@Mitya HI Mitya, Thanks for the reply. So my L3 switch will connect to the router and access to the internet. The switch have two VLAN interface and do the L3 switch need to configure the default...

Hi, Just asking the TLER7206 would have or not the multi nat net function. If not, which router will have this function ? Thanks so much. Jack

After fire wall setting off. All PC can ping each other. Thanks a lot.

@Fae Hi After set up the interface ip address in the L3 page and the VLAN conf. in the L2 page. the two PCs which have 2 different VLAN still can't ping each other. And the PVID is set. Detail as...

@Fae Thanks for quick response. I will try it again and will update in this post.

@Fae Dear Fae, Once again thank you for your help. If I refer to this FAQ, and I have the same three nos. of VLAN and L3 interface setting on my T1600G switch. What about the IPv4 static route...