I have a Home Virgin media cable connection at home. the only way to get this working with my Cisco gear is by putting the superhub on modem mode.On modem mode, it becomes just a dumb modem assigning and IP via DHCPI can get the switch to get an IP address from the modem with
no switchport
ip address dhcp
then I have created
0.0.0.0 0.0.0.0 fa0/48
to route traffic to the port connected to the mode,The switch gets the assigned Ip address from the modem but it does not route internet traffic.
From the different vlans and subnets on the switch, I can ping the modem.
From the switch I can ping 8.8.8.8
From the machines, i cannot ping 8.8.8.8
On my machines, what should be the gateway? the vlan SVI, the modem's IP address, The fa0/48 ip address? I have tried them all with no success.
I am able to ping from pc to Router1. I am able to ping 4.2.2.2 and google from Router1 but unable to ping it from Router 2 and pc.
Here is my config for Router1:
Current configuration : 1089 bytes ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption
I am trying to implement in the lab. I have 2 switches 3550 and 3750. my questions are:
1. why i can't see vlans in the running config on switch 3750 even after i created 3 vlans?
2. the 3750 is power over ethernet switch and i am trying to connect 3550 and 3750 thru cross over cable trunk link and the ports doesn't show up no light nothing. is it the right way of cabling.
I live in a condo building that uses 3 Cisco Catalyst 3550 switches connected to a Comcast router with 100 Mbps download. Currently we regulate bandwidth by providing each user with 3 Mbps download. Even if only two people are active they still only get 3 Mbps download. I would like to set it up so if two people are using they each get 50 Mbps; a sort of 'dynamic qos. Is this possible with these switches? Would we have to purchase a Cisco router in order to provide this feature?
I am with Virgin media and have a home lab (2611 routers, 3550 switches, 2950s etc) which i usually just use for testing things on and practicing.
Now I tried to connect it to the internet and got some weird things happening.
I got NAT and DHCP client all setup correctly on the router (or so I think!) along with DNS settings but I still can't get Internet access.
My network is all setup right so that through using OSPF the router is the gateway (0.0.0.0 route) for all devices. Doing a traceroute confirms this.
Yet I never get any further than the router? I see IP nat translations ticking up as I send more requests but never get a webpage or a reply from any of the machines in my network.
HOWEVER... The router itself does get some replies from Google.co.uk and bbc.co.uk but doesn't seem to want to give anything else on the "inside" a response?
Here is a dump of config:
version 12.4 service timestamps debug datetime msec service timestamps log datetime msec
I current have a Cisco 2100 Cable modem (192.168.100.1) connected to a Cisco Linksys E2000 (192.168.0.1) that is connected to a Cisco 3550 (192.168.0.10). I would like to relocate the E2000 to another room. This would require me to connect the 2100 and the E2000 through the 3550. I have had to set a MAC address clone on the E2000 of the PC that is also connected to the 3550.
The question I have is how do I get this all to interconnect so that the E2000 is used by the 2100 for validation to the internet provider (Time/Warner). I am also using the E2000 for DHCP.
Here is a copy of the running config:
version 12.1 no service pad service timestamps debug uptime service timestamps log uptime
We have a core switch Catalyst 3550-24-PWR Connected are 2 Catalyst 2960 PoE-24 and one Catalyst 2950-24
3550 together 2960 works well 2960 together 2950 works well 3550 connected with 2950 refuse to establish connection. Port goes down immediately.
Example 3550 Fe0/19+Fe0/20 -> 2960 G0/1+G0/2 status OK 3550 Fe0/21+Fe0/22 -> 2960 G0/1+G0/2 status OK 2960 Fe0/12 -> 2950 Fe0/24 status OK 3550 Fe0/8 -> 2950 Fe0/24 status down
I have a cable modem with my 2600 Router and i have a little speed problem when I'm going out to the web via my F0/0.. according to regular speed test sites my speed is around 20mbps but when i hook up to my modem directly i get a solid 40mbps.. now I've changed my Cat 6 cable from my modem to my router and this are my settings in the router.
[Code] ...........
I see some drops and lost carriers but not sure what those might mean?
I'm trying to configure a disco router 2600, my internet connection is via a cable modem. I get a dynamic IP from the cable modem but when I ping to any external IP I have errors.Copy show config and show interface f0/1
GUEST#show config Using 1103 out of 29688 bytes ! version 12.2 service timestamps debug uptime service timestamps log uptime no service password-encryption [ code]...
I am having an issue with my network that has me perplexed. I have a DPC3010 cable modem (Charter internet). I previously had it connected to a Linksys WRT54GL with DD-WRT installed and that was working OK except that I had to reboot it 2-3 times per week. I replaced it with a Cisco 861 (non-wireless) router and it worked OK for a few hours then it started dropping the internet connection (it goes up and down constantly). If I switch back to the Linksys everything works fine again. I am using the same cables in either case so I know it's not a cabling issue. I upgraded the firmware to c860-universalk9-mz.151-4.M3.bin, but it made no difference. I was starting to suspect a problem with the physical ports on the router, but I decided to try connecting the 861 behind the Linksys and turns out it works fine in that setup.
