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ven. 15 mai 2020 15:49

Private wifi can not connect to LAN

Hey, is it normal I can not connect from a wifi connected device to my NAS connected on the Technicolor router via LAN ?

I would expect Guest network is not able to connect to LAN, but my own 2.4 or 5 G networks can, although it doesn't seem to be the case.

Is it configurable in the settings ?

Kind regards, Kris.

Réponses

roylion15

Top Expert

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16.5K Messages

il y a 2 mois

Hello

Guest wifi is a separate wifi to share with your guests , it’s not related with your private wifi or wired network ...

It’s on a separate dhcp server and also another IP range .

Thus guest devices can connect to the internet but not communicate directly with your private devices.

By default

Devices connected on your private wifi can communicate with another wired devices that are directly connected to the modem router

Do you modify some settings in your modem ?

Another router in your network ?

(Modifié)

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cosmos1999

Expert

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3K Messages

Hello,

Nothing special to configure in the Technicolor settings, the default settings do the job.

No problem to connect with my Laptop in Wifi mode to a device connected on wired LAN.

Perhaps should you check the network config. of your devices ( DHCP mode, subnet .... )

(Modifié)

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9 Messages

Hey Cosmos, roylion,

Thanks for your feedback. Here some more info :

LAN defined on Technicolor : 192.168.192.0/24

laptop connected via WIFI via DHC : 192.168.192.206 with gateway 192.168.192.1

2nd router with fixed IP, rcvd from Technicolor 192.168.192.192.

(second router has eth0 on 192.168.192.192 - connected to Technicolor, eth1 has range 10..... DMZ, eth2 has 192.168.168.0/24 range - my LAN

C:\Users\KRISPaelman>tracert 192.168.192.1

Tracing route to 192.168.192.1 over a maximum of 30 hops

1 1 ms 1 ms 1 ms 192.168.192.1

Trace complete.

C:\Users\KRISPaelman>tracert 8.8.8.8

Tracing route to dns.google [8.8.8.8]

over a maximum of 30 hops:

1 1 ms 1 ms 1 ms 192.168.192.1

2 9 ms 8 ms 9 ms 10.161.18.161

3 10 ms 9 ms 9 ms mx-bxl2-1.voo.be [78.129.125.249]

4 10 ms 25 ms * mx-bxl2-2.voo.be [212.68.211.9]

5 13 ms 25 ms 13 ms google.telecity5.nl-ix.net [193.239.117.141]

6 13 ms 14 ms 14 ms 108.170.241.193

7 13 ms 13 ms 20 ms ^C

C:\Users\KRISPaelman>tracert 192.168.192.192

Tracing route to 192.168.192.192 over a maximum of 30 hops

1 * * * Request timed out.

2 * *

--------------------------------------------------------------------------------------------

Connecting to a system in DMZ - address rcvd from DHCP server on Edgerouter (2nd router) :

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . :

Link-local IPv6 Address . . . . . : fe80::c119:e7af:4768:203e%3

IPv4 Address. . . . . . . . . . . : 10.168.168.168

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . : 10.168.168.1

Wireless LAN adapter Wi-Fi:

Media State . . . . . . . . . . . : Media disconnected

Connection-specific DNS Suffix . :

C:\>tracert 8.8.8.8

Tracing route to dns.google [8.8.8.8]

over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms 10.168.168.1

2 <1 ms <1 ms <1 ms 192.168.192.1

3 7 ms 9 ms 7 ms 10.161.18.161

4 8 ms 8 ms 10 ms mx-bxl2-1.voo.be [78.129.125.249]

5 11 ms 7 ms 8 ms mx-bxl2-2.voo.be [212.68.211.9]

6 11 ms 12 ms 12 ms google.telecity5.nl-ix.net [193.239.117.141]

7 11 ms 11 ms 11 ms ^C

C:\>tracert tracert 192.168.192.206

Unable to resolve target system name tracert.

C:\>tracert 192.168.192.206

Tracing route to 192.168.192.206 over a maximum of 30 hops

1 <1 ms <1 ms <1 ms 10.168.168.1

2 * * * Request timed out.

3 * * * Request timed out.

4 * * * Request timed out.

5 * * * Request timed out.

6 * * ^C

C:\>

C:\>tracert 192.168.192.192

Tracing route to 192.168.192.192 over a maximum of 30 hops

1 <1 ms <1 ms <1 ms 192.168.192.192

Trace complete.

C:\>tracert 192.168.192.1

Tracing route to 192.168.192.1 over a maximum of 30 hops

1 <1 ms <1 ms <1 ms 10.168.168.1

2 1 ms <1 ms <1 ms 192.168.192.1

Trace complete.

C:\>tracert 192.168.192.206

Tracing route to 192.168.192.206 over a maximum of 30 hops

1 <1 ms <1 ms <1 ms 10.168.168.1

2 * * * Request timed out.

3 * ^C

-------------------------------------------

So it looks to me that somehow, I get to the VOO Technicolor router, but not back to my wifi connected laptop.

(Modifié)

roylion15

Top Expert

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16.5K Messages

You configuration is very « exotic » and incorrect with a double nat ( 2 routers behind each other ) and different subnets that can not communicate correctly .

The problem is not the voo modem but your network configuration.

Put the second router in access point mode ( bridge )

NAT and dhcp server deactivated.

or

put the voo modem in bridge mode and use your personal router to do the routing job ...

Use only one subnet and one dhcp server on your network.

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9 Messages

Thanks Roylion for the feedback.

I am using the advised architecture for synology NAS as per https://www.youtube.com/watch?v=FRNNDNmFEwk 2nd option.

Technicolor ----- Router ------ DMZ

******************** |

******************** |

******************** |

LAN with different subnets by kind of device. (Surveillance cams, laptops, audio)

I know my router is configured correctly to allow access to website, mail server in DMZ and my LAN seems to work ok as well. I just get the impression my ISP router is sending 10 traffic on to the internet but I can't seem to define routes in the VOO modem - is that correct.

I don't have my VOO in bridge mode though - should it ? I have also a Guest wifi and only want these to connect to internet - no LAN or DMZ. Would that still be the case if I put Technicolor on bridge mode ?

(Modifié)

roylion15

Top Expert

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16.5K Messages

No ...

IN bridge mode , router functions are disabled and it becomes a simple modem, only one device can be connected to it on ethernet port 1, it is your personal router and the modem wifis must be also disabled.

You are only entitled to one public IP per client on residential subscriptions.

The VOO modem (in router mode) can support a /24 subnet for private network and another /24 with another range and DHCP server for guests.

It's a residential device that is not intended to support "exotic" configurations.

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