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I have Linksys WRT54GL with Tomato installed. Unfortently I can't use VLANs with this firmware, so I have to switch to OpenWRT (or DD-WRT). Is it safe to use web interface or I should use tftp way?

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Are you connecting wirelessly? Whichever way you're doing it, none of your communications with the web UI actually touch the internet. If it's wireless, it'll be encrypted, and if it's wired, somebody would need physical access to the wire to man-in-the-middle you. – Phoshi May 15 '10 at 16:23
@Phoshi, from what I understood, skfd isn't worried about being attacked, but more about bricking his router. I believe he's asking if it is okay to use the Tomato UI to flash the new firmware to the router. And as a side note, its is recommenced by most of the 3rd party firmwares to always flash over a hard-wired connection, never over wireless. – heavyd May 15 '10 at 16:28
@heavyd: Oh, completely misread that. Yeah, web UI is safe, at least, I've never had issues. – Phoshi May 15 '10 at 16:32
up vote 3 down vote accepted

You should be safe upgrading to DD-WRT, or any other firmware for that matter, through the Tomato UI.

But, as an alternative, you can continue to use Tomato. It does support VLANS, it uses them by default out of the box (if you go to your device list you will probably see at least one VLAN interface listed). Here is a nice guide to help you setup your own VLANs. It does take a little bit of command line work, but not much, and you can keep with your current Tomato setup.

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Oh, so it lacks only GUI support of vlans, that that's great! – skfd May 15 '10 at 16:51

I have updated from the linksys firmware to dd-wrt, from dd-wrt to tomato, and probably a few other variants. I never had a problem with my 54gl

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