Linksys Routers
Mar 29, 2007
I do not know if this is the right forum to post on, or if this is even the right site since this is not technically "Web Hosting" related, however it is the largest technical community I know of.
I have been setting up small networks in various branches of a medical company. I am using a linksys wired router connected to a static IP through a SDSL modem. The DHCP is disabled, and the two computers and the print server have also been assigned static IPs.
The problem I am having is that the linksys router will work fine, and then go offline.
The linksys router will no longer be pingable internally. Unplugging the router from the power briefly then plugging it back in resolves the problem temporarily. Sometimes it will become unresponsive again within 30 seconds to a minute, however other times it will go days without this problem occuring.
I thought it might be a defective router, however I took it back and got a replacement, however this is continuing to occur, so it must be something else. The two computers are Windows XP with static IPs set to 10.88.102.xxx as well as the print server. and the subnet mask is 255.255.255.0. The gateway has the IP 10.88.102.1. The mask is set as the same on the router side. The DNS server IPs are the ones given by the ISP and are defined in both the client TCP properties and on the router.
I figured since the network was so small, it would make sense to just buy a cheap linksys router, however the response I got from someone at experts-exchange says that this is just the MO of the crappy residential end of linksys. This surprises me since linksys is a division of cisco.
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Jan 21, 2008
My roommate ran into this problem a few weeks ago. He could not connect to a webserver. Turns out it is the way that some of the ports are being handled when passive FTP is used.
I was wondering if a lot of web hosting companies are seeing some complaints of (passive) FTP not working properly? And who are you blaming?
He had to install some firmware updates to the Linksys router as well but then that started to crash the Internet connection (something we cannot have). So the router update was uninstalled.
He had to do quite a bit and finally started to use the control panel to upload. He has not tried FileZilla yet but I tried it on my system to connect to his server and it failed.
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Jul 7, 2008
I just got a new managed switch, SRW224G4. I'm planning to setup MRTG on another server to monitor this switch's network ports. How do I go about setting up the MRTG to 'read' the statistics from the switch?
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May 26, 2008
I use a Linksys BEFW11S4 at my home and at my office. A few months back I replaced the one at my office with a linux gateway because I found some weird routes to Department of Defense IP addresses. I assumed there was a backdoor or something but didn't give it any more thought.
I'm now looking at the static routes on my home router and I found something very peculiar. I've attached the screenshots.
Basically there is a static route to 128.60.31.208 which according to ARIN is registered to the "Naval Research Laboratory". The subnet mask looks very very odd - 124.171.0.0
Perhaps I'd just assume that this was a firmware bug, but isn't it a big coincidence that the first time I found routes to the DoD and now I'm finding routes to Naval Research Laboratory?
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Jan 20, 2007
i have just installed esx server from vmware which as far as i know is a moded version of redhat. i just brought that lan card and put it in. when intsalling the os it seemed to pick it up straight away. and it wanted to use the tulip driver and infact on the driver cd tuplip is given. so i thought it was all well uptill i tried logging in through the browser insterface. it came up with nothing. so i did ifconfig which only showed the lo device. i then did a lsmod tulpis ind it brought up this.
vmnixmod size 3
mousedev
hid
input
usb-uhci
usbcore
but no network drive.
im not very good with linuk so im not sure what the interface is called. i tried ifconfig eth0 up but i dont know how to check if its called eth0 or somehting else. their is no gui just a bash.
i then tried netconfig. it worked fine and i restarted the box. it still dident come up.
so i thought maybe the driver wasent installed after all so i went to the cd and got the file off it and when i typed in make i got
gcc -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -06 -I/usr/src/linux/include -pipe -fno-strength-reduce -DMODVERSIONS -c -o pci-scan.o pci-scan.c
pci-scan.c: In function 'init_module':
pci-scan.c:558: wrning: implicit declaration of fundction 'apm_register_callback'
pci-scan.c: In function 'cleanup_module':
pci-scan.c:565: warning : implicit declaration of function 'apm_unregister_callback'
gcc -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -06 -I/usr/src/linux/include -pipe -fno-strength-reduce -DMODVERSIONS -c -o tulip.o tulip.c
tulip.c: In function 'tulip_open':
tulip.c:1488: structure has no member named 'tbusy'
tulip.c:1489: structure has no member named 'start'
tulip.c: In function 'tulip_start_xmit':
tulip.c:2607: structure has no member named 'tbusy'
tulip.c:2640: structure has no member named 'tbusy'
tulip.c: In function 'tulip_interrupt':
tulip.c:2659: structure has no member named 'interrupt'
tulip.c:2663: structure has no member named 'interrupt'
tulip.c:2744: structure has no member named 'tbusy'
tulip.c:2748: structure has no member named 'tbusy'
tulip.c:2845: structure has no member named 'interrupt'
tulip.c: In function 'tulip_close':
tulip.c:2991: structure has no member named 'start'
tulip.c:2992: structure has no member named 'tbusy'
tulip.c: In function 'tulip_get-stats':
tulip.c:3031: structure has no member named 'start'
tulip.c: In function 'private_ioctl':
tulip.c:3117: "SIOCSPARAMS' undeclared (first use in this function)
tulip.c:3117: (Each undeclard identifier is reported only once
tulip.c:3117: for each function it appears in.)
