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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.

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