Re: [gentoo-user] Local mail server

2020-07-30 Thread antlists
On 30/07/2020 00:23, james wrote: Very, Very interested in this thread. Another quesiton. If you have (2) blocks of IP6 address, can you use BGP4 (RFC 1771, 4271, 4632, 5678,5936 6198 etc ) and other RFC based standards  to manage routing and such multipath needs? Who enforces what carriers do

Re: [gentoo-user] Local mail server

2020-07-30 Thread Remco Rijnders
On Thu, Jul 30, 2020 at 10:05:46AM +0100, antlists wrote in : From what little I understand, IPv6 *enforces* CIDR. So, of the 64 network bits, maybe the first 16 bits are allocated to each high level allocator eg RIPE, ARIN etc. An ISP will then be allocated the next 16 bits, giving them a 32-b

Re: [gentoo-user] Local mail server

2020-07-30 Thread Remco Rijnders
Point is though, with IPv6 addresses are no longer a scarce commodity. The cost to an ISP to give you one IPv6 address (/128) is just the same as given you enough room for your own IPv4 internet (/64). Oops, brain freeze. A /64 gives you enough room for an IPv4 internet of IPv4 networks as IPv4

Re: [gentoo-user] Local mail server

2020-07-30 Thread antlists
On 30/07/2020 12:13, Remco Rijnders wrote: An IPv6 address is 128 bits in length. Usually an ISP allocates 64 bits to a single customer, allowing the systems on/behind that connection to automatically assign themselves an address based on their MAC address for example. Note that also allocations b

Re: [gentoo-user] Local mail server

2020-07-30 Thread Remco Rijnders
On Thu, Jul 30, 2020 at 01:48:05PM +0100, antlists wrote in : I don't think an ISP is supposed to allocate less ... I think your original message was open for multiple interpretations, or at least I read it as you saying there are 32 bit addresses the ISP allocates from. I now see the alternate

Re: [gentoo-user] Local mail server

2020-07-30 Thread antlists
On 30/07/2020 14:28, Remco Rijnders wrote: On Thu, Jul 30, 2020 at 01:48:05PM +0100, antlists wrote in : I don't think an ISP is supposed to allocate less ... I think your original message was open for multiple interpretations, or at least I read it as you saying there are 32 bit addresses the

Re: [gentoo-user] OT: Can a linux vmware guest tell if its host is CPU constrained?

2020-07-30 Thread Jeremi Piotrowski
On Thu, Jul 30, 2020 at 2:52 AM Adam Carter wrote: >> >> > So should I run something like: date ; time > > 100%CPU for a minute> ; date ? >> >> No, date will pull from your RTC, which is usually kept up to date with an >> asynchronous >> counter. >> >> First check GNU top(1) and look in the %Cpu

Re: [gentoo-user] Local mail server

2020-07-30 Thread Ralph Seichter
* antli...@youngman.org.uk: > An ISP will then be allocated the next 16 bits, giving them a 32-bit > address space to allocate to their customers - each ISP will have an > address space the size of IPv4?! ISPs can ask for several address spaces, each of which had a much, *much* larger address spa

Re: [gentoo-user] Re: Local mail server

2020-07-30 Thread Ralph Seichter
* Grant Edwards: > Pricing is based on what people are willing to pay. People are willing > to pay extra for a static IPv6 address, therefore static IPv6 > addresses cost extra. Somewhere, and some people. I'd be interested to hear from users who still need to pay extra for IPv6. Here in Germany