Weblog entry #3 for mektroid

Low MTU...
Posted by mektroid on Thu 11 Oct 2007 at 15:38
Tags: , ,
Now I discovered a new problem. Before I wasn't considering important nor noticed but my friend have his Xbox and tried to connect on the Live service. He couldn't log on. I checked closely and notice that his Xbox wouldn't connected unless it gets a higher MTU value of 1465. I was suprised because normally it sets to 1500.

So I tried each interfaces (3) to see if one was defect but apparently it wasn't. I have also did the same on plugging it do my Linksys router which gave the normal value of 1500. I'm confused.

I tried to force the value inside the network/interfaces file but it didn't.

Does anyone have a suggestion?

 

Comments on this Entry

Posted by GhostR (80.128.xx.xx) on Tue 16 Oct 2007 at 19:31
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Hi mektroid,

I followed more or less your last post about the 3 NICs, and now your current one. It seems to me like your new to firewalling (sorry if I m wrong).
So I m not that big of a wiz either!

I strongly recomend you shorewall (I think others did before), I run it on my router at home and I used to play live every once a while, even with the "xbox xlink kay tunneling software" over WLAN (linksys AP) works great. plus its easy and I want to call my FW setup kinda advance, I wrote custom plugins, do port knocking, got ipsec and ppp vpn up and running to connect from work and from on the road, scan protection, seperaste subnets for unsecure wireless... its all good, add some ulogd and your set. There is so much good reading out there about shorewall. plus if you have alot of useres you can adappt fast to knew tasks and change it back fast. (and there are mtu settings :) )
you can do so much neat stuff with it in less time. belive it or not, I even run it on servers (even when steves last fw post got me thinking).

I might be full of it, but it made no sense for me to go so deep into iptables it self, of course you really need to know what your doing if you setup a "complex" routing/firewalling with shorewall. the options are limitless!

Toby

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Posted by mektroid (74.56.xx.xx) on Tue 23 Oct 2007 at 04:20
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That might be a good option since everybody are saying it.

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