A PMTU auto-discovery error for large SCTP packets

2017-01-24 Thread YUAN Jia
Hi All, Recently, I met a problem of SCTP association broken which was resulted from large SCTP packets as attached in this mail. Because the 1st packet’s length is 1626 that exceeds the next hop’s MTU of 1500, an ICMP packet of code 4 (Fragmentation needed) reflects back and carries the correc

Re: A PMTU auto-discovery error for large SCTP packets

2017-01-29 Thread Marcelo Ricardo Leitner
On Wed, Jan 25, 2017 at 06:40:10AM +, YUAN Jia wrote: ... > I think that ‘sctp_manip_pkt’ should also behave like this. Isn’t it? I believe so, yes. Will you send a patch? Btw, your host did have a MTU bigger than 1500, right? I'm just curious on why such big packet was generated in the first