DoS unknown_protocol Block

[smeghead]

I am using a Draytek Vigor 2600 router and in my syslogs I keep getting entries along the lines of:-
"DoS unknown_protocol Block 212.69.63.51 -> 224.0.0.13 PR 103 len 20 54"
and am curious what is DoS unknown_protocol Block 212.69.63.51 ?

I know what a DOS attack is, but I've never seen the "unknown_protocol Block" entry before.
Can somebody please explain?
Thanks

[Inactive]

I can't, but I can offer you a warm welcome to the forum, along with a welcome Karma..

Someone will give some advice very soon

[Rik]

Like In, I can't explain, but welcome to the forum.

Does this help at all?

[Simon]

There's little I can find on Google about this, but I would guess it could be a port scan block, i.e. your router firewall doing it's job.

As Inactive said, I expect someone will be along soon with more advice. 

[Rik]

Google was a tad obfuscating I found.

[MoHux]

Google was a tad obfuscating I found.

Some people obfuscate things deliberately .......... (in fact me an In' are always obfuscated!!) 

[Rik]

I've never heard it called that before, Mo.

[Inactive]

.......... (in fact me an In' are always obfuscated!!) 

You ain't wrong Mo.. 


(PS. How is the eye ? ).

[MoHux]

I've never heard it called that before, Mo.

Now who's obfuscated? 

Fine thanks In', due back for the final post-op check next Weds.  May have to put it off tho', I have a stinking cold at the moment.
I have asked for 'hoods' over my eyes to be removed, they are spoiling things a bit.  I think my forehead wants to move to my navel!    So hopefully that's next. 

[Rik]

Good to hear that things are going well, Mo. In and I could do the job on the hoods for you with a length or two of Duck tape. 

[MoHux]

Good to hear that things are going well, Mo. In and I could do the job on the hoods for you with a length or two of Duck tape. 

Oh! Gawd! ........... I forgot to switch off the web-cam again!!