Cisco Switches :: Reconfigure Port Mirroring From Port FE17 To FE3 / SF200 Web Interface Crash
Mar 14, 2013
i was able to configure (via SF200 web interface) a port mirroring from port FE17 to FE7.i have supressed this port mirroring.when i try to reconfigure a port mirroring from port FE17 to FE3. The SF200 web interface crash. the SF200 seems to reboot.
i have updated the SF200 firmware from V1.1.2.0 to V1.1.2.9.44 when i was able to configure (via SF200 web interface) a port mirroring from port FE17 to FE7.But after having suppressed this port mirroring again, i was not able to reconfigure a new port mirroring from port FE1 to FE3 (the SF200 hangs).
i have also tried to return to default factory setting but this does not solve the issue.i am working on SF200-24P
i was able to configure (via SF200 web interface) a port mapping from port FE17 to FE7.i have supressed this port mapping.
when i try to reconfigure a port mapping from port FE17 to FE3. The SF200 web interface crash. the SF200 seems to reboot.
i have updated the SF200 firmware from V1.1.2.0 to V1.1.2.9.44.when i was able to configure (via SF200 web interface) a port mapping from port FE17 to FE7.But after having suppressed this port mapping again, i was not able to reconfigure a new port mapping from port FE1 to FE3 (the SF200 hangs).
I have a Cisco Catalyst 3750X switch, and I have configured port mirroring on it. Traffic from 12 of the 1G ports will be mirrored to both 10G ports, and I have connected both 10G ports to a server that captures the traffic.
Currently, I have one of the 12 1G ports connected to another server that replays a pcap file once at maximum speed (i.e. option -t in tcpreplay). I thought that this setup means I should get twice the number of packets (and rate) from the two 10G ports. However, I noticed that although the original pcap file contains 4288 packets, the number of packets from the two 10G ports varies between 31000 to 34000 packets, which is about 7 to 8 times the original number of packets. Why am I getting more than twice the amount of traffic, and why does the output vary?
I have created a mirror to copy all packets from Interface gi1 to interface gi28. I don't see any port 80 traffic, or 443 or any revelant traffic. I see mostly broadcast from other devices. I have a security device that is logging all the copied packets from my firewall for malware/IPS, etc inspection.Right now I have it monitoring vlan 1 in the hope that it would resolve this issue but I see no change.
I'm troubleshooting a LAN issue I have, and I wanted to hook up wireshark to record traffic over the course of a couple of hours for later diagnostics. I went into the web administration interface, clicked Administration > Diagnostics > Port and VLAN Mirroring, and added a port mirror from the port I wanted to watch to a port to which I had connected a laptop. I picked the Tx and Rx options, and clicked Apply.I did receive lots of traffic in wireshark, but I noticed immediately that the server on the port I had mirrored was suddenly unavailable on the network -- pings timed out. This lasted until I removed the mirror, then the server was suddenly reachable once again.Does this feature not work the way I had thought it does? What I saw looked more like a forward than what I would call a mirror. The documentation leads me to believe mirroring is intended to be used in just the way I was attempting to use it.
I have been told there is a limit (8) on the number of source ports that can be mirrored to a given destination port. I can find no specifications or other documentation to corroborate this claim. Any factual data to confirm or refute this claim?
Recently our company purchased 3 Lynksys SGE2010p, At the moment they work as a stack but as we are implementing UCCX we need to mirror 15 ports but during the provisioning i've noticed that the limit is 8 ports per stack. I'm wondering whether this is a known issue or just a known limitation . I believe that most probably i'll need to move back to stand alone mode so i could configure 8 mirrored ports per switch.
If switches on a network doesn't support remote port mirroring and only local port mirroring, What are the options to still capture all the traffic from all switches on 1 single core switch?
we just received 5 new SF200-48 Smart Switches for small business. I noticed only way I can configure them is by using the web gui. Is there a way to enable good old CLI?
