-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thu, Feb 09, 2017 at 08:00:15AM -0500, rhkra...@gmail.com wrote: > On Thursday, February 09, 2017 07:21:58 AM Dan Purgert wrote: > > rhkra...@gmail.com wrote: > > > I noticed today that those statistics pages do tell me the size of the > > > MTUs > > > > > > On the: MTU is: > > > WAN VC 1540 > > > Ethernet 1500 > > > > Yuck. Hate it when people start mucking around with MTUs ... > > If somebody was mucking about with MTUs it tweren't me. I'm guessing those > are set in the modem, and Earthlink provided the modem--maybe they changed > something. (And maybe they are who I should ask about the twice as many > bytes > issue--but I guess I have to be ready to deal with the support people in > India--IIRC from last time, I can insist on speaking to a native English > speaker....)
This is the result of PPPoE or something similar: your packets are being wrapped in other packets (e.g. PPP) which go between your provider and your router), and all that goes in Ethernet (which has a payload of 1500 for "normal" frames). Of course, the wrapper's headers (in my example above PPP) have to go somewhere, and that are the missing 60 bytes. Needless to say, *if* it's PPPoE this is mostly superfluous these days and just historical ballast: but I guess the people at your provider's knowing this and able to do something about it have long been outsourced. Yah. I'm becoming a cynic. Cheers, nevertheless :-) - -- tomás -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAlicav0ACgkQBcgs9XrR2kYAtgCfWdh4NT0i7oCdxRAlXwzcngtz 0bwAnjWccXjm7P0Q9CNl6xA0K1J2qrtc =vYRU -----END PGP SIGNATURE-----