is to only use one radio and the second is only sitting there in case the primary fails. I was thinking though that I could load balance them to give a little more throughput. The devices at these sites are really low speed but we like to use snmp to monitor everything that is ethernet so I wanted to give as much bandwidth as I can.
Will load balancing work in this situation? What would the basic configuration be? This is all internal to our network so there are no ISPs to deal with. We're using C1900-UNIVERSALK9-M IOS will that work or will I need to change that?
Cisco Routers :: SRP521w Ethernet Sub Interfaces On WAN?
Aug 28, 2012Have followed the admin guide, and can setup this up fine, however what we're wanting is to turn off any IP connection for the main wan ethernet interface and only have the sub-interface have an IP connection method.
I can't see how you can turn this off, which is causing a double-up of dhcp requests being sent when using both the main/sub ethernet interfaces to use dhcp.
This has been tested on the 521w and 521w-u versions, and I've just used the latest firmware 1.2.4 on the u version.
How can this be configured so that there is only 1 WAN interface that is using IP (the sub interface) Setting default routes to point to the sub interface doesn't make a difference.
Cisco :: Monitoring Ethernet Interfaces On Nexus 7k?
Dec 17, 2012I am looking to configure port up/down status alerts in our monitoring system. We are using ActiveXperts Newtork Monitor Manager, which supports SNMP GET, which I would like to use. The monitoring system supports a plethra of OID data types, which I've used (Integet, ASG_INTEGET, ASGN_INTEGER32) in the past with success on our Catalyst 2k's. I'm not certain what to use for the Numeric OID value to monitor the port states on our F1 and M1 line cards.
View 1 Replies View RelatedEnable Both Ethernet Interfaces At Ubuntu 12.04?
Nov 22, 2012I have a machine with two ethernet cards and internet connection, on which Ubuntu 12.04 is installed.Both ethernet cards can take ip adress automatically say,
eth0:47.168.137.14 and eth1:47.168.137.15
I can ping eth0 but can not ping eth1.
Is there a special setting for gettting both ethernet interface active and reachable at the same time.
Cisco Firewall :: ASA 5505 ACLs On Ethernet Interfaces
Aug 18, 2011It is my understanding that ACLs can only be bound to logical interfaces using the access-group command. However, is it possible to somehow apply ACLs simply based on the ASA's local Ethernet interface? For instance, consider the following:
Device A with IP 192.168.1.1/24 is connected to Ethernet0/0 on the ASA. Device B with IP 192.168.1.2/24 is connected to Ethernet0/1 on the ASA.
Since both devices are in the same subnet and presumably the same VLAN, is it possible to manipulate the traffic to and from physical Ethernet interfaces using ACLs in this manner?
My predicament is fairly simple:
Internet --- ASA --- ROUTER
|
DMZ
In addition to NAT, VPN, and various other tricks, my ASA is also routing traffic from my internal LAN and the Internet to servers in the DMZ configured on the ASA. Due to a combination of Internet and DMZ traffic, my relatively slow ASA is struggling to route and thus becoming a bottleneck. My router is comparatively modest in terms of functionality when compared to the ASA but it is fast. My ideal solution would be to somehow harness the ASA's filtering capabilities for my DMZ but use the router to get traffic to and from my internal LAN into the DMZ without using the ASA to route it.
Additionally, it is worth noting that my DMZ is fairly restrictive so using protected or isolated ports would not quite work for me.
Cisco WAN :: 2811 - NM 2FE-2W Card And Fast Ethernet Interfaces
May 18, 2011I had a question regarding the Cisco 2811. I tried fitting an NM 2FE-2W card and the fast Ethernet interfaces of the module never get recognized. Is there a special command to enable it or isn't the module supported at all by the router. If not , is there a way to have the router possess more than the 2 Fast Ethernet interfaces it already has? Let me know if any more info is needed from my end.
Another question I have out of curiosity. Is it possible to make the controller T1 port of a VWIC 1MFT-T1 or a VWIC 2MFT-T1 act as a fast Ethernet.
Cisco WAN :: 7206 VXR - NPE-G2 / Add More Copper Gigabit Ethernet Interfaces?
