[Openswan Users] file transfer problem but a ping is ok

Oleksandr Darchuk old at caspella.com
Tue Oct 19 17:39:21 CEST 2004

Graham Bayley wrote:
> Problem: tunnel comes up correctly, no real errors seen in /var/log/secure
> or messages and can ping any machine on the other side.  As soon as I try to
> transfer a file or even 'cat' a file the ssh tunnel seems to collapse.  The
> same is true if I try and transfer a file using ftp or windows explorer.
> However during the problems I can still ping !!!

I have the same problem with l2tpd roadwarrior. Possibe it's MTU
problem? IMHO check icmp allowing in firewalls (to allow  defrag), read
and play with path MTU (start from here e.g.


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