Дано:
Catalyst 3750 (S). На его 4-портах сконфигурирован access-VLAN:дело выглядит так:
1/0/5 подключен ISP (195.200.0.1/24)
1/0/6 сервер Linux (195.200.0.2/24)
1/0/7 D-link DFL-860E (195.200.0.3/24)
1/0/8 Ноутбук HP (195.200.0.4/24)
Сервер Linux и ноутбук HP друг друга пингуют без проблем, а вот D-link и ISP не пингуются.
Если все четыре провода воткнуть в другой "глупый коммутатор" D-Link DGS-1008 то все пингуется. ACL-на циске нет (брандмауры везде отключены). ARP-кэш на сервере Linux выглядит так:
xxx (195.200.0.4/24) at 10:1F:74:EA:C9:BE [ether] on eth1
xxx (195.200.0.1/24) at <incomplete> on eth1
xxx (195.200.0.3/24) at <incomplete> on eth1
P.S Помогите, любыми идеями!
cisco#show running-config
!
vlan 151
!
!
interface GigabitEthernet1/0/5
switchport access vlan 151
switchport mode access
!
interface GigabitEthernet1/0/6
switchport access vlan 151
switchport mode access
!
interface GigabitEthernet1/0/7
switchport access vlan 151
switchport mode access
duplex full
!
interface GigabitEthernet1/0/8
switchport access vlan 151
switchport mode access
!
### выввод одного из интерфейсов
cisco#show interfaces GigabitEthernet 1/0/7
GigabitEthernet1/0/7 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 0006.f651.7407 (bia 0006.f651.7407)
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100/1000BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:01, output hang never
Last clearing of "show interface" counters 00:21:01
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 2000 bits/sec, 4 packets/sec
533 packets input, 34112 bytes, 0 no buffer
Received 501 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
4450 packets output, 346818 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets