Chris Samuel wrote:
Well a good start is to try the tracepath program which will use PMTUD
Hmm, alpha is using PPPoA (to an onboard solos card). I thought PPPoA had a higher MTU than PPPoE... was that just my imagination? $ tracepath 8.8.8.8 1: twb.cyber.com.au 0.169ms pmtu 1500 1: alpha.cyber.com.au 0.822ms 1: alpha.cyber.com.au 0.845ms 2: alpha.cyber.com.au 0.733ms pmtu 1492 2: lns20.mel4.internode.on.net 57.287ms 3: te2-2.cor3.mel4.internode.on.net 69.936ms asymm 10 4: gi7-1-0.bdr1.mel4.internode.on.net 68.938ms asymm 11 5: te6-0-0.bdr1.mel6.internode.on.net 69.190ms asymm 10 6: te2-0-0.bdr1.cbr1.internode.on.net 68.989ms asymm 8 7: te6-0-0.bdr1.syd4.internode.on.net 69.242ms 8: no reply 9: no reply 10: no reply 11: no reply 12: no reply 13: no reply ^C