Switching

Hi all, in the cisco ios is it possible to permit a packet based on source and destination port ? I have only ever used them based on destination port, can anyone give me an example access list for this if possible ?

I am getting the following error from the log of a Cisco 7204:%ENVM-4-ENVWARN: +3.45 V measured at +3.55Please could somebody tell me what is the issue and how can it be resolved?Thanks

Hi ThereI have a 2811 'dte' router connected to a 'looped back' modem over a smart serial interface. The connection is up but the line protocol is down. Encap is HDLC. Can anyone give me any troublshooting tips to get the line protocol to up?Regards

Hi,i want to thank all those of you in advance for reading and or responding to my post. thx....Please take a look at the attached diagram, and let me know in your view would you perfer DHCP to be supplied by a Cisco device or Windows Server 2003?i c...

I am looking for any and all information on 6509 Inter-chassis configuration and documentation. Especially Sup720 configuration and a wiring diagram. Thanks.

Guys,Attached is a JPG of our STP topology for VLAN6, our NFS VLAN. We are running 2 6500 switches as core devices in each of our 2 Data Centers running PVST. We have noticed saturation on the trunk (labeled "A" in the diagram) between the two Core S...

We are not running any QoS policing on our 4507R's. However, we have recently noticed syslog messages being rate-limited, as below:Syslog logging: enabled (0 messages dropped, 43 messages rate-limited, 0 flushes, 0 overruns, xml disabled, filtering d...

Can anybody explain the information contained in this crashinfo file of a 3750 ?

I have a cisco 831 with about 40 users behind it. I need to limit throughput to certain stations by IP address. Is this possible? Using CAR maybe? My config is below:no service padservice timestamps debug uptimeservice timestamps log uptimeservice pa...

What is the purpose of the loopback interface?

Hello,We are using Cat 3550.We have tried to use the following config.mac access-list extended MAClist permit any anyclass-map match-any MAC match access-group name MAClistpolicy-map 5Megatunnel class MAC police 5000000 32000 exceed-action dropT...

We only have 1 vlan in my office.DHCP hands out 192.169.1.x addressesand some hosts are statically assignedto 192.168.21.xAll servers are on 192.168.1.x-staticWe noticed that the there seems to be an unusual delay going accessing files on the .21.x ...

Hi all,I've read that CEF per-destination load sharing is enabled by default on the 6500 switches. What global commands enables this ? Is there an 'interface' command needed as well? Here's the details of the switch IOS (tm) s72033_rp Software (s720...