Switching

I just want to know that if extended IP access lists can do all tasks, I mean extended access lists have a lot of controlling parameters, then why people use Standard Access lists instead of Extended access lists.I just want to know that in which sce...

Dear all,I have a problem on my catalyst 6509 on which I would like to do the following things :I have some Vlans in which multicast is enabled.In tose Vlan theres is a router which is default router for equipements.I had enabled multicast routing be...

I have about 100 vlans in my network, what would be the best way to block intra vlans routing but allow the internet, the only option that I can see is to deploy separate acls to every subinterface and deny and permit particular traffic, but that inv...

This may or may not be a spanning tree problem but it's the first thing I'm thinking of.We're growing a pretty large switch network with a combination of managed and unmanaged switches (yes I know, bad idea, tell that to Finance) that use Catalyst sw...

I have a primarily Cisco network (300+ switches at this time) with a dozen or so HP Procurve devices at the edge.  I use VTP to propagate vlans created on my 6509 core router throughout the network to the edge.  I have one HP Procurve switch set up w...

Hello,We have a 2951 router running BGP whose routes we redistribute into EIGRP for an adjacent 3560 switch. The switches table shows all the redistributed routes (D EX) however the ASA to which that switch is connected to does not show the additiona...

Hi,cisco 6509 is not able to sync with unix ntp and windows 2008 server. earlier we have configured to win 2003 server (which is a domain controller) and it worked fine. recently our windows team has introduced win 2008 in the AD environment and my c...

Hi all,I've just been reading up on STP root guard, and whilst I'm sure there are plenty, I'm struggling to see scenario's where you would use this over bpdu guard.If you are talking about access ports accessible outside of a secured wiring closet, t...

Hi all,I have some DHCP trouble since I subnetted my network with a 2921.My clinets are in 172.16.2.0/23 and DHCP servers are in 172.16.5.0/24.Sometimes, randomly I guess, I get NACK from my DHCP server, and if I look into DHCP logs I got something l...

Hi all,  I am planing to deploy netformx in my network Can any one help me in downloading trail version of this tool.thanks in advance rgds ,pandian

Hi,What the different between using hsrp on vlan interface and on physical port (routed port) on Cisco 3750 Switch? Wha the benefits?Please advise.Regards,David

Hi,Yesterday my router was hangs and my services was stuck. I start the router hard booted and it works fine.This was second time i was facing this kind of scenario. The attached are the "show tech support" of the cisco router 2821. do help me in thi...