In a switch (cisco2950) add a vlan, 28, and add the port, after normal access to the IP address, can be normal access to the Internet, but the problem is coming, in the other switch (cisco2950) under the same network segment of the computer all the broken network,
If the vlan 28 first switches are removed, the second switch is again good,
Got 2 times repeatedly, it is the same situation, please take a look at what is this why?

CodePudding user response:

First of all, a vlan is a separate the function of the radio
You said that Internet is a public network gateway is the exit?
So please send your topology and the corresponding configuration posted to see
There is a problem add QQ: 279547402

CodePudding user response:

This problem is the topology topology to send to

CodePudding user response:

Another device of the same network segment is broken network, which vlan interface belongs to the same network segment? If you don't belong to vlan28, why another vlan other machine and new vlan28 the same network segment? And the physical interface address under vlan28 is how to get? If the DHCP, then where is the gateway? You say the same network segment another device interface gateway in where? Look at these information, the estimate is solved,

CodePudding user response:

Upstairs said is very right, 1, added vlan28 configuration on the exchange of 1 to obtain IP address automatically shows vlan28 obtained through a DHCP address
2, after vlan28 access address to paralyze the sw2 on the same network segment
So why don't come vlan28 problem set to the same network segment on sw2 vlan, DHCP is allocated by vlan address you this may lead to the sw2 can't on the same network segment address access, solution 1. You can reconfigure a DHCP pool assigned to vlan28 or on the same network segment 2. Sw2 vlan28 instead for the same network segment on the sw2 vlan try

CodePudding user response:

Across the switches vlan should be, I believe, by a three layer switches to unified management,

CodePudding user response:

Vlan opened server mode, that this will pass, will certainly affect the vlan to increase or decrease

CodePudding user response:

refer to 6th floor metrotie response:

vlan opened server mode, that this will pass, will certainly affect the vlan to increase or decrease

The positive solution