Cisco Switching/Routing :: 3640 / ATM Over Ethernet Not Working
Apr 28, 2013
I'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.
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Dec 6, 2011
So I have 2 routers (cisco 3640) that each go to their own ISP and then back to the same switch. I have setup ospf and glbp, and now have pretty good redundancy. If either internet connection or routers go down everything is still golden.
So I was thinking that if an interface went down then the router would not be load balanced with glbp which got me thinking whats the best way to get interface redundancy (and I was going to add a 2nd switch with the second interface).
1) Setup BVI on the 2 interfaces.
2) Setup a 2nd interfaces (on each router), I would have to split the subnet, for instance: [code]then the machines could be on the subnet 192.168.0. 0/23 and setup glbp for 1 ip across all 4 interfaces (I'm not even sure if you can do this but think it would work).
3) Is there a way to utilize etherchannel or anything like this
A negative to option 2 would be that if 1 of the interfaces went down, all the sudden 2/3 (or so) of your traffic would be going through 1 router.
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Sep 23, 2012
The Cisco 3600 series (3640) is hanged during booting proccess, the IOS is decompressed, but after some text it hanges and I even cannot go to user exec. ROMmon and bypassing the config setting, but the result is still the same.
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Mar 21, 2013
I got this 3640, trying to apply a service-policy (output and input), but seems like I do it something wrong...because he only apply the output policy... here the config, I already try to config the service police inside the fa0/0, but is not showed at all, he only show the output, its like I never apply that
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Apr 8, 2013
I got some unexpected System crash, and this happens to 2 different routers on the same network.. (We suffer a Crash and change the router, happens the same to the new router after some time, maybe 40 minutes!!)
Here is the last console report for the new router....
%Software-forced reload
Preparing to dump core...
4w1d: %SYS-2-WATCHDOG: Process aborted on watchdog timeout, process = IP NAT Age
[Code]....
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Nov 1, 2011
We have a Cisco 3640 router running c3640-is-mz.123-3g.bin Switching ports are devided into several VLans. Each VLan has its own IP subnet. We can't ping IP address X in subnet A from subnet B unless we log into the router and ping it from there first. (and then the IP address will show up in "show ip arp" command. Then we can ping X in subnet A from subnet B, and browse web on device X from subnet B, etc. )
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Oct 1, 2012
i am running c3640-is-mz.124-21.bin on a cisco router 3640. i am trying to create a monitor session in the CLI and everytime i type the command Router(config)#monitor session 1 interface ethernet2/1 % Invalid input detected at '^' marker. Router(config)#monitor session 1 interface ethernet2/1 ^% Invalid input detected at '^' marker. i get the error invalid input ?
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Feb 5, 2012
How to configure my serial modules on my 2600 and 3640? Each router has the WIC-2T with two cables connecting them. I tried to ping one router from the other, but no luck. Serial IP address I just made up, this is my home lab, so if I messed those up some how,
Here is the running config for each rotuer:
2610:
Current configuration : 1071 bytes
!
version 12.3
[Code]...
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Dec 28, 2011
I have two routers at our core data center, a 3845 and a 3640. These are configured with GLBP. There are 4 remote sites:
Site #1: One T1 link to the 3825
Site #2: One T1 link to the 3825, and One T1 link to the 3640
Site #3: One T1 link to the 3825, and One T1 link to the 3640
Site #4: One fractional T1 link to the 3825, and One T1 link to the 3640.
My question regards site #4. If i understand correctly, GLBP works on the premise of "host" balancing, and not true "load" balancing. The reason I ask is that the large majority of our WAN traffic is from our Exchange server to our remote sites. In the case of site #4, our exchange server is sending traffic on the fractional T1. Is there any way with GLBP to either split this traffic from a particular host across two links in a round-robin fashion, but leave other hosts to travel wherever the router sends them, or, to force at least our exchange server to use the full T1, rather than the fractional?
I've read up on the weighting mechanism, and it appears that tracking an interface has nothing to do with bandwidth use. If I understand correctly, if I were to track the Site #4 PPP to the 3640, and give a weight of 10 to glbp on there, it would really only take affect if the interface is down. It will have nothing to do with host AVF election.For the record, exchange traffic is constant to this site, so there is no chance for the host connection to reset and potentially elect to use the larger pipe. I would like to "tweak" this to make better use of available bandwidth.
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Jun 25, 2012
I have the cisco 3640 with IOS Version 12.2(46) , and it with DRAM:32M , Flash:8M.What IOS version can support IPv6 RIP in the hardware limit?
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Feb 8, 2011
I have a 3640 router with 4 Fast Ethernet Network Modules (1fe-tx, 1fe2w & 2fe2w-v2) and a Catalyst 2912 switch. I can not acheive a link between the 2 devices. All four will not get a link light and the interface(s) show no errors. If I plug the Router nic into virtually any other switch or workstation it works flawlessly. I put a switch between the catalyst and the 3640 and it works without error.
Steps I have tried...
1. Configure interfaces on both Switch and Router to Auto Speed, Auto Duplex2. Configure interfaces on both Switch and Router to speed 100, Full Duplex3. Try Both Crossover and Straight-Through verified working cables.4. Tried a second 2912xl-en switch
Both 2912 switches are factory defaulted, other then the changes I made to the speed and duplex to try to get them connected.Both the router and switches have been doing other functions (seperatlly) within our network for years?So my question is...Why is the NICs in the router compatible with every other vendor other than CISCO?
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Feb 20, 2012
I 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.
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Feb 8, 2012
I have two routers I am trying to connect via the WIC-2T port. I can ping from router to router, but not from my PC (192.168.2.122) to the 3745 (10.0.1.3)..
