Can't get networking working

[Kirtai]

When running the emulator I get the following output when the lispm tries to use DHCP, in addition to time out errors on the console.
(I set logging to 10.)

This is with cap_net_admin enabled (or root)

3COM: TBSW given to interface: Packet offset 1974, length 74
3COM: Sending 78 bytes
ether:write(): Input/output error
3COM: TBSW given to interface: Packet offset 1974, length 74
3COM: Sending 78 bytes
ether:write(): Input/output error
3COM: TBSW given to interface: Packet offset 1974, length 74
3COM: Sending 78 bytes
ether:write(): Input/output error
3COM: TBSW given to interface: Packet offset 1974, length 74
3COM: Sending 78 bytes
ether:write(): Input/output error
3COM: TBSW given to interface: Packet offset 1974, length 74
3COM: Sending 78 bytes
ether:write(): Input/output error

Without cap_net_admin, it fails to access the tun device with the following

3COM: TBSW given to interface: Packet offset 1974, length 74
3COM: TBSW given to interface: Packet offset 1974, length 74
3COM: TBSW given to interface: Packet offset 1974, length 74
3COM: TBSW given to interface: Packet offset 1974, length 74
3COM: TBSW given to interface: Packet offset 1974, length 74
VCMEM: Memory Control Reg Read
VCMEM: Memory Control Reg Write: 0x28
VC 0 BLACK-ON-WHITE MODE now 1
VCMEM: Memory Control Reg Read
VCMEM: Memory Control Reg Write: 0x38
VC 0 BLACK-ON-WHITE MODE now 0
3COM: RESET
ether_init(): Operation not permitted
3COM: AMSW given to interface: Our address is 00:02:9C:55:89:C6
3COM: TBSW given to interface: Packet offset 546, length 1502
3COM: TBSW given to interface: Packet offset 546, length 1502

[Kirtai]

It also fails the same way when run as root.