North American Network Operators Group
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Re: v6 subnet size for DSL & leased line customers
- From: Florian Weimer
- Date: Wed Dec 26 11:41:13 2007
* Leo Bicknell:
> In a message written on Tue, Dec 25, 2007 at 12:43:45AM -0500, Kevin Loch wrote:
>> RA is a shotgun. All hosts on a segment get the same gateway. I have
>> no idea what a host on multiple segments with different gateways would
>> do. Hosting environments can get complex thanks to customer
>
> I would like to point out that in IPv4 we have ICMP Router
> Advertisement messages. I have never seen them used on a production
> network. I know one of the worries is security, that a compromised host
> could send out advertisements, drawing traffic to it that it can then
> snoop and pass on to the real gateway.
DHCP and ARP face the same issue. That's why "one host per subnet" is
so appealing.
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