Aug 17, 2011We have a Cisco 7206 VXR Router with NPE-G2. As everybody aware that, It has got 3 x Gigabit Ethernet Ports on this. We would like to add Two more Copper Gigabit Ethernet Interfaces. The Configurator does not show any options to add that...
Now we have a doubt that, Does this 7206 VXR support how many Copper Gigabit Ethernet Interface ?. There is no clear answer available in the Data Sheets.
Cisco Switching/Routing :: 1941 - Use One Ethernet Port (G0/0) As Primary And Other (G0/1) As Backup Interface
Jan 20, 2013Here's my problem. I'm going to be using Cisco 1941 routers at a bunch of remote sites. All of these sites have 2 comm paths out. Some of them have 2 IP/VHF radios and some have 1 IP/VHF radio and a copper link using Patton ethernet extenders. From the VHF radios the data hit our MPLS network back to our HQ and the sites with copper go directly back to our HQ. Everything ends up at a Cisco 4948 switch. The problem I'm having is that I want the routers at the remote site to use one ethernet port (G0/0) as the primary and the other (G0/1) as the backup interface. I've tried the backup interface command but the problem is that depending on where an outage occurs the ethernet link to either the radio or Patton stays up so it never switches over. We're using OSPF as our routing protocol and I'm sure there's something that can be done with it but I'm not sure what.
View 4 Replies View RelatedEthernet Versus Serial Interfaces Work?
Dec 6, 2011I know serial interfaces are called that because they put bits on the wire serially - i.e. one bit at a time. If that's the case for serial interfaces, how do other kinds of interfaces, such as Ethernet interfaces, put bits on the wire? Do they somehow put more than one bit on the wire at a time? I assume it's a faster process, but how so?
View 4 Replies View RelatedCisco Switching/Routing :: 1841 / Routing Through Sub-interfaces Fails?
May 31, 2013I have a problem accessing my wireless router through VLAN sub-interface on my Cisco 1841 router. My hardware:
Cisco Catalyst 2960 switch (192.168.100.4 /24)
Cisco Catalyst 3550 switch (192.168.100.6 /24)
Cisco 1841 router (192.168.100.7 /24)
Asus RT N66U wireless router (192.168.100.2 /24)
Here's my network topology:
I have two VLANs - 10 and 20. 2 DHCP pools are configured on 2 1841's interfaces - 192.168.1.0 /25 and 192.168.1.128/26 with default router sitting on 192.168.1.1 and 192.168.1.129 respectively. No issues with obtaining IP address from any of those pools.Laptop connects to L3 3550 switch (switchport access vlan 10), which, in turn, connects to 1841 router through trunk (with VLANs 10 and 20 allowed).3550 is connected to 2960 through trunk with VLANs 10 and 20 allowed.Wireless router is connected to 2960.I can successfully ping my wireless router and outside world from 1841 from fa0/1 interface, but not from fa0/1.10 or fa0/1.20 sub-interfaces - all packets got dropped. My laptop can obtain IP from both pools (depending on port I connect it to), but can't ping my wireless router and anything beyond it.
I attach my configs:Cisco Catalyst 3550:interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk switchport port-security mac-address sticky speed 100!interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk!interface FastEthernet0/3 switchport access vlan 10 switchport mode access!interface FastEthernet0/4 switchport access vlan 20 switchport mode access!Cisco 1841:
ip dhcp pool Vlan10DHCP network 192.168.1.0 255.255.255.128 default-router 192.168.1.1 dns-server 208.67.220.220 domain-name home.local
!ip dhcp pool Vlan20DHCP network 192.168.1.128 255.255.255.192 default-router 192.168.1.129 dns-server 208.67.220.220 lease 0 12
interface FastEthernet0/1 ip address 192.168.100.7 255.255.255.0 duplex auto speed auto!interface FastEthernet0/1.10 description VLAN10 Sub Interface encapsulation dot1Q 10 ip address 192.168.1.1 255.255.255.128!interface FastEthernet0/1.20 description VLAN20 Sub Interface encapsulation dot1Q 20 ip address 192.168.1.129 255.255.255.192!
Routing table on 1841:
[code]....
