Network architecture is that everyone a great god, there is a layer 3 switches, computer room VLAN1 is 192.168.100.0/24 subnet, 6 to 12 floor floor access switches are with VLAN, the default configuration is VLAN1, IP is 192.168.100.0/24 subnet, my computer in the 11th floor, convenient to manage floors switches, but ping, Telnet let alone, then looked at the three layers configuration inside, inside the ARP table 6 to 12 floor switches VLAN1 address, the younger brother really ability is limited, please advise
CodePudding user response:
See access switches to the layer 3 switches vlan1 operation through the cascade of mouth? Can be caught, you can long ping, and then to switch on the mirror and see if there is a corresponding arp message sent, or ping request message sent, no hair, would see levels of unicom is open?
CodePudding user response:
reference 1st floor wj31932 response: see access switches to the layer 3 switches vlan1 operation through the cascade of mouth? Can be caught, you can long ping, and then to switch on the mirror and see if there is a corresponding arp message sent, or ping request message sent, no hair, would see levels of unicom is open? how watching cascade whether to allow VLAN1 through mouth, caught software how ARP and ping packet message information, caught software conference, ask the great spirit show under CodePudding user response:
The top post, each a great god for help CodePudding user response:
What is your IP network segment? Should not be 192.168.100.0/24 network segment? CodePudding user response:
reference 5 floor Iforgetmyid reply: what is your IP network segment? Should not be 192.168.100.0/24 network segment? I am not, I was 192.168.11.0 of/24, 100 network segment is layer 3 switches VLAN1 CodePudding user response:
Different segments of data exchange, it is through the gateway route by implementation, the gateway where is the your computer? Routing can reach 192.168.100.0/24 network segment? CodePudding user response:
refer to 7th floor Iforgetmyid response: data exchange of different network segments, is through the gateway route by implementation, the gateway where is the your computer? Routing can reach 192.168.100.0/24 network segment? can ping 100 segment of computer room four switches and routers, but floor switches VLAN1 set is 100 network segment, but can't, I now access floor is to view the floor switch, plug cable, modify IP, mask, gateway into 100 to access a network segment, really depressed, a great god have any idea CodePudding user response:
Check for one reason, your floor switches, you don't have to write the default routing, routing the next-hop to set the default gateway 192.168.100.0/24, CodePudding user response:
Look at your floor switch configuration, have 100 segment address, floor is a trunk access or routing access to the room CodePudding user response:
references to the tenth floor qing1122334455 response: see you floor switch configuration, have 100 segment address, floor to the room is a trunk access or routing access 100 segment address, but to the computer room is the access access floor, I was wonder if not set the cause of the trunk opening access, the cascade of mouth floor switches also didn't set up the trunk, is it because the access port management VLAN1 can't exchange between, say, all the floor of the switch management VLAN is 100 network segment CodePudding user response:
First of all, your computer is 192.168.11.0/24 segment, VLAN1 is 192.168.100.0/24, under normal circumstances do not specify a routing, three layer doesn't open IP routing is ping Telnet impassability, you put your port with three layers to other floor into the trunk, three levels of open IP routing should be ok, CodePudding user response:
Try to add a static route is VLAN1 no vlan isolation segment impassability should be gateway not together with static refers to a static in the past 