I'm trying to setup port mirroring on a Cisco ASA 5510, but when I try to use the switchport monitor command, that command is not recognized.I've selected what interface I want to configure (conf-if), but the switchport command seems to not be part of the IOS.I'm running ASA version 8.2(1)
I've just installed 2 of these in my workplace on a PLC network.I'm now looking to set one of the ports up as my diagnostic port and would like to be able to mirror any of the other ports to this port.I believe it is called SPAN on Cisco switches.The only reference I can find to it is configuring via Telnet which I haven't got a clue about.On my old Wiedmuller switches it was just a few clicks away.
I am trying to configure a SNORT IDS system running on a physical machine using Linux as the base OS. I have a small lab network setup with 3 VLANs, a 3548 switch and a 2611 router acting as the router on a stick/inter-vlan router. My goal is to setup SNORT as a host-based IDS system. To do that I know I need to use the "port monitor" command on the switch and I have tested this and it works fine only when the snort system and the traffic I want to monitor reside on the same VLAN.My problem is I want to be able to monitor a trunk link betwee the switch and router to see traffic coming from my 3 VLANs which contain servers. My goal is to run attacks on the servers to test SNORT's effectiveness.
Relevant information from my configuration: interface fa 0/1 on switch is the trunk like carry 3 vlans to the router On the switch:
int fa 0/1 switchport mode trunk int fa 0/5 port monitor fa 0/1 switchport mode access
The switch will not allow me to configure fa 0/5 as a trunk, only can be an access port.So right now, SNORT does not see any traffic other than traffic from my router to the switch. I assume because this is going over the native VLAN (1 in this case) and that is the same VLAN that SNORT box resides on on interface fa 0/5. So I know the span is working to an extent, but traffic from my other VLANs (server to server traffic) does not show on SNORT at all.I have done some research on Cisco.com and see the following seemingly contradicting information:
VLAN Filtering When you monitor a trunk port as a source port, all VLANs active on the trunk are monitored by default. You can use VLAN filtering in order to limit SPAN traffic monitoring on trunk source ports to specific VLANs Then I see, under the section for the 3500 series: A monitor port cannot be a dynamic-access port or a trunk port. However, a static-access port can monitor a VLAN on a trunk, a multi-VLAN, or a dynamic-access port. The VLAN that is monitored is the one that is associated with the static-access port.
My question is, does that mean the 3548 cannot support spanning a trunk link and having all VLANs on that trunk be monitored correctly to the monitoring port? I know the 3548 is old, but it is the only thing right now I have to work with. I could put the SNORT box inline on the network, but that is another mess in itself.
I have cisco 2651. It contains two FastEthernet interfaces: Fa0/0, Fa0/1.Fa0/1 has an ip address. Fa0/0 hasn't an ip address.I need to create monitor session from source Fa0/1 to destination Fa0/0. Then i want to connect my notebook to Fa0/0 to analyze some traffic from port Fa0/1
I´m a IOS CLI fanatic. Its the first tiem that I have to configure a SB switch. Its very confusing, I want setup a voice vlan id as 200. but I don see that this value change when I try to apply the smartport macro to the interface.Its possible change a smartport macro?
we have cisco 6500 series switch and configured port channel on both switches with 2 gig interfaces on both switches.
When we enable the port channel mode to as desirable to the interfaces on both side and applied the port channel to physical interfaces switch will go down and if we remove on any one side switch will come up. we have enabled globally the following commands. [code]
I have one Catalyst 6509E chassis and two SUP720. The bootup sequence on SUP 720 (standby hot) failed . Messages that appear on SUP 720, on the console port indicate o software crash. I don't have a flash card in SUP720.
This is the bootup process:
System Bootstrap, Version 8.5(3) Copyright (c) 1994-2008 by cisco Systems, Inc. Cat6k-Sup720/SP processor with 1048576 Kbytes of main memory
We recently upgraded our bandwidth and I have to change the ip address on our ASA 5510. I just want to make sure that I am doing it right. All I will need to do is open up the ASDM and under confiugration go to interfaces and make the needed changes to the outside interface. Then under routing I will make the gateway IP change on the outside interface.
