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| author | julian <julian@FreeBSD.org> | 1997-06-11 20:15:50 +0000 |
|---|---|---|
| committer | julian <julian@FreeBSD.org> | 1997-06-11 20:15:50 +0000 |
| commit | 8022bba3f4c54d3b3614269a0eff4fccf6b283a1 (patch) | |
| tree | 454075c3d5d3f97c14b70db19146392c7a1f3108 /sys/net/if_tun.h | |
| parent | dad173c0c8588a4ace24e3e2fa4cf8bfc3fc954e (diff) | |
| download | FreeBSD-src-8022bba3f4c54d3b3614269a0eff4fccf6b283a1.zip FreeBSD-src-8022bba3f4c54d3b3614269a0eff4fccf6b283a1.tar.gz | |
As the Tunnel device has no real inherrent MRU limit,
so don't enforce the MTU as an MRU. Allow bidirectional ppp MTU
negotiation, by checking against a differnt figure for MRU.
Make it large enough for ATM frames at least.
Submitted by: archie@whistle.com (archie cobbs)
Diffstat (limited to 'sys/net/if_tun.h')
| -rw-r--r-- | sys/net/if_tun.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/net/if_tun.h b/sys/net/if_tun.h index 404a877..6c44fcd 100644 --- a/sys/net/if_tun.h +++ b/sys/net/if_tun.h @@ -38,9 +38,12 @@ struct tun_softc { struct selinfo tun_wsel; /* write select (not used) */ }; -/* Default maximum packet size */ +/* Maximum transmit packet size (default) */ #define TUNMTU 1500 +/* Maximum receive packet size (hard limit) */ +#define TUNMRU 16384 + struct tuninfo { int baudrate; /* linespeed */ short mtu; /* maximum transmission unit */ |
