Hi,
Is there a general problem with Cisco and DHCP? Did get a lot of SA's
regarding DHCP and nearly any OS!
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Hi,
Is there a general problem with Cisco and DHCP? Did get a lot of SA's
regarding DHCP and nearly any OS!
Just starting at IOS 12.5 aehm 15.0 ,
They claim that the 12.0 12.2 12.3 12.4 based releases are not affected.
Juergen.
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Infrastructure Security Survey - a survey of service providers, enterprises,
government agencies, universities and
hey all,
I am looking for a free software for security management
any suggestions ?
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Mohammad,
You mean open source ?
PFsense, IPCop, Untangle, ect
Unfortunately this list is not on what you need.
rgs
a. r. isnaini rangkayo sutan
Mohammad Khalil wrote:
hey all,
I am looking for a free software for security management
any suggestions ?
Hypothetically, if there is no L2 or L3 security in place, would it
be as simple as creating a sw acc vlan 230, and allowing 230 on the
trunk port on my switch to start scoping about at the other end?
Well, the L2 security in question is that on the other end of the
trunk, it *should* be
Geoffrey Pendery wrote:
Hypothetically, if there is no L2 or L3 security in place, would it
be as simple as creating a sw acc vlan 230, and allowing 230 on the
trunk port on my switch to start scoping about at the other end?
Well, the L2 security in question is that on the other end of the
I have a shared L2 environment with a local company, in which we have
numerous VLANs over fibre. I'm in the process of moving to transparent
on all of my switches, and during the work, I'm checking things out.
Doing a sh vlan produces output that includes VLANs that I shouldn't see:
230
-nsp] security
Actually, ARP does *not* use any IP broadcast address at all, neither
limited or subnet broadcast.
Because it isn't using IP...
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On Wed, Dec 3, 2008 at 9:14 AM, Adam Greene [EMAIL PROTECTED] wrote:
Thanks for helping me brush up on basic networking! :)
Under what circumstances would directed broadcast actually be a useful
feature?
Wake-on-LAN. That's the only reason we permit directed-broadcasts.
Tim:
1. Thanks for the awesome explanations. I've been dealing with these
terms for a while, but had not really grasped them too hard until now.
(To be honest, I had not looked them up in a while either.)
2. When would a directed broadcast be useful? Not only for WOL, but
for some disk
@puck.nether.net
Subject: Re: [c-nsp] security
1. Thanks for the awesome explanations. I've been dealing with these
terms for a while, but had not really grasped them too hard until now.
(To be honest, I had not looked them up in a while either.)
2. When would a directed broadcast
How does one get around the side-effect of not allowing broadcasts; i.e.
wouldn't this break ARP functionality?
- Original Message -
From: Jay Hennigan [EMAIL PROTECTED]
To: cisco-nsp@puck.nether.net
Sent: Monday, December 01, 2008 4:29 PM
Subject: Re: [c-nsp] security
Matlock
Hi,
On Tue, Dec 02, 2008 at 09:02:56AM -0500, Adam Greene wrote:
How does one get around the side-effect of not allowing broadcasts; i.e.
wouldn't this break ARP functionality?
This has no effect on things that happen *inside* the network - it will
just stop converting IP broadcast - link
On 12/2/08, Adam Greene [EMAIL PROTECTED] wrote:
How does one get around the side-effect of not allowing broadcasts; i.e.
wouldn't this break ARP functionality?
Not within the subnet
using ethernet arp is only on the local segment and won't traverse the router
no ip directed broadcast stops
Michael Simpson wrote:
On 12/2/08, Adam Greene [EMAIL PROTECTED] wrote:
How does one get around the side-effect of not allowing broadcasts; i.e.
wouldn't this break ARP functionality?
Not within the subnet
using ethernet arp is only on the local segment and won't traverse the router
Hi,
On Tue, Dec 02, 2008 at 03:29:58PM +, Paul Cosgrove wrote:
Arp uses a destination IP of 255.255.255.255, which is the 'limited
broadcasts address'. Packets with this destination are never routed
between subnets.
Actually, ARP does *not* use any IP broadcast address at all, neither
Gert Doering wrote:
Hi,
On Tue, Dec 02, 2008 at 03:29:58PM +, Paul Cosgrove wrote:
Arp uses a destination IP of 255.255.255.255, which is the 'limited
broadcasts address'. Packets with this destination are never routed
between subnets.
Actually, ARP does *not* use any IP
Actually, ARP does *not* use any IP broadcast address at all, neither
limited or subnet broadcast.
Because it isn't using IP...
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Hi
I read doc about no ip direct broadcast
but I still don't understand.
Can you give me example?
Thank you
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-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of chloe K
Sent: Monday, December 01, 2008 1:47 PM
To: cisco-nsp@puck.nether.net
Subject: [c-nsp] security
Hi
I read doc about no ip direct broadcast
but I still don't understand.
Can you
Matlock, Kenneth L wrote:
An IP diected broadcast is an IP packet destined for the network or
broadcast address.
So for example let's say you have a subnet of 192.168.1.0/24
192.168.1.0 is the network address.
192.168.1.255 is the broadcast address.
An IP packet destined for 192.168.1.255
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