Cisco Switching/Routing :: Ripv2 Possible To Map Statistically Mac Address To Some Ports
Nov 19, 2012
suppose i have one switch and many RIPv2 routers connected to it.ripv2 destination address is 224.0.0.9 that is mapped to 0100:5e00:0009 normally the switch will send this frame to all ethernet ports
is there a way to take benefit from the multicast address so that the frame will be sent only to the RIP routers.i know it is possible to map staticlly the mac address to some ports but is there any dynamic solution also?
I started using RIPv2 on Packet Tracer. I got two subnets to connect with two routers. After I completed that, I decided to add a third router. How to setup the Routing Table for atleast R3 ?
I am having a problem reaching a soho linksys e1000 router through a second hop cisco 2900 router.Here is a brief topology of the network: I am using OSPF area 100 for all networks except for
192.168.2.0 on R1 to E1000 which is RIPv2 R1 directly connects to R2 with a point-to-point serial on network 192.168.12.0 /30 with ip 192.168.1.13 R1 directly connects to a a switchport using network 192.168.2.0 /24 with ip 192.168.1.75 R3 directly connects to a switchport using network 192.168.1.128.0 /25 with ip 192.168.1.129 R3 directly connects to a different cisco router using ethernet on network 192.168.1.0 with ip 192.168.1.1 E1000 directly connects to a switchport using network 192.168.2.0 /24 with ip 192.168.2.1
The switch has a vlan ip on 192.168.1.128 /25?I can ping from R1 to E1000?I can ping from R3 to R1 192.168.2.75? I can't ping from R3 to E1000 192.168.2.1?show ip route on R2 indicates that network 192.168.2.0 is reachable via the serial connection on 192.168.1.12?I have redistributed rip to ospf area 100 and OSPF to RIP on R1?I am wondering why R1 can reach E1000 on network 192.168.2.0, and why R3 can reach R1s 192.168.2.0 newtork, but R3 can't reach the E1000.There is an R2 router than can reach R1 and also cannot reach E1000, but I assume it's for the same reasons R3 can't, so I've omitted the remainder of that topology for this question.
I have been reading the postings on this site trying to retrieve the MAC address for the client devices (computers, printers) attached to our switches. We have approximately 500 switches and I need to map the mac address to the switch. It appears the OID information is for SNMP v2. We are restricted to using only SNMP v3. I have tried using the Cisco SNMP Object Navigator without any success.
In my environment we have 3750x switches running ios 15.0 (1) SE2. We have port security mac address sticky configured on all our switch ports. I noticed that we have several interfaces (on different switches) that are up but have not captured the MAC address from the workstation. Here is one example:
We have upgraded our gateway router from a Cisco Linksys RVL200 to a Cisco 861, this is a big jump from a GUI driven system to IOS CLi and i'm having issue finding my feet. I tried the Cisco CP system but it didn't work so I'm going to configure it with IOS commands. I wish to replicate the current configuration on the 200 with the following setup.
I have created a DHCP pool but i am unable to configure the FastEthernet ports to hand out address automatically, the pool is called USERS with range 192.168.1.30 -> 192.168.1.253.How do I work out the client-identifier for a DHCP client, I don't want to plug this into the network and manual reconnect all the PC's just to get the ID then make a static route.
saw that we can secure ripv2 via authentication (simple and MD5) ,i undertand that simple is not quite secure because we can see the plain text when capturing RIP packets
however even with MD5 i can see the authentication data (output of MD5) and i think hacker can copy it and paste it in one RIP packet that he will generate !! isn't it ? so how much MD5 is secure ?
I am working on a network that has four nodes/Currently I have RIP running in between R1 and R2, and between R3 and R2. These are shared and R1 can access R3 just fine.R3 is running BGP and communicating with R4.R3 can ping everything in R4's network with no difficulty.Currently R3 is not rebroadcasting the BGP routes into RIPv2 as needed.I have tried clearing my BGP session and am still not able to get the BGP routes from R4 to R1.
I like the SG-300 switches for SMB and I'd like use them in our network. Design is quite simple just 6 SG-300 switches connected to one central switch using SFP ports (using 2 port trunks) so I need 12 SFP ports and this is my question. Could you recomend me switch with more then 12 SFP ports from Cisco for this SMB network ? I don't know all the Cisco product lines and I can't find it.
I'm currently having a problem getting the ports on a 3560CPD (ports 1-8) to power on and establish connectivity. I have them hookedup and TURNED on by a 3560 PoE 8 port switch via the uplink ports. I can console into the CPD switch just fine and getting it configured.. but when I connect anything to the ports (1-8) I'm not getting any indicator lights.