Cisco WAN :: AGFR01RTR03 / AGFR02RTR03 - Missing Route In OSPF To OSPF Redistribution?
Sep 22, 2011I have 2 ASBR routers, AGFR01RTR03 and AGFR02RTR03, performing OSPF to OSPF redistribution in both ways for the same ***. They also do summarization for our private addressing scheme. It is all working just fine for that part (neighbors, summarization, redistribution).
AGDC01RTR01 --- AGDC02RTR01 (OSPF 1000 ABRs)
| |
| |
AGFR01RTR03 --- AGFR02RTR03 (OSPF 1000 / 53 ASBRs)
Let's focus on AGDC01RTR01 with a specific entry here (IP subnet is fake) :
Routing entry for 1.1.1.0/25
Known via "ospf 1000", distance 110, metric 300, type inter area
Last update from 10.2.244.76 on GigabitEthernet5/1, 1d03h ago
Routing Descriptor Blocks:
* 10.2.244.76, from 10.2.1.249, 1d03h ago, via GigabitEthernet5/1
Route metric is 300, traffic share count is 1
[code]...
Cisco WAN :: VLAN 160 / 162 - Different OSPF Process ID For Interconnect Between 2 OSPF Domain
Mar 14, 2011Currently the OSPF network consist of 2 segment route via static route.One is AREA 0 and another AREA 10.Both network are seperate entity, only static route to route between 2 networks.But the static route do not provide the dynamically and flexibility, I plan to run routing between 2 networks via VLAN160 and VLAN162.
I still want to manitnace it was 2 different OSPFrouting domain.Can I run OSPF with differrent OSPF porcess ID?
Cisco WAN :: 1841 - Routing Between Ethernet Ports
May 1, 2013I have a Cisco 1841 that has an ADSL (ATM) card installed. It was previously used with an ADSL line to provide NAT routing for an office. Now I want to use it witha cable modem, which would mean abandoning the ADSL interface and instead routing between the two Ethernet ports.Between the Cisco and the LAN is a Linux transparent proxy. It provides routing between 192.168.1.0 (LAN) and 192.168.2.111 (Cisco LAN interface). The network looks like this:
Cable Modem(174.76.21.1)(gateway) --- (174.76.21.10)(WAN) Cisco 1841 (LAN)(192.168.2.111) --- (192.168.2.11) Linux Proxy (192.168.1.10) --- (192.168.1.0) LAN
For testing and diagnostics, I've connected a laptop to each FastEthernet port on the router. One laptop is configured with the IP 174.76.21.1 to simulate the cable modem gateway and the other laptop has the IP 192.168.2.11 to simulate the Linux proxy. From those systems I've performed the following diagnostics with the following results:
From 192.168.2.11
Ping 192.168.2.111 - OK
Ping 174.76.21.15 - OK
Ping 174.76.21.1 - Timed out
From 174.76.21.1
Ping 174.76.21.15 - OK
NAT translation to LAN IP's failing
There are some vestiges of the ADSL configuration, but I've cleaned most of it out and shut down the ATM interfaces. Here's my config:
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
[code].....
Cisco WAN :: Migrate To Metro Ethernet On 1841
Apr 21, 2011my company will change WAN connection from HDSL (2Mb/2Mb) to Metro Ethernet (10Mb/10Mb). Now, I have CISCO 1841 (12.4(15)T12 ) with 2 FE and HWIC-1T. Can i configure my Metro Ethernet (WAN Connection) on one FE or i need of "external wic" such as hwic-1FE ?
View 1 Replies View RelatedCisco WAN :: 1841 With Ethernet And ADSL As Resilient?
Nov 28, 2011I have a cisco 1841 router in place. I also have a ADSL module which fits into the cisco router. My understanding is that if configured correctly, If the primary circuit were to fail (Ethernet Circuit MPLS), the ADSL would take over services until such time the ethernet link becomes available.
Therefore the ADSL circuit is used as a resilient link. If this is possible, can the Cisco 1841 be setup to automatically switch over to the ADSL? Would there be some sort of heart beat between the ethernet circuit and adsl circuit?Also from the other end of the Cisco router, the connection goes into a firewall. If the Cisco handles the failover, I assume I would not need to configure anything on the firewall.
