About matthewbutt

matthewbutt · 02-19-2013

Hi All,I hope this finds you well.We are having an issues with our Cisco network since re-structuring a week or so ago. In short, we have an Exchange Server (small business servers) on vLAN 101 which is a NAT'd vLAN/Subnet with IP Address 192.1681.1....

matthewbutt · 02-06-2013

Hi there,I hope this finds you well.We have a Cisco 3750G Core switch which has physical connections, each configured as trunks to two HP Access switches. The client who uses these access switches would like to put a link between the two, but this wo...

matthewbutt · 02-04-2013

Hi All,I hope this finds you well. A quick message to pick your brains if I may with a current issue I have on my Cisco 2921 router.In short, we have two physical interfaces - one internal (0/2), one external (0/0). The internal interface has several...

matthewbutt · 01-08-2013

Hi All,I hope this finds you well post the Christmas break, if only it had of been a little longer!A quick message to ask your advice on our current network setup. In short we provided dedicated hosting services to clients, each who have their own se...

matthewbutt · 02-19-2013

Hi there,I am not sure how you can "tell" a cPanel Web Server to send emails out using a particular IP Address.Naturally it uses the MX Records, which are actually running on an external DNS Service, to determine where to send emails to.For the recor...

matthewbutt · 02-19-2013

Hi there,The Exchange Server has a private IP Address as it is also a File Server (Small Business Server 2008) and this receives email fine from the outside world.The cPanel Web Server is on a pulic IP Adreess and again is serving content to the outs...

matthewbutt · 02-07-2013

Hi Dan,Apologies, I should have made the requirements clearer.We would like one of the core switch trunks to be active, and the other standby with the link between the two HP's always connected.This means one of the uplinks or one of the HP's can fai...

matthewbutt · 02-06-2013

Hi Dan,Apologies, both vLAN's to both switches.All the best,Matthew

matthewbutt · 02-06-2013

Hi Dan,Thanks for getting back to me.There are two vLAN's 305 and 104 running on the core (L3) which are specified to go down each trunk to the HP Access switches (L2).All the best,Matthew

Member Since	‎01-08-2013 09:32 AM
Date Last Visited	‎08-18-2017 03:56 AM
Posts	11

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User Activity

Port Forwarding Between vLAN's

Multiple Trunks from Core to Access Switches without Loop

NAT'd Subnet and Public Subnet on Same vLAN

Splitting Public Subnet to Stop IP Address Stealing (vLAN's / Subnets)

Port Forwarding Between vLAN's

Port Forwarding Between vLAN's

Multiple Trunks from Core to Access Switches without Loop

Multiple Trunks from Core to Access Switches without Loop

Multiple Trunks from Core to Access Switches without Loop