Just tried the 2.6.27-4-generic kernel, same problem, no network connection.
Also looks related to bug 225749
uname -a Linux pc-64 2.6.27-4-generic #1 SMP Mon Sep 22 04:40:15 UTC 2008 x86_64 GNU/Linux
lspci -vv 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev ff) (prog-if ff) !!! Unknown header type 7f Kernel driver in use: r8169 Kernel modules: r8169
Just tried the 2.6.27-4-generic kernel, same problem, no network connection.
Also looks related to bug 225749
uname -a
Linux pc-64 2.6.27-4-generic #1 SMP Mon Sep 22 04:40:15 UTC 2008 x86_64 GNU/Linux
lspci -vv
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev ff) (prog-if ff)
!!! Unknown header type 7f
Kernel driver in use: r8169
Kernel modules: r8169