腦中有一個問題，一直想不出來，上網查，也不知該設什麼關鍵字去google；
我有一台juniper ex4200 L3的Switch上面切vlan 50 (vlin_id :50)，vlan ip :192.168.50.249，port1設定為trunk mode，設定方式如下 :
set interfaces ge-0/0/1 unit 0 family ethernet-switching port-mode trunk
set interfaces ge-0/0/1 unit 0 family ethernet-switching vlan members vlan50
set interfaces vlan unit 50 family inet address 192.168.50.249/24
set vlans vlan50 vlan-id 50
set vlans vlan50 interface ge-0/0/1.0
set vlans vlan50 l3-interface vlan.50
一台juniper ex2200 L2的Switch上面有切vlan 50(vlin_id :50)，，vlan ip :192.168.50.250，port1設定為trunk mode，設定方式如下 :
set interfaces ge-0/0/1 unit 0 family ethernet-switching port-mode trunk
set interfaces ge-0/0/1 unit 0 family ethernet-switching vlan members vlan50
set interfaces vlan unit 50 family inet address 192.168.50.250/24
set vlans vlan50 vlan-id 50
set vlans vlan50 interface ge-0/0/1.0
set vlans vlan50 l3-interface vlan.50
L2/L3 上，當我把L2 vlan 50 Port1 與L3 vlan 50 Port1 對接, port1 狀態Link UP，L2與L3 Vlan50狀態Link UP，
但是我從L2 ping L3 vlan ip :192.168.50.249 卻不通(從L3 ping L2 vlan ip :192.168.50.250也不通)，arp table也看不到L2與L3彼此的vlan ip
這個問題讓我想好久；
可以拜託網上各位先進幫忙解答嗎 ?感恩。謝謝！！！
paljust wrote:
把設定檔裡面的 100(恕刪)
抱歉，我打錯了。^^
我本來就是在L2與L3設定成192.168.50.XXX的網段IP，
可是我從L2 ping L3 vlan ip :192.168.50.249 卻不通(從L3 ping L2 vlan ip :192.168.50.250也不通)，
L2> ping 192.168.50.249
PING 192.168.50.249 (192.168.50.249): 56 data bytes
^C
--- 192.168.50.249 ping statistics ---
15 packets transmitted, 0 packets received, 100% packet loss
==========================================================
L3> ping 192.168.50.250
PING 192.168.50.250 (192.168.50.250): 56 data bytes
^C
--- 192.168.50.250 ping statistics ---
12 packets transmitted, 0 packets received, 100% packet loss
==========================================================
arp table也看不到L2與L3彼此的vlan ip；
juniper ex2200 L2 arp table :
L2> show arp
MAC Address Address Name Interface Flags
00:1d:aa:4a:a3:c8 192.168.50.1 192.168.50.1 me0.0 none
84:18:88:a6:c8:7f 192.168.50.2 192.168.50.2 me0.0 none
e4:54:e8:c8:c1:c0 192.168.50.16 192.168.50.16 me0.0 none
70:b5:e8:23:02:13 192.168.50.20 192.168.50.20 me0.0 none
Total entries: 4
==========================================================
Juniper ex4200 L3 arp table :
L3>> show arp
MAC Address Address Name Interface Flags
00:1d:aa:4a:a3:c8 192.168.50.1 192.168.50.1 me0.0 none
dc:38:e1:97:63:bf 192.168.50.4 192.168.50.4 me0.0 none
e4:54:e8:c8:c1:c0 192.168.50.16 192.168.50.16 me0.0 none
70:b5:e8:23:02:13 192.168.50.20 192.168.50.20 me0.0 none
Total entries: 4
==========================================================
真的蠻奇怪的........@@
Lkuant wrote:
show interface terse
我分別在juniper L2，L3下show interface terse 指令，結果如下 :
L2 :
vlan.50 up up inet 192.168.50.250/24
L3:
vlan.50 up up inet 192.168.50.249/24
雖然VLAN50 已經up，但是我從L2 ping L3 vlan ip :192.168.50.249 卻不通
(從L3 ping L2 vlan ip :192.168.50.250也不通)，
rp table也看不到L2與L3彼此的vlan ip，
請問各位先進，知道是為什麼嗎?