So to recap... If I connect the 861 directly to the modem my internet connection bounces up and down If I connect the Linksys directly to the modem my internet connection is fine If I connect the Linksys directly to the modem and the 861 to the Linksys everything works fine (my PC is connected to the fe0 port of the 861)
Are the 861 and the modem simply incompatible or is it a configuration issue? I have attached my 861 config to this thread.
I have a cable modem installed to my property but want to use my modem/router to go wireless. The proble is my cable modem output is a RJ45 and the router input is RJ11.
I have a collapsed core design with routed ports between all components. Access layer switches, data center switches, core/aggregation. All routed (no spanning-tree at all).Now...I have to add an IBM BladeCenter with a BNT layer 3 switch to my topology. However, those nasties don't seem to support routed ports.How can I have a routed port on my cisco switch and a standard access port on the BNT and still establish an adjacency with an SVI? I am running OSPF, but I am labbing this in my home lab with 2 x 3550s and EIGRP.
On SW2: *Mar 1 00:57:00.711: EIGRP: Received HELLO on Vlan100 nbr 10.1.1.1 *Mar 1 00:57:00.711: AS 999, Flags 0x0, Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 *Mar 1 00:57:02.303: EIGRP: Sending UPDATE on Vlan100 nbr 10.1.1.1, retry 9, RTO 5000 tid 0 *Mar 1 00:57:02.303: AS 999, Flags 0x1, Seq 17/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1
Is L3 ip routing on by default in 3550s? If so is the "ip routing" command visible in the config file? If no - I assume that one would enable L3 routing with that config command.In general terms are there any IOS devices where ip routing is enabled and one would not see the "ip routing" command in config. I.E. if that command is not visible in the config could you assume there is no L3 capablity in that device?
The layer 2 switches are connected to layer 3 Switch via trunks, and routing between layer 2 switch ports with configured SVI's on 3550. All working fine. Now I'm trying to configure routing between 2800 and 3550, I tried connecting both Straight Throught and Crossover cables to the 2800 Fa0/0 and Fa0/1 ports as well as the switchports on 3550
No switchport commands are configured however, the lights do not go on for both straight through or crossover cables. I tried connecting 1750 routers but same result. My goal is to have all the VLANS routed to the internet with configuring NAT translation the router.
vlan 10 ports 1-10 vlan 21 ports 11-20 vlan 30 port 21-30 vlan 40 ports 31-40 default vlan should be vlan 21
I have the servers, switch and router connected to vlan 21. Vlan 21 works great I can browse the internet, but I cannot ping any other vlans. router is connected to fa0/19
[code] Building configuration... Current configuration : 4833 bytes ! version 12.2 no service pad
I'm having some problems setting up vlans to talk to each other on a 3550-12T switch. Its quite a simple setup I have, but I need to split my network up.
Currently I have a network of 192.168.25.0 255.255.255.0 I want to create a new vlan network of 192.168.30.0 255.255.255.0 So I have configured my vlan1 (default vlan) to have an ip of 192.168.25.250 for getting to the management page
I have created a vlan2 of 192.168.30.1 255.255.255.0 ?I have a port 10 linked to one of my 3560G's?In port 9 which is on vlan2 I have my pc plugged in with a static ip of 192.168.30.50 from the router I can ping any device on 192.168.25.x.
I can not ping 192.168.30.1 (which is my vlan2) nor can i ping the PC.
I have enabled ip routing But I dont have a default route, this is becase we don't have a router on the network.
I've been working with these two Cisco devices in my home off and on for several months now but I just can't take it anymore, I'm about to throw them away and go back to Linksys router.
I have a Cisco 2600 Router with only one Ethernet card in it so I have to trunk from my 3550 Switch to that device. I'd like to have my ISP and all users plug into switch and all trunk back to the router's sub interfaces. Currently, I have started over...again, and am unable to simply get the router and switch to ping each other if I put sub-interfaces on the router. See my configs:
2600 ROUTER: Router#sho run Building configuration... Current configuration : 555 bytes [code]......
3550 SWITCH: Switch#sho run Building configuration... Current configuration : 2302 bytes ! version 12.2 [code]..........
Port F0/24 is in VLAN 1, as are all ports but Port F0/1 which is my desktop PC. I mocked it up in Packet Tracer and it works just fine. This is just a simple setup and I'm making sure I can ping between switch and router before I move to each next step.
The situation include 2 cisco routers an 2 switch 3550
so we have Router A in Vlan x access ----->Sw1----Trunk----Sw2<------Vlan y Access Router B I 've to enable rip1 on guys A and B ONLY !!! Avoiding any kind of tunnel I though it was all around fallBAck bridging ... but after days of tries ...
We're looking at implementing a new phone system which will use voice over ip. Currently we have a mixture of Cisco 3750 and Cisco 3550 switches which don't support power over ethernet. Its been suggested we could continue using the current switches and power the new phones using power adapters.
