Linksys routers can't be sniffed at any more
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Calpitor,
Thank you for the "heads up"!!
Spaceman
Just installed the firmware seems to be working just fine. Thanx
Does this upgrade require that the router settings be entered all over again or do changes all take place in the back ground?
Thanks.
All settings have to be re-entered on my BEFSR41 V1. That part stinks!
Thanks Big - Dave. That means I will forego the firmware update. It's just not worth it. The last time I had to re-enter all the settings it took me and my ISP a dozen trys 'til we got it right. Mine ain't broke, I ain't gonna fool with it 'til it is!
You should read the changes made to the firmware, a lot of fixes.
1.45.11 Jun 4, 2004
1. Fixed CGI string attacks issue
2. Fixed UPnP on Windows XP SP2 issue
3. Fixed One way audio issue
4. Fixed NAT-T issue for some VPN connection
5. Fixed DHCP server revision, fill the siaddr to the server address
6. Fixed DHCP (BOOTP) vulnerability issue
7. Added Filter IDENT(port 113) to appear stealth when scanned
8. Added DHCP option 55 support
9. Fixed buffer leakage bug
10. Modified TCP Support RFC 3360 standard
11. Modified PPPoE/L2TP/PPTP fragmentation supports fragmenting
1 packet into more than 3.
12. Modified MTU/MRU function for better handling
OK. I did it. Version 1.45.11 successfully installed. My settings were undisturbed. I did not need to re-enter any of the router's settings.
---ditto---
all is well.
SM
Yep my settings were left intact as well
Thx Calpitor, I'll be trying the upgrade tonight. Any I've done in the past went well so I expect this one to as well. Thats quite the list of worthwhile changes!
Perhaps this should be a sticky?
Thanks Calpitor! ;)
Easy upgrade,had to re-enter a forwarding setting,but no big deal. Now we'll wait and see how well my new Motorola SB5100 cable modem likes it when it get's here about Friday.:)
Thanks Calpitor!
I gotta say I somewhat surprised how many people around here were/are affected. But then maybe it speaks volumes for the quality and popularity for Linksys. Glad to help.
Done Done. And thanks Calpitor for passing this info along.
Done, no settings were changed, renamed, denamed, or harmed in this upgrade on my BEFSR41 V1.
It looks good.
Thx Dr. Cal
For those interested, some other user experiences with the new firmware on the befsr41 can be found here. Some users have reported DHCP lease renewal problems.
Also, for people with V3 of the SR41 the vunerability mentioned here still exists with the new firmware, but a workaround is mentioned in the report.
Thanks DrMDJ.
I checked your link to the posts on DSL Reports. To be honest, I really don't understand what most of them are talking about. My router is set up to obtain an IP address automatically. I don't understand all that other stuff. All I know is that mine seems to be working OK for the several hours that I was on line following the firmware upgrade.
Those people having all the problems - are they using their routers in a manner different from the average user; i.e., plug it in and forget about it?
Done mine too with no probs, thanks Calpitor.
rwinegar,
If you're not seeing any problems then that's good. I only pointed out the thread in the link above because it showed some people seemed to be experiencing a couple problems with the new firmware, and so that people here might be aware of these problems (as well as any solutions). As you can tell by reading the thread not every one is having problems, but some are (and in answer to your question: the bulk of the people are using their routers in a "normal" way).
The main problem some seem to report is that their ip lease does not renew automatically when it expires. The short version of what this means is as follows... If your broadband provider provides you (the router actually) with a dynamic IP address then when you connect your router recieves an address from the ISP DHCP server. A length of time is also established during which the address is valid (lease time). After this time (or during this time) the address must be renewed (or a new one gotten). Normally the router will automatically take care of this renewal. But what some people seem to be reporting is that the lease time expires and the router does not automatically perform the renewal process. The result: internet access is disrupted, and the user must manually (via the router admin screens) tell the router to renew (or obtain a new) address.
This certainly doesn't seem to be happening universally. But may be something for folks to be aware of and keep an eye out for.
Thanks DrDMJ for that explanation.
I've been running more than 24 hours with the firmware upgrade and have not experienced any problems. I think Linksys will need to patch this one real quick.
I have the Linksys router BEFSR41 version 3.
I followed the link, and clicked on the "download firmware", the saved it.
But, I could not open the file for the upgrade.:confused:
Please see attachment.
nganvu,
It looks like your link is to the page for the downloads, not the downloads themselves.
You need to download this file (the actual firmware), and this file (the firmware updater program. Then download this file. It is the instructions that explain what you need to do to actual perform the update.
Well, I downloaded the first link (the actual firmware), and please, look at what I got:
You only downloaded 1 of the three files I mentioned. You also need the flasher program, plus the instructions that will tell you how to flash the firmware on your router.
Let me download your three links, then I will post back.
No problem. The third file is the documentation that will outline exactly what you need to do.
DrMDJ:
I got it, finally.
Thank you so much for your help.
Have a nice day!
Ngan
Good deal! You're all set now.
It didn't work out for me in the end, I'm having the problems that DrMDJ mentioned. Now all I have to do is find the old firmware from here ftp://ftp.linksys.com/pub/network/
All the firmware versions here ftp://ftp.linksys.com/pub/befsr41/
I'm now using 1.45.7 OK so far.
FYI...
A new version (1.46) was released June 24 which fixes a problem where the router wouldn't properly renew the WAN IP
http://www.linksys.com/download/
I already upgrade mine on 06/10/04.
What else do I need to do now:confused:
Thank you
If your is working just fine. Nothing.
As that update was for those who were having the problem as Rapmaster posted.
Thank you, Train.
Oh! My Lord!: 18781 posts. Congratulations, Train.