Hi anykey,
Danke für Deine Antwort und hier die Config auf interface 0:
router>show interface fast 0
FastEthernet0 is up, line protocol is down
Hardware is PQUICC_FEC, address is 0012.dac3.c8eb (bia 0012.dac3.c8eb)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 135/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Unknown Speed, 100BaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
86 packets output, 5160 bytes, 0 underruns
86 output errors, 0 collisions, 2 interface resets
0 babbles, 0 late collision, 0 deferred
86 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out