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Topic: Some sites not working?
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Topic: Some sites not working? (Read 12844 times)
Some sites not working?
« on: April 16, 2008, 06:52:35 »
byzuser
Posts: 21
Here's a strange one; some websites do not 'work' when I try to get to them through the m0n0wall.
Traceroutes for these sites complete, on the comp and on the m0n0wall, but trying to get to them through a browser gives me timeout errors.
It is a small number of sites; more things seem to work than do not, but this still should not be happening.
My connection is via a cable ISP, and a direct connection from the modem to the comp shows that everything is 100%. It is only when routed through the m0n0wall that these sites fail.
There are no firewall rules that I know of that would be causing this; it is a rather fresh install of 1.3b11, with maybe 8-9 NAT rules created (and their corresponding auto-created firewall rules), and that's about it.
Any insights?
Thanks in advance =)
Re: Some sites not working?
« Reply #1 on: April 16, 2008, 09:03:17 »
ChainSaw
Guest
Have you tried checking the box to "Allow fragmented packets" in your "Default LAN to any" rule? Also, check "Interfaces" under "Status" and see if you are logging any "in/out errors" on your WAN or LAN interface.
CS...
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Last Edit: April 16, 2008, 09:18:35 by ChainSaw
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Re: Some sites not working?
« Reply #2 on: April 16, 2008, 16:50:08 »
byzuser
Posts: 21
Interfaces under Status is showing 0/0 errors...
I just turned on the "Allow fragmented packets" on the "Default LAN to any" rule, and it did not fix the problem; I still get a timeout error on these specific sites.
The packet fragmentation did remind me about my MTU; this cable connection is new and I had not fixed the MTU for it yet, so I did the ping -f -l test and found my max to be 1432. + 28 = an MTU of 1460, which seems to be correct... so I set my MTU to that and rebooted...
Still getting timeout errors on the sites.
Grr, very strange. Any further thoughts?
Re: Some sites not working?
« Reply #3 on: April 16, 2008, 23:19:25 »
ChainSaw
Guest
very strange indeed. I can't really think of anything else to try. also, your cable connection MTU seems strange as well. all the cable connections I have dealt with have been 1500. have you tried more than one PC for this test?
CS...
Re: Some sites not working?
« Reply #4 on: April 17, 2008, 02:41:58 »
byzuser
Posts: 21
I have multiple computers on this network and long story short: same problem on all of them.
I just reset the router to 'factory defaults' or w/e it's named in the menu, set up my interfaces and left everything else as default: same problem still.
And just to make sure I'm not crazy, tested things through a direct connection to the computer again, and the problematic sites indeed work this way.
^ That is kind of 'proof' that it's nothing that my computer(s) is(are) doing really; the simple fact of the traffic going through the m0n0wall causes the problem.
I'm at a complete loss here. 1.3b11... is this something the devs could/should look at? -- I think I've exhausted my own options as well and if it's some sort of bug, I'd be happy to do what I can and help squash it...
Thanks again CS/all =)
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Last Edit: April 17, 2008, 02:52:16 by byzuser
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Re: Some sites not working?
« Reply #5 on: April 17, 2008, 03:00:19 »
ChainSaw
Guest
I'm running 1.3b11 on 32 production boxes without a single problem of any kind. At this point the only thing I could think of is possibly your m0n0wall's hardware. Try different NIC cards and if that doesn't help try a different PC. seems to me that if this was a m0n0wall bug, you wouldn't be the only one reporting it.
also, if your hardware support it, try running 1.233 and see if that makes a difference.
CS...
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Last Edit: April 17, 2008, 03:22:17 by ChainSaw
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Re: Some sites not working?
« Reply #6 on: April 17, 2008, 03:32:10 »
byzuser
Posts: 21
Hardware is an Alix 2c3, so can't change NIC cards... not sure if it would be supported by 1.233; I did try it first, but it seemed that you -have- to have a null modem cable for it; doesn't seem to have any default interface settings to allow you access to the GUI first.
Or if it actually does, then it just must not have ever gotten booted, because I couldn't ever even ping it.
1.3b11 booted as expected though.
Could indeed be the hardware... would it be worth it to try say, pfSense and see if it happens there?
I mean... if it -doesn't- happen with pfSense and does with m0n0wall, that'd be a bug right?
Re: Some sites not working?
« Reply #7 on: April 17, 2008, 03:39:51 »
ChainSaw
Guest
are you using the WRAP version of 1.3b11? if not you should be. it could also be related to your alix firmware. I don't think there is any way of checking that without a null modem cable. why don't you throw an old PC together and see if you can get that working.
CS...
Re: Some sites not working?
« Reply #8 on: April 17, 2008, 03:52:05 »
byzuser
Posts: 21
Yep, I'm using the WRAP image of 1.3b11.
Holy crap I didn't think to check the firmware. Whoops.
Yeah I'll do that ASAP... (smacking head at having forgotten that). Now to find a cable...
I'll report back soon enough.
Thanks CS! =)
Re: Some sites not working?
« Reply #9 on: April 17, 2008, 03:58:21 »
ChainSaw
Guest
as I recall the last alix I flashed required booting DOS and running a .com file. I now have a CF card setup for just that purpose. very dumb in my opinion to release a product without the BIOS upload function working.
Good luck!
CS...
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Last Edit: April 17, 2008, 06:21:01 by ChainSaw
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Re: Some sites not working?
« Reply #10 on: April 17, 2008, 06:38:56 »
byzuser
Posts: 21
Yeah... I only have the one CF card too.
I'm not sure if I can (easily) flash FreeDOS onto this one, use it to update, and re-flash m0n0 back on, or not.
Wondering if I shouldn't get a spare tiny CF card for this purpose... but I kind of hate to because if I can't get this working in a reasonable amount of time, I'll have to return/sell the Alix, and I don't want leftover stuff I don't really need.
Hmm.
Re: Some sites not working?
« Reply #11 on: April 17, 2008, 06:52:04 »
ChainSaw
Guest
there should be no problem with using your current CF card to flash your BIOS then re-image with m0n0wall. what version is your alix BIOS now?
CS...
Re: Some sites not working?
« Reply #12 on: April 17, 2008, 16:10:25 »
byzuser
Posts: 21
I am not sure of its current version...
Is there a way to check from within m0n0wall?
Re: Some sites not working?
« Reply #13 on: April 17, 2008, 17:23:40 »
ChainSaw
Guest
I don't think so. You need to be connected to the serial port when it boots.
CS...
Re: Some sites not working?
« Reply #14 on: April 17, 2008, 17:34:36 »
byzuser
Posts: 21
Thought so. No cable just yet; will be finding one today.
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