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3 days ago
Be very careful of KB976035. It's broken, on one system anyway. The hotfix title is "Update Rollup for the TCP Chimney Offload feature in Windows Server 2008 and in Windows Vista" Seems to be MS's latest attempt at fixing the persistent issues with ToE. Under Vista x86 SP2, (Dell D830 with BCM57xx NIC, Intel Wifi 5350, Dell Bluetooth 360) the update causes a BSOD. But, the crash is only detected when using Driver Verifier. This means the hotfix appears fine but actually has bugs in it that will probably eventually cause weird behaviour or a BSOD, The STOP bugcheck is 0x000000C4 (DRIVER_VERIFIER_DETECTED_VIOLATION ) WinDbg shows: Probably caused by : tcpipreg.sys ( tcpipreg!InterfaceAddressRegKeyChangeHandler+b2 ) Backing out this hotfix in safe mode resolved the issue.
145 days ago
Been having troubles with Cisco 870 (877) routers with recent IOS revisions. Earlier revisions had lots of bugs, some nasty and some cosmetic but the real need for a recent release is the improvement in SIP ALG and the addition of several features. Unfortunately the newer releases aren't much better. Seeing serious issues with 12.4(22)T where after a month or so the router runs out of contiguous memory and stops. It doesn't reload - it just becomes incapacitated, which is much worse than a reload. Syslogs show increasing memory fragmentation (rather than a leak per-se). 12.4(24)T is worse - it reloads every half-hour. Haven't been able to grab the console debug yet. Another bloke has blogged similar issues - I've pinged it here http://www.alcatron.net/wp-trackback.php?p=154 Update: c870-advipservicesk9-mz.124-24.T1 is stable, both on NAT and SIP ALG.
274 days ago
Nice page about defragmentation.. and not just files, but the important stuff.
286 days ago
A warning if you use Cisco IOS-based PPTP VPN's. I've got a 2651XM running 12.4(15)T5. I was having terrible trouble establishing a vpn from Visa SP1 - the tunnel would just not work, the "verifying username and password" prompt just timed out. I was using the config I posted in another blog entry which worked fine on a c837. I tried everything - pulling MPPE and using PAP - to no avail. Turns out the command "ppp lcp predictive" under the Virtual-Template was killing it - and no debug would clearly show what was going on. So beware...
287 days ago
Having a need for a small-business groupware solution (specifically for project management, task management and possibly timesheeting, issue tracking) I started to poke around to see what's around. My preference is ASP, SQL based. Here's a shortlist: *Stylite Egroupware http://www.egroupware.org/Home -New release Oct 2008 -PHP under IIS (XAMP recommended) http://www.egroupware.org/index.php?page_name=dependencies&lang=&wikipage=php -MySQL5 (MSSQL "sort of works" -Free - vendor sells managed, hosted services -Windows Mobile vis Synthesis client via SyncML -Features: http://www.stylite.de/EGroupware_functions Good task management and tracking, calendaring, contacts (not sure about how well Outlook/Windows Mobile sync works), web-based file manager (not quite Document Management but is WebDAV enabled) Knowledge management (articles etc), resource bookings (cars etc), timesheets linkable to anything on the server, *Redmine ...
