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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: clue for the clueless please
Re the dialup mtu, 1500 is indeed the norm for ppp. I have a couple old school slip friends, whose mtu is lower. They are confused. Bri On Tue, 23 Jan 2001, Ryan O'Connell wrote: > > On Tue, Jan 23, 2001 at 01:59:41PM -0000, Peter Galbavy wrote: > > Yes, we intentionally (for some other reason during testing) set the MTU on > > the p2p link to 554 - oops. Will get it switched back... Still wondering > > though - if a normal dial-up has a lower than 1500 MTU, why would they work. > > Sounds almost certainly like an MTU problem. Try www.bt.com, if that fails > then it's pretty much definite. Microsoft are a bit silly for setting the > DF bit on outbound packets, firewalls at web hosting facilities that block > all ICMP are even more silly. Why on earth Microsoft, who must know about this > problem, block ICMP on their kit I don't know... > > Most if not all dialup has an MTU of 1500. > > -- > Ryan O'Connell - <[email protected]> - http://www.complicity.co.uk > > I'm not losing my mind, no I'm not changing my lines, > I'm just learning new things with the passage of time >
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