Switching

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I have a 6509 with many VLANs and a seperate DHCP server to provide addresses.  I need to create an additional VLAN (VLAN 20) and I would like to use the 6509 as the DHCP Server for the new VLAN. I know to set up:ip dhcp excluded-address 20.20.20.1 2...

Hi Forums,i am new on the CISCO IOS.. I am configuring my cisco 1841 with hwic-1t serial port but i have problems with nat for my LAN.The router "pings" all IP addresses but all LAN doesn't navigate. Where is my mistake ?interface Loopback0 descripti...

stemond79 by Level 1
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One of my main routers is getting a bunch of buffer misses, resulting in packet drops.  I have pasted output below:Genoa-C3845-Rtr#  sh buffBuffer elements:     1117 in free list (1119 max allowed)     445357378 hits, 0 misses, 619 createdPublic buff...

Concept question.  In theory, if you have a daisy chained switch with a trunk inbetween where one end has allowed vlans specificed, the other end does not. WIll the VLAN traffic pass without fail?  Is that essentially allowing all VLANS both ways? IE...

I have a 3750 switch that bridges our corporate office to our Ethernet Network. 1- The port that bridges corporate office to the Ethernet Network is a L3 interface.2- The port went into err-disable state, their was no recovery so the interface stayed...

Hello,How is it possible to detect/locate/discover a duplicate IP address in a network (LAN)?I have recently found in one of my LAN (remote site) that a switch has the same address as the virtual VRRP (adress of my two WAN devices). I had often many ...

Ayad by Level 1
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I'm planning to run multiarea ospf on cisco 3750 switch as a redundant path. I'm using 6500 switch for my primary path. Both 6500 and 3750 do ABR and ASBR.Has any one experience technical problem running multi area ospf on 3750 switch? I want to put ...

zappo0305 by Level 1
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I have a 3560 series switch and was wondering about powering the unit 12VDC.  I will be mounting this in a solar site for canopy wireless Internet.  I do not have a inverter for AC power at this time.  I would like to keep this site DC.  The male por...