On Fri, 15 Mar 2024, James Andrewartha wrote: > On Thu, 14 Mar 2024, Craig Askings wrote: > > > Are you using an ip address or FQDN as the vpn target for the students to > > connect to? > > FQDN. > > I've turned on keepalive but there's no timer setting available.
A parent brought their modem into the school for testing, and it already had PDP set to IPv4v6 and had a RFC6598 address, so it wasn't that. The problem was actually MTU - on testing, pings could get through, and the initial stages of a web connection, but the data never made it back from the server to the client. So I set the VPN interface MTU to 1280 and everything started working. Testing the raw connection showed an MTU of 1330 which is an odd value. Is there anyone from Telstra who can confirm that the 5G home broadband product has a lower MTU? -- # TRS-80 trs80(a)ucc.gu.uwa.edu.au #/ "Otherwise Bub here will do \ # UCC Wheel Member http://trs80.ucc.asn.au/ #| what squirrels do best | [ "There's nobody getting rich writing ]| -- Collect and hide your | [ software that I know of" -- Bill Gates, 1980 ]\ nuts." -- Acid Reflux #231 / _______________________________________________ AusNOG mailing list AusNOG@lists.ausnog.net https://lists.ausnog.net/mailman/listinfo/ausnog
