Trevor Wade's Blog

We got our Licences from VMware this week; and the first cab of the ranks was installing VCenter Server.

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During the last week, we have been busy migrating our POS test VM’s from a mixed Hyper-V/VMware server infrastructure to a VMware ESX environment. The majority of our virtual testing environment was run off a single hyper-v server, so the method used for these virtual servers would be P2V, as convertor 4 cannot perform V2V from hyper-v.

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Recently a POS customer wanted to install another ADSL connection at one of their main sites. They wanted this second connection in order to segment some internet connected services off their old connection and onto the new ADSL connection, as these services where saturating the old connection on uploads. Quality of service (QOS) was discussed, but was rejected on the basis that these services really needed the majority of the upload speed available in order to function correctly. Given the requirements listed by the Customer we drafted some solutions with various levels of redundancy and price tags. As our they wanted to keep the solution cost low and were not concerned by redundancy they chose the cheapest option, which was to purchase another ADSL Card and utilise it in their current Router.

The Configuration to allow this single router, two ADSL cards was based on Cisco’s implementation of “policy based routing”.

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For a recent customer install of our point of sale products Amicus Retail (POS) and Amicus PDA. The customer requested that the wireless and Ethernet interfaces sit on the same IP subnet.

Normally the 800 series routers are configured with NAT between the WAN and VLAN interfaces, for this setup NAT will be performed between the WAN and a bridging interface. This then allows the VLAN and wireless interfaces to be bridged via this bridging group, thus both interfaces can be placed on the same IP subnet.
The Cisco router used in this example is an 877W router, which has an ADSL interface for it’s WAN Connection. The configuration for other routers in the wireless 800 series range will follow a similar process for the VLAN, Wireless and bridging interfaces, but the WAN interfaces will be model specific.

Configuration of the ADSL dialer interface:
This interface is configured as the external interface for NAT via the “IP Nat outside” command.

Interface Dialer0

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