Teksavvy cable modems

[James Knott]

Ansar Mohammed wrote:
> Thats pretty much my exact configuration.One additional note, I am
> using 801.q VLANs. If you are having issues getting the GS108E to work
> ping me offline and I will show you my config. I do have VLAN trunking
> enabled.
>
> I tested the VLANs without the router and they appear to be properly
> configured.
>
> I guess the fundamental questions here are
> 1. If I plug my Cable modem and firewall into a hub or switch, will
> they work just as if i connected them "back to back". i.e. I am issued
> a non RFC 1918 address and I am "on" the internet.
> 2. If I plug my cable modem onto a network segment with more than one
> system that is configured with DHCP how many IP Addresses will
> Teksavvy issue to me?

The fundemental question is how is the port the modem is connected to 
configured?  If a "trunk" port, then it will passs VLAN tags, which may 
confuse the modem.  If an "edge" or "access" port, then it's assigned to 
a specific VLAN and will not pass the tag to the modem.

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