SG Broadband Community

PhyberOptix

In all honesty, you should get an entry level job in a field you are interested in and then study all you can to advance yourself. It sounds as though you are looking for a get rich quick scheme, but you won't find one.
If you want to make money, you need to spend time studying, working hard, and ...

PhyberOptix

zxc is correct that SX is multimode and LX is singlemode fiber, but the difference this makes is distance. SX (short haul) can reach up to 220 meters. LX (long haul) can reach up to 5000 meters.

PhyberOptix

Just wanted to chime in on whether or not 9 devices on a hub is too many....This is an *extremely* relative question that can't be answered w/out traffic analysis.
If I have 2 devices on a hub that are both constantly trying to send 100Mb worth of data, then my hub is a bottleneck.
On the other ...

PhyberOptix

Couple more things....NAT looks fine from a config standpoint (you only need a single NAT pool - and you are only using the net-1 pool at this point) and you may want to remove the final line from access-list 5. You only want to allow telnet access from your subnet or from a trusted IP (which is ...

PhyberOptix

You don't need RIP....Your default gw is on a different subnet from your Ethernet IP address. Point the default gw out your physical interface (ie. ip route 0.0.0.0 0.0.0.0 e1).

Post the output of the following....

trace 213.73.255.254
trace 212.58.175.1
trace http://www.cisco.com

After you've ...

PhyberOptix

Yes Tom, I see what you are saying and I do agree. I think we were meaning two different things from "design and engineer". From my perspective (and my perspective is from the CCIE side of spectrum), I see design and engineering as things such as - design the protocol scheme for the network, setup ...

PhyberOptix

Tom

While I agree that a degree is certainly desirable, you can't argue that some certs are very beneficial - such as the CCIE. I have no degree, but I do have 5 yrs production experience (3 of which are with routers/switches) and some mid-level certs.

I'm currently a Sr Engineer for a pretty ...

PhyberOptix

Learn some "maturity" and then call me.....

PhyberOptix

Hey illest

I'm a CCNP (taking the CCIE lab in 4 months) and I would certainly echo what cableguy said. The market is flooded with people who have their CCNA/P but don't have production experience w/ routers.
Due to layoffs and the economy there quite a few people w/ routing experience who are ...

PhyberOptix

What model of router is it? Were you able to recover the password and erase the config?

PhyberOptix

I agree w/ Kip. Really bizarre, time to use a sniffer.
I'm convinced your router is fine. If it wasn't in bridged mode we could use "debug ip packet".
Do you have a sniffer on your pc?

PhyberOptix

Ok, you have a very basic config. Everything looks correct and there are no filters/ACL's setup, so let's look at this systematically....

1. Open a DOS prompt and type "ipconfig /all". Note your DNS servers IP address. Can you ping them?
-If yes, this tells us the Cisco is correctly transporting IP ...

PhyberOptix

DHCP doesn't have anything to do w/ the problem....

You say the problem isn't with the browser b/c the browser works w/ another bridge and I understand that.
I say the problem isn't w/ the router b/c the router works w/ other apps (such as your DOS prompt).

Post the config so I can take a good ...

PhyberOptix

Cisco 826 - 28.
Check out this link for more info...

http://www.cisco.com/univercd/cc/td/doc/pcat/827.htm

PhyberOptix

If you can ping IP addresses from your pc then the router isn't the problem (also, the config looks fine). If you can ping http://www.yahoo.com (as an example) from a DOS prompt then your DNS server is working as well. This points to the browser.

Post all of your config and I'll make sure there ...

PhyberOptix

Don't change to half duplex...Collisions are what is causing your current problem.
I imagine your Linksys is an autonegotiate switch, correct? If this is the case you *must* set your end pc's to auto also. If one end tries to autonegotiate and the other end won't (when you have it hard set to ...

PhyberOptix

I'm reading over the posts and from what I gather the discussion is over naming standards. So you have a DSL "device" that bridges, routes, filters, modulates/demodulates, logs, etc etc. I would say that common terminology refers to this as a "modem" b/c that's its main and most common function. Not ...

PhyberOptix

A router could introduce anywhere from > 1ms to several seconds if it's *really bad*. This is all very relative though to the router. Several things that would affect latency on a router would be....
packets per second capability
memory util
processor util
current load
processing level (meaning, how ...

PhyberOptix

Yes, they are two different cmds. They are both entered in config mode.

The exact model of Sniffer I have is Sniffer Distributed ET05.

Good luck

PhyberOptix

Quick update....RFC 3118 has been approved. This defines DHCP authentication through an exchange of encrypted passwords btwn configured hosts and dhcp servers. This allows a dhcp server to authenticate users and users to authenticate the server.

Here's a link....
http://www.faqs.org/rfcs/rfc3118 ...