3640:
Current configuration : 1846 bytes
!
version 12.2
[Code].....
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Jul 24, 2011
It 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" ?
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Jan 18, 2012
There 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.
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Aug 11, 2008
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.
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Feb 14, 2012
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.
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May 21, 2013
I have a Cisco SG 300-20 as the core switch, layer 3. It is 192.168.4.6 on VLAN1 and 192.168.5.1 for VLAN2 (VOIP). All the ports are set in trunk mode. DHCP relay is setup on this switch.
The phones connected into a layer 2, Catalyst 2960-S switch. All ports are set in trunk mode. Default gateway on it is set to 192.168.5.1.
DHCP for both VLANs is provided by a Windows Server 2008 R2 server (the relay IP 192.168.4.15).
There is also an ASA 5510 in the mix which is 192.168.4.1. It has a route added to it for the 192.168.5.0 network to go to the SG 300 (192.168.5.1).
Just the two switches can ping each other on the 192.168.5.x network when I "add vlan 2" to the trunk port that is connected between the SG 300 and the 2960. The phones don't get DHCP on the 2960 switch. And I cannot ping 192.168.5.x from the ASA or anything else on the 192.168.4.x network.
After a bit of reading on intra-vlan routing for the SG 300 switch, I am thinking the SG 300 has to be the "center" of things so I need to make it 192.168.4.1 to be the gateway for both VLANs and change the ASA to 192.168.4.2 for VLAN1, etc. And I really can't do asymmetric routing with this switch.
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Nov 23, 2011
I am using a cisco 3750 in my network as a gateway, and above it I use a squid machine for caching my internet. My network is like this:
Basically I have two VLANs on my network which are VLAN10 and VLAN100, VLAN10 is the cooperate network of my office. VLAN100 is the management VLAN which i use for the switches. I keep the squid as well the client in VLAN10.
squid (192.168.1.50)---->cisco 3750(192.168.1.123)---->Distribution Switch(cisco 2960)---->client PC (192.168.1.5)
I have done nating on squid and internet is working pretty fine when I use the client gateway as the squid, but when I use the cisco 3750 as my gateway after adding route maps for forwarding the internet traffic coming to the cisco 3750 to squid it disconnects me from internet as well I cannot even reach the switches from the corporate network. These are the only Lines I used for the routing:
!
route-map proxy-redirect permit 10
match ip address 110
[Code]......
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Jan 11, 2012
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.
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Jun 12, 2012
My 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?
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Sep 17, 2012
Is 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)
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Jun 10, 2013
Will Resilient Ethernet Protocol (REP) run on all Cisco switches (2960S and 3010) or is it only available on Service Provider switches like the ME3400E?
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Dec 12, 2012
While 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)?
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Mar 28, 2012
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]......
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Jan 10, 2012
Which 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.
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Apr 24, 2012
I 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].....
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Mar 5, 2013
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?
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Jan 3, 2012
My network is like this:
Cisco 3750 (Core Switch)-----> Cisco 2960 (Distribution Switch)-----> Client (PC, Laps, Printers…etc)
Basically I have 3 VLAN’s. Office VLAN (for cooperative usage) which is VLAN 999 which has a defined IP address of 192.168.1.123 and Guest VLAN (for the guests who visits our hotel, most of it are wifi AP’s) VLAN 20 which has an IP address of 10.172.4.1. All these SVI are defined on the core switch.
Is there any way I can introduce a new VLAN lets say VLAN 40 and use PBR to route the packets going to VLAN 40 in the IP range 192.168.1.x to VLAN 999 and 10.172.4.1 to VLAN 20? I have tried this already and it is not working. Here are the configurations I have used.
Access-list 110 permit ip 10.172.4.0 0.0.0.255 any
access-list 120 permit ip 192.168.1.0 0.0.0.255 any
route-map INT_RVLAN permit 10
match ip address 120 110
set ip next-hop 192.168.1.123 10.172.4.1
interface VLAN 40
ip policy route-map INT_RVLAN
Where have I gone wrong?
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Jul 10, 2012
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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Dec 29, 2012
I have a Cisco 2851 router and need an additional gigabit Ethernet port. How to get the part number I need to order?
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Jun 6, 2013
We are running a Cisco 887VA router for our internet access but of course the port connected to the internal network only supports 100Mbit/s. There are a few 100Mbit/s ports on the router; I was wondering whether it was possible to use more than one port to provide aggregation to get higher speed such as two ports providing 200Mbit/s? We are running Gigabit internal.
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Oct 8, 2012
I am moving a very small branch office to a new location, but we have a centrally controlled IT infrastructure team in Europe. I would like to implement a hosted VOIP solution without impacting the current network setup (i.e., VPN/Firewall) or asking this IT team to change anything on the existing LAN Network except the IP address/gateway. The VOIP system will have its own cabling.
Here is the configuration I would like:
• Cisco 861 as main gateway to the Ethernet from the ISP’s modem
• 2 static public IPs from the ISP, one for the VOIP network and one for the LAN
• Cisco 861 acting as NAT/DHCP for the VOIP system on one static public IP
• My company’s Juniper device on the second static public IP managing NAT for the LAN
I have a diagram here to map out what I am considering:
Two options I have seen:
• Setup Proxy ARP on the Cisco router, allowing the Juniper device a transparent (and unsecured/firewalled) route to the internet to get the Public IP and manage the LAN (seen in picture)
• Install an additional switch (with proper QOS prioritizing VOIP) at main entry point of location, and have both routers behind this (to minimize configuration of the Cisco router).
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