I am have a little trouble setting up my home lab. I have a 3620 with two ethernet ports and a 3640 with four ethernet ports. I also have a 3500XL switch that I am using to connect the two together, but I can't seem to get each one to ping.
Here are my configs:
3500XL
3500XL-BottomSwitch#show run
Building configuration...
Current configuration:
!
version 12.0
[Code]......
I came across a interesting symptom. Refer to the following topology.
host 1 <-> R1 <-> R2 <-> FW<-> host2
host 1 is configured to send syslog to host2, however due to firewall ACL is not configured, this has caused a spike to 99% in R1 which already has 70% - 80% cpu.
My questions are :
1) Even if the firewall is sending RST back to host 1, it should not caused an 20% cpu increase in R1 cpu. Why this is so? Router model is 3620.
2) How do i prevent this from happening in future? This could potentially allow someone to send random traffic to hosts and cause network performance issue. Is there a way to turn off the RST response from the Firewall? This is an Cisco ASA.
I have a Cisco 3620 router and I am trying to get internet access. My isp is comcast. All modem lights seem to be operational. But I do not have internet access. I can ping anything other then the router and I am on a home network.
View 47 Replies View RelatedI just finished setting up a bundle of (2) T1's in a multilink bundle and I'm having issues with one of the T1's not wanting to join the bundle.
The router I'm using on the remote office location is a 3620 router running code c3620-i-mz.121-1c.bin
The campus router which is a 7206 is setup the same exact way with multilink 240 and like I've said, serial 0/0 is joined to the bundle just fine, so we are running off one T1 connection.
The serial interface that is not working is: serial 0/1
Here is a show-run:
interface Multilink240
ip address 172.18.xxx.xxx 255.255.255.252
ip route-cache flow
ip ospf network point-to-point
service-policy output PhonesFirst
ppp multilink
[code].....
Scenario: Two buildings connected with a private leased fiber line, so it does operate as a LAN. There are several subnets and everyone at both buildings needs to be able to access all subnets. However the physical machines on those subnets are building specific:
-Building 1: 10.2.0.0/24 (vlan20), 10.4.0.0/24 (vlan40), Internet connection
-Building 2: 10.1.0.0/24 (vlan10), 10.3.0.0/24 (vlan30)
The majority of the traffic between the subnets is specific to the buildings as well (i.e. most of the traffic is between 10.1 and 10.3 or 10.2 and 10.4).
Currently I have a Catalyst 3560 at Building 1 operating as the single "core" L3 router (and then a variety of switches connected to that). I have another 3560 at Building 2 that I'd like to turn in to the "master" L3 router for the two subnets primarily used by Building 2. In other words, make it so traffic from 10.1 to 10.3 doesn't have to run to building 1 just to get back to building 2.
I've got a basic knowledge of adding VLANs, VLAN interfaces and a static routes. The part that I'm getting confused on is that the Building 1 core router needs to make its default route to the firewall (and on to the internet) but "know" that traffic on vlans 10 and 30 gets sent across the fiber line to the other router. So I'm assuming this gets done with some combination of vlan definitions, vlan interfaces and static ip routes on each router.
I have a home lab. I am trying to connect a 1710 to a 2610 with just using the fast ethernet ports. I understand that serial connections and t1 csu/dsu connections use clocking, etc. How can I configure FA ports to do the same AND be routable?
View 6 Replies View RelatedWhile I managed to connect to each router individually, I decided it was time to connect the routers together via serial; as I don't have any serial cables and need to buy some, what serial cables I need, as well as to ask whether I have the right cards in my router(s) that will allow me to do so.
I bought 3 1841 routers, and all have a 1 port serial WAN Interface Card (WIC 1-T); one router has 2 of these, and one router has a WIC-1B-S/T .. My question is, can I connect the routers with a serial cable via WIC 1-T, or do I need a 2-T
Although I haven't looked through all the forum topics I couldn't find anything very similar to my situation. I have a rather large house and my modem/router (Netgear DGND3300 v2 due to DSL) is in the very corner. Given this most of the opposite corner of my house gets either poor or no connection; however, I do have an ethernet cable run across the house through the basement to my home theatre setup. This is where I encounter another problem, I need multiple devices to be connected via ethernet and I also need to have wireless in that same area. In my mind I picture myself connecting a second router to this ethernet cable through which I could have wired connections to all my devices, and a second router broadcasting wirelessly. I'm familiar with some types of wireless bridging, but I'd rather use more of a wired bridge concept if possible, but I've never really seen something like this. The question is, is this possible? Or, what is another possible way to achieve the same results? The only other thing I can think of is to run an ethernet hub from the original wired connection to my home theatre so I can connect multiple ethernet devices and run a separate wireless extender or something, but this just seems pricy.
