Connecting unmanaged switch to managed switch to add more ethernet ports question

I have a managed switch and need to have more ethernet ports. I can buy a used 5-port unmanaged switch for $10 so my question is if I connect the unmanaged switch to one of the ports on the managed switch (configured to use VLAN 100), will that make all of the other 4 ports on the unmanaged switch also be able to use VLAN 100? If it works like I think it will, it will solve my problem of not enough ports!

It is believed most unmanaged switches will just pass tagged packets unchanged. So long as the device(s) connected to it handle tags - in most cases you'll be OK.

There's old magazine articles, etc. about that.

If you connect the switch to a port as untagged VLAN 100, then yes, of course all ports are on that VLAN as normal.

Do you have an old OW compatible router laying around? You can use it for this purpose and depending on the hardware of it, just use it as a managed switch as well.

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The behaviour of unmanaged switches exposed to VLANs is undefined, it's impossible to predict the outcome. They might pass them through, they might silently drop them, they might behave strangely in corner cases - just don't do it.

Either use them to extend a single VLAN, untagged (connected to an untagged/ single VLAN) access port of your managed switch or look for a managed one, they aren't necessarily much more expensive (also take a look at second hand offers).

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you will limit the 4 ports to the link speed
it will make a bottle neck

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I do have an old device. I setup the device to be a dumb access point but just not configuring WiFi for it. Everything seems to work with my VLAN identification. I just don't know why I can't update opkg?

# opkg update
Downloading https://downloads.openwrt.org/releases/22.03.2/targets/ramips/mt7621/packages/Packages.gz
Failed to send request: Operation not permitted
*** Failed to download the package list from https://downloads.openwrt.org/releases/22.03.2/targets/ramips/mt7621/packages/Packages.gz

Downloading https://downloads.openwrt.org/releases/22.03.2/packages/mipsel_24kc/base/Packages.gz
Failed to send request: Operation not permitted
*** Failed to download the package list from https://downloads.openwrt.org/releases/22.03.2/packages/mipsel_24kc/base/Packages.gz

Downloading https://downloads.openwrt.org/releases/22.03.2/packages/mipsel_24kc/luci/Packages.gz
Failed to send request: Operation not permitted
*** Failed to download the package list from https://downloads.openwrt.org/releases/22.03.2/packages/mipsel_24kc/luci/Packages.gz

Downloading https://downloads.openwrt.org/releases/22.03.2/packages/mipsel_24kc/packages/Packages.gz
Failed to send request: Operation not permitted
*** Failed to download the package list from https://downloads.openwrt.org/releases/22.03.2/packages/mipsel_24kc/packages/Packages.gz

Downloading https://downloads.openwrt.org/releases/22.03.2/packages/mipsel_24kc/routing/Packages.gz
Failed to send request: Operation not permitted
*** Failed to download the package list from https://downloads.openwrt.org/releases/22.03.2/packages/mipsel_24kc/routing/Packages.gz

Downloading https://downloads.openwrt.org/releases/22.03.2/packages/mipsel_24kc/telephony/Packages.gz
Failed to send request: Operation not permitted
*** Failed to download the package list from https://downloads.openwrt.org/releases/22.03.2/packages/mipsel_24kc/telephony/Packages.gz

Collected errors:
 * opkg_download: Failed to download https://downloads.openwrt.org/releases/22.03.2/targets/ramips/mt7621/packages/Packages.gz, wget returned 4.
 * opkg_download: Check your network settings and connectivity.

 * opkg_download: Failed to download https://downloads.openwrt.org/releases/22.03.2/packages/mipsel_24kc/base/Packages.gz, wget returned 4.
 * opkg_download: Check your network settings and connectivity.

 * opkg_download: Failed to download https://downloads.openwrt.org/releases/22.03.2/packages/mipsel_24kc/luci/Packages.gz, wget returned 4.
 * opkg_download: Check your network settings and connectivity.

 * opkg_download: Failed to download https://downloads.openwrt.org/releases/22.03.2/packages/mipsel_24kc/packages/Packages.gz, wget returned 4.
 * opkg_download: Check your network settings and connectivity.

 * opkg_download: Failed to download https://downloads.openwrt.org/releases/22.03.2/packages/mipsel_24kc/routing/Packages.gz, wget returned 4.
 * opkg_download: Check your network settings and connectivity.

 * opkg_download: Failed to download https://downloads.openwrt.org/releases/22.03.2/packages/mipsel_24kc/telephony/Packages.gz, wget returned 4.
 * opkg_download: Check your network settings and connectivity.

Can you resolve DNS? Try ping www.google.com

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Guessing you defined a static IP and did not include DNS... see this video at about 25 minutes in to just use DHCP:

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Thank you that was my problem :heart_eyes:

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