The end users beyond the firewall, should be able to continue, however the performace would be degraded?
Cisco WAN :: Fast Ethernet Is Up / Line Protocol Down 1841
Aug 2, 2012I have a cisco 1841 whose LAN interface is showing status as "Fastethernet 0/1 is up , line protocol is down" the duplex and speed settings in the Router are in Auto mode and the Router was working fine till now , when i changed the duplex settings to duplex full , speed 100 the ping replies comes back with 5-6 replies then the link dies again..
View 1 Replies View RelatedCisco WAN :: 1841 Router Load Balancing With WIC 2T And Ethernet Port
Jun 9, 2013Can we do the load balancing with WIC - 1T card as ISP - 1 and Ethernet card as ISP - 2 and other ethernet card as my LAN Network.
WIC - 1T - connected to ISP Ethernet card - Connected to Secondary ISP Second Ethernet card - connected to LAN Connection.
I would like to have load-balancing & fail-over between this two connections.
Cisco WAN :: Terminate New 10M Link Via Ethernet Interface On 1841 Router?
Dec 19, 2010We want to terminate new 10M link via Ethernet interface on Cisco 1841 router. We have free Gig port on the router. We also have HWIC-FE module inserted in the router. However, our implementation team said that Cisco 1841 doesn't support 10M link. It is not designed to cater to such high Bandwidth.
View 14 Replies View RelatedRouters / Switches :: Isolate 1841 Router Fast Ethernet Port?
Feb 4, 2011I have a Cisco 1841 router with the followingSerial T1 connection Fastethernet 1 with network address 192.168.0.1 Fastethernet 2 with network address 198.168.0.1I want to isolate Fastethernet 2 so that it cannot access the internet or the 192.168.0.1 network. Only incoming request is available.
View 5 Replies View RelatedCan OSPF V2 And OSPF V3 Run In The Same Time
May 15, 2011I am running IPv4 with OSPFv2 currently. However, I planed to deploy IPv6 in my network. Is it possible to deploy V6 with OSPFv3 without affecting current network traffic in V4?
View 7 Replies View RelatedCisco :: OSPF On ASA Not Getting A Route?
Aug 29, 2012why a subnet wouldn't be passed on to just one participating OSPF device?
I have two routers and an ASA, all of which are in area 0, it's a pretty simple config. The two routers are connected to some other devices (also in area 0) that pass of an external route to a particular subnet, let's call it 192.168.4.0. The routers are getting it just fine, but the ASA is not:
Cisco :: Does OSPF Cause Loops
Dec 6, 2012What if i run ospf in all of the routers in network diagram ? does it caus loops ? if so how to prevent it ?
View 8 Replies View RelatedCisco :: Increase The TTL Of An OSPF Hello Packet?
Jul 12, 2012Isn't there a way to increase the TTL of an OSPF Hello packet or am I thinking of a different protocol? Or is it only with virtual links? I can't seem to find it in my ROUTE cert book or on the Intarwebz outside of setting TTL security, but I could have sworn I remembered configuring something like this in my ROUTE lab book that I unfortunately do not have at work.
View 8 Replies View RelatedCisco :: Presenting Public IP To ASA Over OSPF?
Oct 29, 2012I will be provided with /29 public IP address from my ISP. The idea is to run OSPF between ISP and my ASAs over private IPs so /29 is presented to ASA. This is because I will be using 5 out 6 available IPs on my ASA so I cannot use them on the routers.I need to run HA in Active/Standby mode on ASA, terminate site-to-site and remote access VPNs on ASA, and use static NAT for kit in DMZ network I am trying to figure out how to present this public IP range on ASA. Should I create two subinterfaces on physical interface towards OSPF area and assigned private IP address on one of them for OSPF and public IP on another and then setup a failover on each subinterface.
View 4 Replies View RelatedCisco :: Run An OSPF Protocol Over An ATM Connection?
Apr 25, 2013I'm trying to run an OSPF protocol over an ATM connection:
192.168.80.0 |----10.0.0.1-----------10.0.0.2----| 192.168.50.0