I want to make an offer for a public tender for SF200 Switches (P/Ns SLM224GT and SLM248GT). The end user is already using Cat 6 cables and someone from the committee told that these Switches does not support Cat 6 cables and that the SLM224GT doesn't work correctly with an existing SG200 (SLM2008T) switch.
what would be causing my management HTTPS session to a SF200-24 to suddenly timeout? I receive "The session has been timed out. You may log in again" few mins after logging into to switch.Sometime it happens within 45seconds, other times after 3mins, timouts are not consistent. And, i was not idle when it timed-out. My HTTPs idle time-out is set for 10mins.
I had a continuous PING going to managment IP, and it did not drop any pings when session timed-out.Interface stats are also clean. I tried IE, FireFox, Chrome and all are timming out.
I've changed the HTTP default idle-time out from 1 to 10 and my HTTPs stopped timing out. Management Access Authentication is cleary set for HTTPs, and the Idle-timeout for HTTPs was set for 10mins since install. Yet, adjusting the HTTP idle-timeout cleared the issue.
We have been deploying Cisco SF200-24P switches for our systems for over a year now. They connect to a Cisco 881 router. In many cases we are also deploying Cisco AP541s.Over the last few months, on an intermittent basis, the switches will simply freeze, blocking all traffic flow. The power LED also goes dark. It appears the switch has frozen. The only thing that seems to revive the switch is a hard reboot by pulling the power cord. In the last couple of weeks, one site in particular has gone down a handful of times. That client of our is fed up. Our patience is running thin too.
I cannot see any indications in the logs to any event that might give a clue as to the problem. We definitely see this problem with the 1.2.7.76 firmware and the 1.2.9.44 (latest as of typing this). Not sure if with earlier 1.1.2 firmware.Without a fix, we likely will have to change switches and possibly vendors as we need a reliable switch.I see some vague references to a similar problem. And one reference to a SG300 series having what sounds like the same issue.
Vlan 10 is the management VLAN, and it uplinks to our border router.Vlan 20 is the workstation VLAN, and all workstations point to the switch as their default GW? Vlan 30 is the ip phone VLAN, and all phones use this as their gateway.
I would like to put a LAG between said switches, we have some servers on the ip phone switch that need to be accessed by the workstation clients, and the single 100mb link through the router is probably not going to be enough.As I understand it, because the switches have different networks on them, a simple lag will not work. I did create a lag, and assign ip addresses to each side, however in that mode, it doesn't appear I can block vlan 10 from transiting the LAG, and with out that block I will end up with a logical loop, and spanning-tree will block one of the uplinks, or the LAG itself.
We are looking to setup a guest WLAN, and I have a dedicated port connected to our backup cable modem. On our old 4400 WLC I had specific ports assigned to interfaces. We upgraded to a 5508, and for the life of me I cannot figure out where to do this. On the 5508, under interfaces, there is no option to list a port under Physical Information. Our 5508 is running 7.2.111.3 software.
I am facing a strange issue with OSPF configuration. i have a server in DMZ and ports 22 & 9202 are opened. when some one does a telnet on port 22 it works and the same can be seen in sh ip cache flow command, but when we do a telnet on port 9202, the dest int is showing as NULL. i have OSFP & BGP configured on the same router and redistribution is also enabled.
MPLS Router (BGP & OSPF running) --> FW (DMZ int is configured, OSPF running) --> LAN (Inside, OSPF running).
when i execute sh ip ospf command on MPLS router, i couldnt see any route with Null interface. from MPLS router i am able to telnet on port 22 but not on 9202. also no packets hit my FW and the dest int shows as Null in sh ip cache flow command. but when i do a telnet on someother port, i can see the packets hitting my FW. why only traffic to that particular server on port 9202 is getting blcoked? also why the packets are hitting NULL interfcace when it desnt exists?