The default Gateway and DHCP server is connected to port 1 of the switch. I have various other devices on the network plugged into other ports on the switch.I want port 1 to communicate with every port on the switch, but don't want the other ports to be able to see eachother unless I specifically allow them to. For example, port 5 should see port 1, and 7, but nothing else.Everything needs to be in the same subnet. With the older Dlink switches I am used to this feature is called "Port Segmentation" but I see no such option in this switch. I have been playing with the VLAN settings but so far I have not been able to achieve this.
I have a SM-ES3G-16-P in a 2951. Is there any way that the service module interfaces can be transparent to the host router. Essentially I want the SM to act like an HWIC-1GE .. only with more ports!
How i can configure the SFP Ports on my 4500 SERIES CHASSIS with other SFP ports on the connecting switch. I want to connect 15 switches via GLC=SX=MM to my 4506E sfp card.
I have a statck of 4 2960s switches, with POE powered access points on 2 of them. All of the access points appear to be functioning normally. For some reason, on 3 interfaces connected to access points, I get the following when issuing show interfaces status:
Gi3/0/9 connected: T 7 a-full a-1000 10/100/1000BaseTX ^
My question is regarding the "T" in the status field. I can't find any documentation on this.
where 192.168.1.150 is my server (that hosts SQL server and that I want to be able to connect to remotely using VNC) and GigabitEthernet0 is my configured WAN interface.
When I try to connect from an external client I get the error: "Failed to connect to server..." Is this a firewall issue? How do I get round it? The 819 is the only router/firewall in my network.
I have an FTP server that sits behind a cisco 1801 router.But now i want to add in FTP ports 21 and 20. I have added them in but i cant get it working via ftp.If i plug into the LAN and give my laptop an ip address on the same range as the server (192.168.2.100) then FTP works fine -
I have hardcoded 1GB ports on 3750X to 1000 and full duplex for all servers connected. THe ports are not coming up with this speed and duplex settings. If I configure them to 100, I am able to see the port is up. Whereas if i connect the same servers to 2950 switches, i can see the ports working fine with 1000 speed ..we have tried with the latest universal IOS as well
I have a cisco 6509 switch in which i have 2 SUPs. I am using 3 Qty. of WS-X6748-GE-TX in the same switch. First 24 ports of module 1 and are not working. I replace the faulty moldule with the working one but now the new (good) module's first 12 ports stopped working. But when I insert the good card (the replaced one with the faulty) in other chassis it works fine.
I just purchased an SG300-10 (negular, non-POE) and planning on using it with no special configuratinos initially. Longer term, will be using VLAN and QOS for VOIP.What I would like to know is if ports 9 & 10 can be used as standard copper cat5e ports, or are they only useful for special purposes? When I hookup my router/firewall to port 1 it all appears to work. If I hook it up to 9 or 10, the port lights do not come on and it doesn't work. I read that ports 9 & 10 don't have POE on the POE switch, but I assumed that all 10 ports would function with cat5e?
I have installed a WS-X4448-GB-RJ45 on a 4503 chasis. I could not get input or output rate, just shows 0 bit/seg wether or not is forwarding traffic. I would like to know if I have to make any configuration or workaround. The IOS version is 12.2(37)SG1.
This has been happening repeatedly time to time! we just replace the part! But now it has come to trouble us again.It happening only in one module like 6 to 10 ports wont work.
we run IOS cat4500e-universalk9.SPA.03.02.00.SG.150-2.SG.bin will there be any bug in it?
the nexus 7k or 5k can be devided into 4 virtual devices ( using vdc)and making 8 uplink ports in the 2k will allow us to use the extender for all the 4 vdc's with 2 uplinks ( for redundancy ) from each vdc
I have a switch WS-C3750E-48PD, I had two cameras that use 15.4 W in these ports and two days ago these ports go down, now the ports don't deliver PoE but are good when connect a computer.
SWP-D302-1-1#show power inline Module Available Used Remaining (Watts) (Watts) (Watts)
I was viewing the 3560x switch datasheet and i need network module C3KX-NM-10G. I have dark fiber with over 12 km distance to i guess i will be needing SFP EX for single mode.
My SG200-50P Switch Log appears as follows with Random ports going up and down. I am trying to find out if this links to another problem I'm having with a Client Server software locking up on the client end. The hardware, thin clients and desktops, are working and have checked all sleep and power settings. All items in working order, now I'm wondering about the switch
New to Cisco and want to know if I can segment a port. I have two v lans. I have one internet connection at the opposite end of the building. Can the port the internet is connected to serve both V lans?
We currently have Cisco WS-X6708-10GE blade installed in our Cisco 7606-S switch. Each of the ports have a X2-10GB-SR tranciever. When I look at the port with the "sh int tengig xx" command I see the following:
! TenGigabitEthernet 4/1 is up, line protocol is up (connected) Hardware is c7600 10Gb 802.3, address is 001c.b0ca.75c0 ! TenGigabitEthernet 4/2 is up, line protocol is up (connected) Hardware is c7600 10Gb 802.3, address is 001c..b0ca.75c0(code)
