Re: [opensuse] a very weird WiFi/HTTPS combo bug
On Sat, Feb 14, 2009 at 6:16 PM, Boris Epstein <borepstein@gmail.com> wrote:
On Sat, Feb 14, 2009 at 6:14 PM, James Knott <james.knott@rogers.com> wrote:
Anton Aylward wrote:
James Knott said the following on 02/13/2009 09:50 PM:
I thought the "don't fragment" was a control bit in the IP header and if a router couldn't pass it without fragmenting, it was supposed to return an ICMP message back to the source.
That is quite correct, it is supposed to.
However many machines these days are configured to ignore all ICMP messages regardless.
This, apparently, started with the good reasons why _some_ ICMP messages should be ignored but sadly a lot of people were not savvy enough to realise that there are ICMP messages that serve an _essential_ purpose.
You can still find "advice" on the web to turn *ALL* ICMP off! *sigh*
Check all the config along the route, or better still, use wireshark on each segment to see what is *really* going on.
Regardless, if the OP is having problems with WiFi and not ethernet, then I'd suspect a WiFi problem.
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Not necessarily - the problem may have had to do with WiFi routers. They were most likely the piece that would cut the transmission. Boris. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Boris Epstein wrote:
On Sat, Feb 14, 2009 at 6:16 PM, Boris Epstein <borepstein@gmail.com> wrote:
On Sat, Feb 14, 2009 at 6:14 PM, James Knott <james.knott@rogers.com> wrote:
Anton Aylward wrote:
James Knott said the following on 02/13/2009 09:50 PM:
I thought the "don't fragment" was a control bit in the IP header and if a router couldn't pass it without fragmenting, it was supposed to return an ICMP message back to the source.
That is quite correct, it is supposed to.
However many machines these days are configured to ignore all ICMP messages regardless.
This, apparently, started with the good reasons why _some_ ICMP messages should be ignored but sadly a lot of people were not savvy enough to realise that there are ICMP messages that serve an _essential_ purpose.
You can still find "advice" on the web to turn *ALL* ICMP off! *sigh*
Check all the config along the route, or better still, use wireshark on each segment to see what is *really* going on.
Regardless, if the OP is having problems with WiFi and not ethernet, then I'd suspect a WiFi problem.
-- Use OpenOffice.org <http://www.openoffice.org> -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Not necessarily - the problem may have had to do with WiFi routers. They were most likely the piece that would cut the transmission.
Boris.
Well, that would be included in "WiFi" wouldn't it? That would be the access point/router or WiFi NIC or perhaps some setting. Again, if ethernet works fine and WiFi doesn't your choices are the router, the NIC or some setting on either. If ethernet works fine, then the problem is not somewhere out on the "net". -- Use OpenOffice.org <http://www.openoffice.org> -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Sat, Feb 14, 2009 at 6:24 PM, James Knott <james.knott@rogers.com> wrote:
Boris Epstein wrote:
On Sat, Feb 14, 2009 at 6:16 PM, Boris Epstein <borepstein@gmail.com> wrote:
On Sat, Feb 14, 2009 at 6:14 PM, James Knott <james.knott@rogers.com> wrote:
Anton Aylward wrote:
James Knott said the following on 02/13/2009 09:50 PM:
I thought the "don't fragment" was a control bit in the IP header and if a router couldn't pass it without fragmenting, it was supposed to return an ICMP message back to the source.
That is quite correct, it is supposed to.
However many machines these days are configured to ignore all ICMP messages regardless.
This, apparently, started with the good reasons why _some_ ICMP messages should be ignored but sadly a lot of people were not savvy enough to realise that there are ICMP messages that serve an _essential_ purpose.
You can still find "advice" on the web to turn *ALL* ICMP off! *sigh*
Check all the config along the route, or better still, use wireshark on each segment to see what is *really* going on.
Regardless, if the OP is having problems with WiFi and not ethernet, then I'd suspect a WiFi problem.
-- Use OpenOffice.org <http://www.openoffice.org> -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Not necessarily - the problem may have had to do with WiFi routers. They were most likely the piece that would cut the transmission.
Boris.
Well, that would be included in "WiFi" wouldn't it? That would be the access point/router or WiFi NIC or perhaps some setting. Again, if ethernet works fine and WiFi doesn't your choices are the router, the NIC or some setting on either. If ethernet works fine, then the problem is not somewhere out on the "net".
-- Use OpenOffice.org <http://www.openoffice.org> -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Absolutely. Sorry if I misunderstood you somewhere along the line. Boris. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
participants (2)
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Boris Epstein
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James Knott