tulip.c: In function 'set_rx_mode':
tulip.c:3303: structure has no member named 'tbusy'
make: *** [tulip.o] Error 1
so now im stuck. i have no idea on what to do next.
i know this isent the speciality of thsi frum but you have helped me so many times before i thought i should give you a shot at this.
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Mar 25, 2009
I am on a tight budget for a Cisco firewall. I am browsing and seeing some affordable options in the x600 series.
Please tell me, which series is best?:
1600
2600
3600
The higher the better?..
Also what about submodels, like is 1650 better than 1600?
And how can I tell how much DRAM each one can take up to?
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Aug 31, 2007
Has anyone here successfully implemented two or more OpenBSD routers for the purpose of BGP'ing between two or more providers?
My intention is to have the following setup, each line is per provider:
--> BSD Router --> Switch --> Bridge Firewall --> Switch --> ...
'''''''''|'''''''''''|''''''''''''''|'''''''''''''''|
--> BSD Router --> Switch --> Bridge Firewall --> Switch --> ...
'''''''''|'''''''''''|''''''''''''''|'''''''''''''''|
--> BSD Router --> Switch --> Bridge Firewall --> Switch --> ...
The idea would be that I could lose any 15A circuit, switch, firewall or service provider and still remain up. Full routes for the routers. Spanning tree on all the switches.
We have the OpenBSD routers up and running in our lab, I'd say they are 90% ready, but we're having internal routing issues when it comes time to fail-over. I know we'd have an easier time if we used just one router with a NIC per provider, but I was hoping for more redundancy.
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Jan 24, 2008
However..it's time to learn.
There is no doubt in my mind I'm going to Houston. The prices they have..it's unreal. Take a look:
[url]
And that's just one. The real fun starts when they start beating each other's quotes.
Ok..on to what need here:
If I have a cage at Level 3..is there a way to estimate routing/switching needs on a per-rack basis? In other words..can you estimate: Ok 1 full rack...say...30 servers..and you're bringing in one of those 100mbps eth drops...to start.
and you want capacity for..say..three more racks from the getgo.
Is there software for this? Or can you guesstimate on ip use-how many ips you think you'll need routing for?
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Apr 4, 2008
I have a lot of dedicated IP accounts that I want Exim to send mail from (in other words, not to use the shared/primary IP of the server).
Has anyone successfully configured cPanel/Exim to do such a thing, such as this:
[url]
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Sep 11, 2007
We have the requirement to guarantee bandwith to one of our clients.
We have a large collection of vlans and we either need to guarantee bandwith to a set and from a set of IP's or a vlan.
We currently throttle using rate-limit but wan't to dedicate 2mb of our 10mb leased line to 1 client.
We are using a cisco 3600 running IOS 12.0.
Has anyone got any ideas as to how we can go about this?
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May 20, 2008
I have a server with several sites hosted on it. Randomly, a site user will find that they can no longer connect to any of the sites on the server - but they can connect to the rest of the Internet. When this happens, the sites themselves are fine and everyone else can connect without any problems.
The only way the affected user can view sites on the server again is to reboot their router - at which point everything is fine.
why this would happen? I have a CentOS (Red Hat Enterprise) Linux server with DirectAdmin, Apache, PHP/MySQL - the usual. I'm thinking that there must be some kind of network setting which is allowing this to happen, but I can't for the life of me work out what it is.
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Jan 6, 2007
my linksys switch comes with a web control panel under "qos" where i can control bandwidth there is Ingress Rate Limit and Egress Shaping Rate, what are they?
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