The driver/hardware for rtl8139 seems to be limited at 4096: bryan@desktop:/mnt/store/git/linux-git/drivers/net/ethernet/realtek$ grep 4096 * 8139cp.c:#define CP_MAX_MTU 4096 8139cp.c: RxErrLong = (1 << 21), /* Rx error, packet > 4096 bytes */
I wonder if ifupdown can handle this better and report that the MTU is to high.. maybe even fallback to maximum and note it in the logs?
The driver/hardware for rtl8139 seems to be limited at 4096: /mnt/store/ git/linux- git/drivers/ net/ethernet/ realtek$ grep 4096 *
bryan@desktop:
8139cp.c:#define CP_MAX_MTU 4096
8139cp.c: RxErrLong = (1 << 21), /* Rx error, packet > 4096 bytes */
I wonder if ifupdown can handle this better and report that the MTU is to high.. maybe even fallback to maximum and note it in the logs?