PhyberOptix

Syclone

It's cool, just understand that it's common knowledge to quote your source. The gain for accusing you of plagerizing isn't to boost my standing (I hardly see how it does that anyway), but rather to get you to stop taking credit for other peoples original thoughts. Regardless of whether it ...

PhyberOptix

Phantom???? You ok?

PhyberOptix

Sorry, didn't see the followup...

I don't know that you can download it for free. I use a registered copy at work and haven't looked around the site for a trial version.

Two things...First, if you get a sniffer you'll need to turn on port monitoring on the Cisco switch...

int fa x
port mon <vlan ...

PhyberOptix

"No need to do any accusing here unless you yourself ar insecure with your amount of knowledge in comparison to mine."

Whoa....You may want to take a step back and rethink that statement. First, it's common knowledge that you should absolutely point out when your statements are quotes from other ...

PhyberOptix

"I am glad someone on here besides me is into this newer technology and can conversate with me on it"

Actually, I've read very little on v6. I'm a CCNP and studying for CCIE lab so I spend quite a bit of time reading....

I probably won't get in depth into v6 for a while. My current plans are CCIE ...

PhyberOptix

"So your saying that this burden would fall solely on the layer 3 device or network layer device namely a router and the protocol wouldn't have to bother with it? "

Nope. If you are wanting to authenticate IP address assignment, that burden would fall on the device handing out IP's - namely the ...

PhyberOptix

"One new feature is the improved option mechanism which seperates optional headers between the ipv6 header and transport layer header. with this you will get improved speed and simpler router processing because most are not examined by intermediate routes."

I don't get what you are saying here ...

PhyberOptix

Check out http://www.sniffer.com

PhyberOptix

Hey Syclone
I'll respond to your original post...

The problem you bring up has nothing to do IPv6. Recall that IP is a network layer protocol (L3) that doesn't have the slightest concern for security - by design. This design wasn't something overlooked, but rather is left to higher layer protocols ...

PhyberOptix

1. - Yes, the quality of a program can absolutly have an affect on speed. As an example, I worked at company once that had about 100 or so people accessing a database over a 512Kbps Frame circuit. After experiencing very slow response from the database, management figured it was the bw and had us up ...

PhyberOptix

For a straight through cable it doesn't matter what order the colors set. It only matters that they match on both ends of the cable. Ex...

Orange
Orange White
Blue
Blue White
Green
Green White
Brown
Brown White

You just need to make sure that you keep the colors in the same order on both ends.

PhyberOptix

It sounds like you are starting to get a better grasp of this, but you're still just a bit off.

There aren't different types of T1's. You either have a T1 (which is 24 Channels) or you can have an E1 (this is the European standard which has 32 channels). There is no such thing as a T1 with 27 ...

PhyberOptix

Ok, now you are saying what I think you've been trying to say all along. The problem is, it's still wrong. ;)

A T1 has *nothing* to do w/ an IP address. When I buy a T1 or Frac T1 from the telco, it doesn't automatically come with IP addresses. I have about 50 T1's in my network and none of them ...

PhyberOptix

I think I get what you are trying to say. You aren't saying that multiple IPs assigned to a single NIC result in lowered latency (I'm assuming you were just confused when you posted this earlier). You are saying that multiple internet connections, whether that be DSL, Cable, T1, T3, etc etc will ...

PhyberOptix

No that's not what I think you are saying. I think you are saying that by assigning multiple IP's to a single NIC you are able to improve throughput and/or lower latency. What I do not understand is why you think that multiple IP's equals improved performance.

PhyberOptix

I will wait until you have had a chance to completly explain your theory before I post a response.

I don't want to come across as a jerk but you posting in caps and telling me that hopefully I can understand logic isn't exactly friendly conversation.

PhyberOptix

Slow down for a second. Take a deep breath. Whew. Feel better? Ok, lets talk for a second.

If you have a degree in MIS or CS, as you claim, then you must have at the very least a basic understanding of IP. If you have this basic understanding then you also understand that what you are concluding ...

PhyberOptix

Phantom
I wasn't attempting to be condescending when I suggested "TCP/IP Illustrated Vol. 1". This is pretty much the definitive source on IP and a must read for anyone in the field.
As for your "logic", I hope you can understand why it really itsn't an extra IP address that is resulting in less ...

PhyberOptix

Cyberskye
No, bw isn't segmented on a per IP basis. Having additional IP addresses in no way buys you more bw.

Phantom
I don't know who told you that having additional IP addresses on a server gives you more bw, but they were pulling your leg. If you are interested in really learning TCP/IP, check ...

PhyberOptix

Phantom
You showed a picture and gave a link to a DSLAM. This is used to aggregrate DSL lines. Unless the original poster is wanting to start an ISP I don't think this will do him much good.
When you say "shotgun all 16 into a server", what do you mean? Are you saying he should assign a server 16 ...

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