View 2 Replies View RelatedI've got a Cisco DPC3825 modem that I also use as a wifi router. Conntected to it I have 4 eithernet cables:
1. From PC to Router
2. From another PC to router
3. From TV to router
4. From a Dlink Powerline Adapter to Router.It took me a while to figure this out but when I unplug all the eithernet cables and plug back in #1 and #2 (from above) the internet works. When I plug back in #3 and #4, the internet dies. Meaning, I am connected to the network but not the internet. I've reset the modem, changed SSID and restarted the PC many times but still can't figure out this issue.
In testlab we use pim-sm with bootstrap router on sup7 with IOS-XE 03.04.00.SG. Any possibility to prevent non authorized rp from connecting to the candidate bootstrap routers? We found several security recommendations concerning limiting registering of sources at the rp, rate-limits etc, but no possibility to control rp connecting to the bsr.
View 4 Replies View RelatedI 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 RelatedIt is understood that sub-50 ms ERPS convergence can be achieved with certain HW/SW combinations.
1) What are the platforms supported (and with what FW/SW) has this been tested ?any results that can be shared?
2) Link failure detection in GigE on Copper is slower compared to GigE over "pure" Fibre; so no sub-50ms would be possible with Copper ring ports.is sub-50ms convergence achievable with "combo SFP ports" ?
Looking for routing with an SA540 router connecting to corporate VPN.We have an odd configuration that is beyond the scope of what I have configured previously with these devices..I am trying to configure the routing to the additional IP addresses listed for the HQ. The VPN tunnel between the .26.120.x and the .17.0.0 networks is built however it does not appear to be routing. The Cisco administrator at the HQ site says that they have "fully configured the routing" from all the listed IP addresses back through the VPN tunnel. The options I am unsure of for configuration of the SA540 router are: GW - I believe that I use the internal IP address of the 17.26.120.x router.Is this logical since the VPN tunnel. We are using NAT for the firewall internally.The existing 3 172.26.x.x VPN tunnels are live and working and fully routing between themselves.
View 2 Replies View RelatedCiscoSwitch1(4506) has 3 VLANs(12,13,14) and Switch2(4948) has 3 different VLANs(22,23,24) and IP routing has been enabled in both switches with SVI interfaces for each vlan. intervlan routing is works fine.Now there is a requirement to connect these switches together. Vlan 12 on the Cisco switch 4506 has to be made available from vlan 22 from Switch2(4948). basically Vlan 12 is having a multicast source (225.0.0.0 & 226.0.0.0) which should be accessabile from vlan 22 of cisco switch 4948.I got 2 ideas
1) Create a trunk between these switches and configure L2 vlan(12) in cisco 4948...i know theoritically it should work but what my concern is Ip routing enabled in both switches will it create any issues? is it a gud solution to this requirement?
2) Create a separate IP network on the ports connecting to both switches and set up routes to the networks.ex- console(config)#ip route 192.168.10.10 255.255.255.0 192.168.20.1.
Some network pros have setup our Cisco 3620 many years back during implementation.
I've just added a new server, with new ip, wanted to change the ip of ip nat translation in this router.
I did a show run, the config is this;
interface FastEthernet0/0
ip address 57.31.132.116 255.255.255.240
no ip redirects
[Code]......
I have several cisco 3620 being used for PPPoE connections. I want to generate MRTG of the connections. Would anyone have the snmp OID to monitor the number of users?
View 11 Replies View RelatedAny example of router config for a terminal server.In fact I need a configuration for a router with multiple, low speed, asynchronous ports that are connected to other serial devices, for example,modems or console ports on routers or switches.With this router I would like to use a reverse telnet to connect with my devices using the serial connection.I find many examples on the Cisco web site but none with my router hardware configuration.My router is a 3620 router with a 8 port async (NM-8A/S) network module and I would like to use the 8 serial interfaces, each of them connecting a serial device.
Here is the show run and show ver :Router#show ver Cisco Internet work Operating System Software IOS (tm) 3600 Software (C3620-I-M), Version 12.3(25), RELEASE SOFTWARE (fc1)Copyright (c) 1986-2008 by Cisco Systems, Inc.Compiled Mon 28-Jan-08 20:16 by alnguyen
ROM: System Bootstrap, Version 11.1(19)AA, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1) Router up time is 1 minute System returned to ROM by reload System image file is "flash:c3620-i-mz.123-25.bin"
[Code]...
Cannot get on internet. Loaded Windows XP on Acer Aspire 3620. I think the laptop was dropped. Try to get it onto the internet and use the computer primarily to check my e-mail and chat.
View 2 Replies View RelatedI have an acer aspire 3630 and i recently got it, so i decided to update all drivers and i stupidly didn't do a back up now the wifi isnt working, i tried uninstalling the cards, and tried doing what this thread saidi even tried installing all the drivers i could find (broodcom, foxconn, the drivers from the acer site) and nothing is working, my wifi light next to the switch keeps flashing on and off.
View 7 Replies View RelatedThere is some way to increase the speed of changing the interface state from DOWN to UP when the cable is connected. I need to configure a port of Cisco 4503 in a way that when a cable is connected the port goes immediatly UP.
