On 2012-08-06, David Walker <davidianwal...@gmail.com> wrote: > Interestingly this is the exact setup that ran with the previous ISP > so presumably they handled all that within their network and passed on > packets somewhat smaller than 1500 to me. I never had to reassemble > packets or scrub them or negotiate size.
Some (but not many) ISPs do "ip tcp adjust-mss" or similar on their side of the pppoe connection.