cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
2852
Views
0
Helpful
2
Replies

SG300-10 and DNS

Vision100
Level 1
Level 1

Hi,

SG300-10   mode:layer 3

dns server:192.168.2.11

vlan1    192.168.2.0       ip:192.168.2.254    0.0.0.0 next hop 192.168.2.3

vlan2     192.168.50.0     ip:192.168.50.254

dns server table:192.168.2.11 (active)

Router(192.168.2.3)    dst.address 192.168.50.0/24  gw:192.168.2.254

No internet                                                     

pc:

ip:192.168.50.10                        192.168.2.10                                  

gw:192.168.50.254                     192.168.2.254                  

dns:192.168.50.254                     192.168.2.254

If dns = 192.168.2.3  >>  yes internet

I think there is something wrong with the DNS setting on the SG300?

Or I do something wrong?

2 Replies 2

rocater
Level 3
Level 3

Hello Vision100,

Unfortunately the SG300 does not provided DNS proxy features. It will do layer 3 routing and as you mentioned when you point it to an actual DNS server it does work.

You need to use an internal or extrernal DNS Server and configure it in your DHCP scope options. If you are using an internal DNS Server you need to configure forwarding to an external DNS Resolver.

Sent from Cisco Technical Support iPad App

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community:

Switch products supported in this community
Cisco Business Product Family
  • CBS110
  • CBS220
  • CBS250
  • CBS350
Cisco Switching Product Family
  • 110
  • 200
  • 220
  • 250
  • 300
  • 350
  • 350X
  • 550X