Across the switches with vlan ARP-CodePudding

This simple situation across the switches with vlan can ping

This across two switches can't, today ping always arp to Switch0 is not broadcast rejected (simulation) as

Four trunk port Settings are the same trunk mode allows vlan 10 20 to 30 by

 
Switch# show interfaces GigabitEthernet 0/1 switchport 
Name: Gig0/1 
Switchport: Enabled 
Administrative Mode: trunk 
The Operational Mode: trunk 
Administrative Trunking Encapsulation: dot1q 
The Operational Trunking Encapsulation: dot1q 
Negotiation of Trunking: On 
The Access Mode VLAN: 1 (the default) 
Trunking Native Mode VLAN: 1 (the default) 
Voice VLAN: none 
Administrative private vlan host - association: none 
Administrative private - vlan mapping: none 
Administrative private - vlan trunk native vlan: none 
Administrative private - vlan trunk encapsulation: dot1q 
Administrative private - vlan trunk normal VLANs: none 
Administrative private - vlan trunk private VLANs: none 
The Operational private - vlan: none 
Trunking VLANs Enabled: 10, 30 
Pruning VLANs Enabled: 2-1001 
The Capture Mode Disabled 
The Capture VLANs charges: ALL 
Protected: false

CodePudding user response:

6666666

CodePudding user response:

Communication does not involve the arp on the second floor, or check configuration, should be a configuration problem

CodePudding user response:

The Switch 0 two ports?

CodePudding user response:

The

reference 3 floor Iforgetmyid response:

Switch 0 two ports?

Are all the same trunk Settings

CodePudding user response:

The switch configuration of 0 posted up

CodePudding user response:

Ping is not the same thing and arp, ping is icmp! "Today ping always arp to Switch0 is not broadcast rejected" the meaning of this sentence is not clear

CodePudding user response:

reference 5 floor weixin_40290083 reply:

0 switch configuration posted up

 
=================SWITCH 0 
Interface GigabitEthernet0/1 
Switchport trunk native vlan 99 
Switchport trunk allowed 10,20,30,99 vlan 
Switchport mode trunk 
! 
Interface GigabitEthernet0/2 
Switchport trunk native vlan 99 
Switchport trunk allowed 10,20,30,99 vlan 
Switchport mode trunk 

=================the SWITCH 1 
Interface FastEthernet0/1 
Switchport access vlan 10 
Switchport mode access 
! 
Interface FastEthernet0/2 
Switchport access vlan 20 
Switchport mode access 
! 
Interface FastEthernet0/3 
Switchport access vlan 30 
Switchport mode access 
! 
Interface GigabitEthernet0/1 
Switchport trunk native vlan 99 
Switchport trunk allowed 10,20,30,99 vlan 
Switchport mode trunk 

=================SWITCH 2 
Interface FastEthernet0/1 
Switchport access vlan 10 
Switchport mode access 
! 
Interface FastEthernet0/2 
Switchport access vlan 20 
Switchport mode access 
! 
Interface FastEthernet0/3 
Switchport access vlan 30 
Switchport mode access 
! 
Interface GigabitEthernet0/1 
Switchport trunk native vlan 99 
Switchport trunk allowed 10,20,30,99 vlan 
Switchport mode trunk