[xXravenXx]

If you just want to keep your main account out of trouble. I would not worry about your IP, as this is a rare ban.

I would be more worried about your MAC and ID0 hash.

Darkstorm and similiar viewers only allow for one MAC and ID0 to be used in the entire viewer which is dangerous.
This can lead to a ban of all alt-accounts if you do not manually manage this.

I submitted code for developers to implement a auto-managed MAC and ID0, but nobody has implemented it yet.
* https://www.meshvault.net/8BIS83LU771K/n...r.zip.html

Actually, this is a common mistake most users make.

Anytime you have logged onto secondlife . com for any reason and logged into your account, your IP and computer details have been recorded, you can go to ipleak.net and everything it shows is everything LL has recorded about you by default and probably a lot more than it shows, so, unless your alt was made under a vpn and never accessed any LL web / viewer content except while under the vpn, they can trace you back to all your accounts if they wish to.

Now, if like you put the mac & ID0 are different and have never been used for anything but that alt, then a user could argue if they in a country that only uses dynamic IP addresses that it was someone else, or LL may look  and think it not worth the hassle to explore, but then again, sharing accounts is against LL's ToS, so you could get banned for that if they think your account is compromised.

So bottom line is, always think what you have done with the account as well as the viewer before doing naughty things


EDIT 22 04 2021
since i have edited haiwashu's post which is containted in this post, 
i have edited the quote.
nails.