A solution can be to keep Cisco interface always UP and I remember that with "no keepalive" command to the interface configuration it was possible. But I tried and nothing happens.
I am having a heck of a time finding information on this. I have a 2620xm router that only has one Ethernet port on it. Is there an expansion I can get that allows me another Ethernet port. I have thus far assumed that all of the WIC cards won't allow me to attach to an Ethernet LAN.
View 7 Replies View RelatedI'm using 3640 router running on c3640-js-mz.124-25d.bin IOS. I'm using NM-1A-OC3SML= (ATM OC3, long reach single mode) interface card. Now my pc is connected an fast ethernet interface of the router. Need to know the ATM configuration on this cisco 3640 router in order to achieve the ATM over ethernet traffic get success. As of now i've confugred as below but it's not working it seems.
interface ATM2/0
bandwidth 120000
ip address 10.2.2.1 255.255.255.0
no atm ilmi-keepalive
pvc 0/36
protocol ip 10.2.2.10 broadcast
cbr 70000
encapsulation aal5mux ip
let me know the correct encapsulation type for the connectivity.
I own a Cisco 892W router. The router has 2 WAN ports and 8 switch ports. Now I know -
-WAN ports can create sub interfaces, assigne IPs, cannot be assigned to a VLAN - sounds very much like a routing port. (sh interface gives - Hardware is PQII_PRO_UEC)
-Switch ports are for VLAN assignment, trunking, IP assigment etc,. (sh interface gives Hardware is Fast Ethernet)
I know they are different but at the same time confuced what the difference are? I also know on some 3xxx series switchs you could say "no switchport" and translate a switch port to a layer 3 port. But on 892W you can't do this? Struggeling to understand the difference.
I am looking a 16 or 24 Port Ethernet (NON POE) card for my 2800 Cisco Router NM-16ESW is EOL/EOS and the replacement is shown as SM-ES2-24 However SM-ES2-24 is not supported on Cisco 2800 Series.
View 2 Replies View RelatedMy first time programming a Cisco ASA - Anyways I''m trying to setup up Ethernet 0/6 to be a DMZ Connection When I add port 0/6 to DMZ it gives me an error saying "The IP Address X.X.X.X /Subnet Mask cannot overlap the subnet of interface outside"So my question is I have an outside connection already configured - How can I make a DMZ connection with the same subnet mask with a different IP?
View 1 Replies View RelatedIs it possible to implement LLQ(QoS) on ethernet modules in the Cat 6500? For this feature, I can only find documentation about ES+ modules or SPA/SIP modules! (according to the feature navigator LLQ is supporten on the concerning HW and SW image)
View 2 Replies View RelatedWill Resilient Ethernet Protocol (REP) run on all Cisco switches (2960S and 3010) or is it only available on Service Provider switches like the ME3400E?
View 2 Replies View RelatedWhile configuring PoE Ethernet EHWIC PoE modules with ISR G2 routers Cisco DCT gives a warning to select AC Power Supply with PoE ‘PWR-3900-POE’. Do we need to select the PoE power supply for Enhanced EtherSwitch SM PoE modules also (at present it does nt show any warnings)?
View 1 Replies View RelatedWhich WIC or NM Ethernet card is compatible with a 2620, (non XM) router? I have seen conflicting information on compatibility. I am wanting to connect this router via an Ethernet Port with a non Cisco router that is connected to my ISP.
View 1 Replies View RelatedI have cisco 1801W . Earlier I am using ADSL dynamic IP address on RJ 11 through the ADSL Port but now the ISP change the connection to RJ45.
I am trying to configure it but unable to do this. ADSL line is okay because When I am connecting through the ISP router it is working fine. I have connected the ADSL RJ45 cable in the router fast ethernet 0.But I wanted to use Cisco 1801 Router so that I can use the ADSL as primary and ISDN as the backup.
Below is my configuration, eiteher this is possible to configure ADSL through RJ45 in 1801 and what configuration require for this.
Router#show ip int brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0 unassigned YES DHCP up up
BRI0 unassigned YES unset administratively down down
BRI0:1 unassigned YES unset administratively down down
BRI0:2 unassigned YES unset administratively down down
[code].....
I'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?
I config my E0/0 Interface with "ip ospf network non-broadcast" command, I want this interface to use uni cast to hello neighbor.
As I issue "neighbor x.x.x.x" under ospf process, it told me that: OSPF: Neighbor command is allowed only on NBMA and point-to-multipoint networks. I am sure that there are no any typo, and show ip ospf interface e0/0 says it's been an NBMA interface, so what's wrong with this router?
IOS information:
(C3620-J1S3-M), Version 12.3(18), RELEASE SOFTWARE (fc3)
I have the possibility of upgrading a DS3 to Metro Ethernet, Gigabit connection. My dilemma is I have two VTP domains in my network. How can I get two VTP domains over one trunk to a remote site ?
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