Lkuant wrote:
請問L3及L2連接時 ping自己的ip是否會通呢?
可否show一下介面設定?
[edit interfaces]
# show ge-0/0/1
[edit vlans]
# show
>show ethernet-switching table
是否能看到對方mac address呢?
謝謝
我是EX2200 L2 interface ge-0/0/6 (trunk mode)連接EX4200 L3 interface ge-0/0/6 (trunk mode)
L3:
root# show ge-0/0/6 |display set
set interfaces ge-0/0/6 unit 0 family ethernet-switching port-mode trunk
set interfaces ge-0/0/6 unit 0 family ethernet-switching vlan members vlan50
set interfaces ge-0/0/6 unit 0 family ethernet-switching native-vlan-id vlan50
root> show ethernet-switching table
Ethernet-switching table: 6 entries, 1 learned
VLAN MAC address Type Age Interfaces
default 84:18:88:a6:c8:00 Static - Router
vlan224 84:18:88:a6:c8:00 Static - Router
vlan50 * Flood - All-members
vlan50 84:18:88:a6:c8:00 Static - Router
vlan50 dc:38:e1:97:63:89 Learn 0 ge-0/0/6.0
vlan100 84:18:88:a6:c8:00 Static - Router
root> show interfaces vlan terse
Interface Admin Link Proto Local Remote
vlan up up
vlan.0 up down inet
vlan.50 up up inet 192.168.50.249/24
vlan.100 up down inet 192.168.100.249/24
vlan.224 up down inet 192.168.104.2/24
root> show route
inet.0: 7 destinations, 8 routes (7 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
192.168.50.0/24 *[Direct/0] 1d 06:14:23
> via vlan.50
[Direct/0] 1d 05:56:43
> via me0.0
192.168.50.2/32 *[Local/0] 1d 05:56:43
Local via me0.0
192.168.50.249/32 *[Local/0] 1d 06:14:23
Local via vlan.50
192.168.100.249/32 *[Local/0] 1d 06:08:20
Reject
192.168.104.2/32 *[Local/0] 1d 06:54:19
Reject
224.0.0.2/32 *[PIM/0] 1d 07:16:34
MultiRecv
224.0.0.13/32 *[PIM/0] 1d 07:16:34
MultiRecv
inet6.0: 2 destinations, 2 routes (2 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
ff02::2/128 *[PIM/0] 1d 07:16:34
MultiRecv
ff02::d/128 *[PIM/0] 1d 07:16:34
MultiRecv
==================================================================================
L2:
root# show ge-0/0/6 |display set
set interfaces ge-0/0/6 unit 0 family ethernet-switching port-mode trunk
set interfaces ge-0/0/6 unit 0 family ethernet-switching vlan members vlan50
set interfaces ge-0/0/6 unit 0 family ethernet-switching native-vlan-id vlan50
root> show ethernet-switching table
Ethernet-switching table: 4 entries, 1 learned, 0 persistent entries
VLAN MAC address Type Age Interfaces
default dc:38:e1:97:63:81 Static - Router
vlan50 * Flood - All-members
vlan50 84:18:88:a6:c8:06 Learn 0 ge-0/0/6.0
vlan50 dc:38:e1:97:63:81 Static - Router
root> show interfaces vlan terse
Interface Admin Link Proto Local Remote
vlan up up
vlan.0 up down inet
vlan.50 up up inet 192.168.50.250/24
root> show route
inet.0: 3 destinations, 4 routes (3 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
192.168.50.0/24 *[Direct/0] 1d 05:52:09
> via me0.0
[Direct/0] 04:37:29
> via vlan.50
192.168.50.4/32 *[Local/0] 1d 05:52:09
Local via me0.0
192.168.50.250/32 *[Local/0] 06:42:39
Local via vlan.50
L2及L3 Vlan50 ge-0/0/6 在ethernet-switching table是learn的狀態，Vlan LINK UP
L3 vlan_ip:192.168.50.249/24 ping L2 vlan ip:192.168.50.250/24 ，L2 & L3 vlan_ip彼此互ping，都是fail
不知道到底是哪個地方出了問題 ???
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