Hi every body!Here is what my book says:" you can also configure the switch to use dhcp option 82, the dhcp relay agent information option,which is described in rfc 3046. when a dhcp request in intercepted on an untrusted port,the switch adds its own...
Hi every body! Let say host gets an ip address from dhcp server with lease=20 days.Let say the host is unplugged , will dhcp server reserve the ip address for 20 days?thanks a lot!
Looking for real world use of these features.UUFB -unknown unicast flood blockingUUMB -unknown multicast flood blockingWhen a new device initially connects to a switch port, the devices MAC address is unknown so by default the switch MUST add this ne...
Hi,Please advice and suggest ....I have 4-sites all connected with each other.** Site A is connected with Site B withTwo physical links 10MB and 15MB** Site A is connected with Site C withTwo physical links 8MB and 10MB** Site A is connected with Sit...
HI every body! how do we configure router or L3 switch to behave as dhcp relay agent?thanks a lot!
HiI'm having a senior moment. Which way does storm control work on an interface ? Does it monitor incoming broadcasts and not pass them to the bus or outgoing broadcasts and not send them on the wire ?The issue is if you want to protect a server do y...
We're about to plan the deployment of some new virtual machines, based on vmware.Switching is based on cat6500/sup72 running native IOS.Virtual machines should be deployed on several VLANs.just thinking of putting 4 netcards on server:- 1 for managem...
During a CatOS to IOS conversion we experienced a power failure - :(After we recovered from the power failure, the switch boots into the SP rommon mode.Issuing the "boot" command (rommon> boot) the switch boots to the RP mode, reads the new IOS image...
Hello, We have C6513 with Dual Sup 720 + MSFC3. There is one HSRP group configured on about 30 VLANs. On all the VLANs the HSRP shows that primary MSFC is the active and the second MSFC is standby except one group which shows active on both.Any ide...
I have a 3750, with 12.2(40)se on it. When I try and upgrade I get an out of space message. I'm unable to delete the bin file that is on the switch.
HI every body!I was reading about DHCP snooping. That is what my cisco book says:" When dhcp snooping is enabled, switch ports are categorised as trusted or untrusted. Legitimate dhcp servers can be found on trusted ports,whereas all other hosts sit ...
Dear all, I spent almost a day in searching for the correct way to set up SNMP in cisco, but all I can find is setting the community for a traps receiver, which results that I can not send requests.May I ask if any one can help me, so I can snmpwalk ...
Hi!I have 7600 config:gw#sh run int gi1/31Building configuration...Current configuration : 175 bytes!interface GigabitEthernet1/31 switchport switchport trunk encapsulation dot1q switchport trunk native vlan 6 switchport trunk allowed vlan 6 switchpo...
I need to be able to do the following two things: - reset device to factory, I tried to reset it and know I get a "permission denied" error when I try to "copy tftp running-config" - how to fix the Permission denied error ......Please help
Trying to connect a Catalyst 3560 to a Foundry SX1600.If I put port Fa 0/1 in VLAN 10 (Cisco) and unttag eth 1/1 to VLAN 101 (Foundry we get VLAN 101 blocked with inconsistent port type errors on the 3560. This setup puts both ports as access ports....
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