*Chris said: "but it seemed to take longer to start any web connection"*
In my experience this is almost always caused by lousy DNS service from
your ISP. Some ISP DNS servers are literally orders of magnitude slower
than the major public ones. Switch to OpenDNS (208.67.222.222 and
208.67.220.220) or Google's DNS (8.8.8.8 and 8.8.4.4) or any of a number of
others. Some ISPs have also taken to "helping" by redirecting typos for
their own purposes, or otherwise "inspecting" DNS traffic, which also slows
response. There's no reason you have to retain a DNS address provided by
your ISP, and if you choose to do so as a hedge against their blaming your
DNS choice should you have other problems, then demote their DNS servers to
third place or lower.
As Jan mentions, using a static, public-facing IP is only worthwhile if
you're running always-on services that will require it, and only if you
also are sure you understand how to properly set it up. Using one without
proper setup can actually make things worse for you. If you only need to
reach your own machine for occasional personal purposes, it's easier and
usually more effective to use DynDNS or a similar service that can do this
with your dynamically assigned IP.
---Scott
On Tue, Sep 26, 2017 at 11:23 AM ChrisB <ftog@xxxxxxxxxxxxxx> wrote:
> Thanks for your thoughts, Jan.
>
> I had a static IP for several years when it came free with the ISP. I
> then switched to BT for my ISP and had a dynamic IP, but it seemed to take
> longer to start any web connection, something that I put down to the
> system needing start the IP system (or something like that).
>
> So, when I moved to a new ISP, a Co-operative which is £20 a month cheaper
> than BT, and found that it would let me have a static IP for 50p a month I
> thought I’d try it. It works fine so far, now that I’ve set up my gateway
> properly.
>
> Chris
>
> > On 24 Sep 2017, at 20:22, Jan Steinman <Jan@xxxxxxxxxxxxxx> wrote:
> >
> >>
> >> Yesterday I switched to a static IP address (on the WAN, not my LAN)
> and this morning, after switching on my gateway everything is very slow.
> The BBC website appeared swiftly enough, but any link on that page was slow
> or stationary.
> >
> > Is there any reason in particular that you think you need a static IP?
> >
> > In general, it’s A Bad Idea(TM), unless you are running your own
> Internet server with multiple services. It gets even trickier if you are
> running a static IP in combination with other devices that use dynamic IPs
> and/or local (non-routed) IPs.
> >
> > One problem is often with too-long “time to live” on DNS servers and
> stale routing tables. Everyone between you and what you are trying to
> access have to flush you from their routing tables. It should resolve, over
> time, but if you ISP then changes your dynamic IP block, you will see the
> routing issue come up again.
> >
> > You really need to provide your own authoritative reverse-DNS record for
> the static IP, which makes things more complicated, too. There are lots of
> sites that won’t talk to you unless you have a proper reverse-DNS record.
> >
> > I’ve had at least one static IP since the 90s, and it is a pain in the
> butt that I would not consider, except that I also run my own web server,
> mail server, DNS server, VPN server, and other special services.
> >
> > I’m currently tracking down a problem where, every few weeks, all my
> dynamic IPs and local IPs stop working (the static IP continues to work),
> at which point, re-starting the ISP’s router fixes things, but it takes my
> static server “off the air” for several minutes while it re-boots. This
> seems to happen when my ISP changes my DHCP block. I try to explain that
> they need to flush the routing tables when they do that, but then someone
> in India tells me to turn it off and then on again. :-(
>
> --
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---
Scott
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