Int terms of implementing qos (we don't have any at the moment) for the voice will a Cisco 3550 be OK and will having a mixture of different models using 3550 and 3750 pose any challenges with the qos policy for the voice. I believe there are differences in that the Cisco 3550 doesn't support srr-queues but having little experience with qos I'm not sure what impact this will have if any?
I am having issues working on my QOS between 4510 and 3550 switch connecting on layer 3 through a service provider. I have class maps and policy map setup on both sides and then policy map attached to interfaces however i dont see any traffic matching in policy map on 3550 switch, i do see some traffic matching on 4510 but the speed with which its increasing has my doubts about it. When i make voip calls ( VOIP switches are sitting behind 3550 and are mainly 3550 pwr 24 port switches with phone ports configured for auto qos voip cisco-phone and trusting cos) i rarely see the RTP matching in class under policy map.
im trying to install a ios 12.2v on my switch. when the screen prompt it does not show me the user move symbol " SW1> ". all i see is " SW:" and from there i can not enter the commands to download from tftp server !
According to documentation Cisco RPS 675 should have support for Cisco 3750v2 switch(WS-C3750V2-48PS).What kind of cable should be used to connect them?Cisco RPS has 16 pins and 3750v2 has 22 pins.I could not find that type of cable,
we have two core swiches 6506 and around 55 cat 3550 switches. currently we are on the process of replacing the cat 3550 switches to 3750 switches.We need 10/1000/1000 speed, ip base image with upgrade options. Our up links from cat 3550s(sfps) are single mode and dual mode fiber mode with 1 gbps ports on core switch.
At present we are not upgrading to 10 gb modules on core. Spread over 15 floors each floor needs 2 up links(single mode , and dual mode). since cat 3750 sfps are smaller in size existing gibics cannot be used. Looking for the best option of cat 3750 switches with 1 gb up links which can be upgraded to 10 gb later when we replace the modle on core. Requirements:
1- Cat 3750 switches 55 in no with sfps for 1 gb up link (dual mode fiber and single mode fiber)
2- stacking option
3- 10/100/1000 speed
4- ip base image upgradable to ip service image
5- ipv6 compatibaility. Network is spread over 15 floors so from each floor we need two sfp up links 1 gbps using dual mode and single mode
-6-Should be upgradable to 10 gb in future when we upgrade the core modules
Or is it better to go for 10 gb module in core as well as edge switches ? if so what should be the modules?
I have one 3550 switch and i upgraded from 12.1 to 12.2(44)SE . But "tclsh" command is not enabled on this version. As per Cisco, 12.2(25)S is enough to enable TCL interpreter.
We have a metro Ethernet service, basically our WAN connection, that we use to connect 4 sites. This MOE service has a CIR of 200 Mbps, connected to a port on a 3550-12T running Version 12.1(22)EA5 at 1000 Mbps. We are exceeding our CIR at times during the day for short bursts which is causing the MOE switch to drop packets, which I suspect I am seeing manifest itself in some choppy VoIP conversations and dropped ICMP packets from our network monitoring software. I implemented policy maps to apply an outbound service policy to the interface connected to the MOE service, but I am not seeing any matches to the access lists or the service policy. I’m not sure if I am missing something or perhaps the IOS is not capable?
Below is the config for the service policy and some command output. Notice that there are hits on a statndard access list that is used for other purposes, but the extended access lists used for the class maps have no matches.
! class-map match-all REALTIME match access-group name REALTIME
confirm whether the Catalyst 3550 with IOS Rel. 12.2(44)SE is compliant with POE IEEE 802.3af? I see some conflicting informaiton on Cisco's web site. Before Release 12.1(22)EA2, Catalyst 3550 PoE-capable switches (without intelligent power management support) caused high-power powered devices that supported intelligent power management to operate in low-power mode. Devices in low-power mode are not fully functional.
IEEE 802.3af—The major features of this standard are powered-device discovery, power administration, disconnect detection, and optional powered-device power classification. For more information, see the standard.
1)Configured 3550 as layer 3 switch and create a default route to 192.168.2.254
2) Configured 2 static routes(for 2 vlan range traffic) and one default route to 192.168.3.254
3) ip pass through is not configured yet, still the public ip is configured at the isp router
1811 static route configs ------------------------------------ Ip route 0.0.0.0 0.0.0.0 192.168.3.254 Ip route 192.168.1.0 255.255.255.0 192.168.2.1 Ip route 10.0.1.0 255.255.255.0 192.168.2.1 3550 static route config -------------------------------------- Ip route 0.0.0.0 0.0.0.0 192.168.2.254
Testing results 1)All lan communications are working fine(inter vlan also), ping to all servers from router is getting and ping to outside public ips are getting from router,but not getting ping from switch 3550 to 192.168.3.254 and any of the public ips(internet).
I have an Cisco 3550 48 SMI running IOS (tm) C3550 Software (C3550-I9Q3L2-M), Version 12.1(13)EA1a. Software advisor says that I can only update to Version 12.1(22). The software download area tells me that the latest version is 12.2(44).
know if I could use the latest 12.2? Or has the hardware changed with the IOS versions?
