Switching

Can any one help.I have just got a 6506 with 2 Sup720 modules and think I must be missing something. If both Sup's are installed only one boots fully and the other boots to rommon. If you have just one installed it boots fine, then put then power dow...

I've seen approximately 90.000 input errors on a gigabit ethernet trunk port of a 4510 chassis. Configuration is as follows;!interface GigabitEthernet3/1 switchport trunk encapsulation dot1q switchport trunk native vlan 3 switchport mode trunk!The ot...

Hi, I noticed at a customer that, they configured "switchport mode trunk" on one side and "switchport mode dynamic desirable" on the other and huge input errors have been observed on the side which was configured as desirable. They modified the confi...

Hi, I have been trying to test NAT between offices that use the same LAN IP range. I based my config on another post in this forum.Below are the 2 configs:R0#sh runBuilding configuration...Current configuration : 950 bytes!version 12.4service timest...

I bought a new 3560 and the image does not support iRDP. This a protocol I need for a project. Which image do I need to download and how is it done without loosing the current config.

Hi,I have this config in my network, switchport trunk encapsulation dot1q switchport trunk native vlan 16 switchport mode trunk switchport voice vlan 201is it the same as configuring switchport voice vlan 201 switchport mode access switchport access...

Customer wishes to upgrade from the version 12.3(22) on a router 7204vxr to the version 12.4(11)T3. The feature set from the previous version is the "IP Plus" (image file is c7200-is-mz.123-22.bin). The memory size of the router is: DRAM:256 MB Flas...

A couple issues here, but I need some help figuring out what is best. Scenario is I have two 6513's, two 4510's and two 4507's. The 6513's are in a L3 core configuration with one L2 trunk between them. I have a L3 link to the 4510's and the 4507's...

Is it possible to define only this range of hosts: 192.168.80.200-254 /24 in standard ACL without entering each host per line?Thank you.ip access-list standard PAT permit 192.168.80.200 permit 192.168.80.201.. permit 192.168.80.254Any other ways?

The system light on a Cisco 3750 flashes continually when powered on.Any ideas?

I need to route two /25 subnets over the WAN. I'll have a 2950 connected to the 871 using native VLAN1 of course as well as one more additional VLAN. Can subinterfaces be created on the LAN interfaces on the 871, or must I "go up" to either an 1841...

Hi all, when we talk about networks and subnets, if I had network 10.112.0.0/16 , would my subnet then be called 10.112.1.0/24 ?