Switching

I'm new to Cisco devices and to my current job as network analyst. Mostly in an attempt to establish consistency and to ease identification, I'd like to change the hostname of most of our Cisco switches and routers. However, I don't want to create a...

Can anyone tell me exactly what the following SNMP traps alert to?snmp-server enable traps bridge andsnmp-server enable traps bridge topologychangeI believe they should alert to topology change and change in state from forwarding to blocking etc.. bu...

Hi,At "site A" I have a 2955S-12 with a 100Base-LX(SM) uplink to "site B" over 800m SM fiber run. At "site B" I have a 3750G-12S. My question, Is there an SFP that will allow me to step down my 3750G Gig port down to 100mb over a SM fiber ?GLC-GE-100...

I have a network with 9 switches, 3 of which are Cisco Express 500's. On those 3 switches I get a notification message once or twice a day stating: "Dynamic Host Configuration Protocol (DHCP) reply messages dropped for non-existing or disconnected de...

I just setup an 871 router, but cannot do any dns resolution out this interface. I am using MS Server 2003 R2 as my local DNS server. It uses the root dns servers. Also, I would like for people with laptops to use additional dns servers. If I set sp...

Helo,(sorry for my poor english)when i execute the command :show interface vlan100in a switch layer 3 like a 3750what's the counters (input or output counters)indicate for this virtual interface? is it the routed trafic? other?Where can i find a desc...

Is it possible to have multiple local destination SPAN ports for a single local source SPAN port on a 2960G switch running IOS 12.2(25)SEE3? and if not - does anyone know a workaround? Thanks.

The cisco router we are using sends TCP syn packets with incorrect checksum. The error occurs when the packet is both SNATed and DNATed on the router. Has someone seen this before? Is there an option to force checksum recalculation?The problem is tha...

Could someone please confirm if the IOS release 12.25SE which supports 48 etherchannels instead of the legacy 12 on earlier versions is supported on non-enhanced 3750 switches? Thanks

hi all I have cisco 4506 switch with WS-X4306-GB 1000BaseX module and GBIC WS-G5486.can any one tell me is it supported to my Cisco Catalyst 2960G-48TC-L switch having 1000BASE-LX fiber port with SFP GLC-LH-SM( 1000BASE-LX/LH).Also is it supported ...

I have an AS 540 with four routers Frances is connected to Meg; Meg to Peter, Peter to Lois.Lois also participates in AS 790 which runs OSPF. Lois's OSPF neighbors are Carter and Chris.In Lois's OSPF process, I entered "redistribute eigrp 540."Then I...

Good day, I would apreciate it if somebody would like to help me set up our new router. The ISP is not very helpful. I got it connected to the net with some functionalty but I can not send mail througt the router it is tellingme something like Rela...

Every device connected to a network is a node. Wikipedia says that every host is a node. And that every host is a computer on a network.I want to know if a network printer is also a host, or just a node? And while on this subject, can it still be cal...