Different VLANS and Networks

[alaahijazi]

Hello i have an issue where i have a PC with a vlan 10 and and IP address 172.16.10.10 on it and a switch where there is a vlan 99 on it with an IP address 192.168.1.1 and a router for intervlan, the switch is a layer 2 switch, when i ping the vlan 99 from my PC it gives me destination host unreachable, what should i do to have a successful ping.

[paul driver]

Hello

For the two subnets to be able to respond to each other your need some routing.

Does your switch have l3 two interfaces enabled that can perfrom this routing if not then youll need an additional device to perfrom this function.

[alaahijazi]

hello, what do you mean by I3 two interfaces enabled ?

thank you

[alaahijazi]

I think i don't think the switch have this option enabled because it's a layer 2 switch

[luis_cordova]

Hi @alaahijazi 

Check this out:
The PC must have the correct gateway

The switch port that connects to the PC must be in access mode and attached to vlan 10

The switch must have the correct gateway configured

The switch port that connects to the router must be in trunk mode

In router you must not have an ip in the physical interface

The router must have subinterfaces configured, have the correct vlan encapsulares and the correct ip gateway

Regards

[alaahijazi]

hello, i think im missing this one : The switch must have the correct gateway configured
how should configure it

[luis_cordova · Accepted solution]

Hi @alaahijazi 

Draw a small diagram and point to the command:

S(config)# ip default-gateway <gateway ip>

Regards 

[alaahijazi]

You are the Best thank you !

[Giovanni Alexander Molina]

check out the ip default-gateway on the switch, you can perform a ping from the router also but using the source parameter on the ping command.

ping 192.168.1.1 source 172.16.10.10

where the 172.16.10.10 should be the router interface for on the pc's lan.

for more visibility can you add the show ip int brief output from the router? and the switch show run?