On 2008-03-10, Michael <[EMAIL PROTECTED]> wrote: > This establishes a tun0 interface and I am able to ping out and resolve dns. > Something like ping openbsd.org works ok, so does dig openbsd.org, and so does > ftp ftp://ftp.openbsd.org > > But when I try to open http://openbsd.org in lynx, try to telnet openbsd.org > 80 > and GET /index.html HTTP/1.0, whois openbsd.org, or I try to pkg_add > something, > it doesn't work. Nothing happens.
this is a classic symptom of broken Van-Jacobson header compression. try "disable vjcomp". On 2008-03-10, Alexey Suslikov <[EMAIL PROTECTED]> wrote: > Michael <[EMAIL PROTECTED]> wrote: > >> tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500 >> groups: tun egress >> inet 75.192.185.229 --> 66.174.20.4 netmask 0xffffff0 >> > > How about adjusting mtu on tun to take ppp encapsulation overhead > in account? that's not it, 1500 MTU is fine over a serial connection. it's only a problem when encapsulated in a fixed-size media (like Ethernet). some people might reduce it so there's less delay to send interactive traffic during a bulk transfer but millions of people who never even heard of MTU have used 1500 MTU over PPP.
