Hi,
I have IXIA port connected to an interface on which dnsmasq is running. I'm
simulating 8k DHCP clients from IXIA and see that there are more than 12k
DISCOVER packets sent from IXIA, but the ones logged in dnsmasq log is exactly
8k. Why is this difference and what dnsmasq is doing with rema
Hi,
I have IXIA port connected to an interface on which dnsmasq is running. I'm
simulating 8k DHCP clients from IXIA and see that there are more than 12k
DISCOVER packets sent from IXIA, but the ones logged in dnsmasq log is exactly
8k. Why is this difference and what dnsmasq is doing with rema
Hi,
I have IXIA port connected to an interface on which dnsmasq is running. I'm
simulating 8k DHCP clients from IXIA and see that there are more than 12k
DISCOVER packets sent from IXIA, but the ones logged in dnsmasq log is exactly
8k. Why is this difference and what dnsmasq is doing with rema
provided, but I may have decoded it wrong.
Cheers,
Simon.
On 04/03/2019 10:01, P, Sreelakshmi wrote:
> Hi All,
>
>
>
> How to we configure vendor specific information in dnsmasqv6 using
> option 17?
>
>
>
> Every time I tried to configure option 17 as b
Hi All,
How to we configure vendor specific information in dnsmasqv6 using option 17?
Every time I tried to configure option 17 as below :
dnsmasq
--dhcp-option=option6:17,003db85c00640035414f532d5377697463683a546f703a546f6b3
-test
I ended up getting the below error:
dnsma
Hi All,
I'm trying to simulate DHCPv6 clients from IXIA and observe that only 1 or 2
clients gets honored with IPv6 address when simultaneous requests are sent from
64 clients, but the same thing works if the request is made one after the other
sequentially.
Configuration below:
OS. If, on the other hand, the malformed packets
are crashing dnsmasq and some daemon-framework is restarting it, that's bad,
and we'd like to know about it.
Cheers
Simon.
On 10/12/2018 05:59, P, Sreelakshmi wrote:
> Hi All,
>
>
>
> Does anyone has any updat
Hi All,
A malformed dhcp discover packet can cause dnsmasq to be unresponsive for a
small amount of time. If this was repeated over time an attacker could make
the dhcp service unresponsive DOSing the box.
Does dnsmasq validate the incoming DHCP packet? We are using v2.78. Are there
any fixes
Hi All,
Does anyone has any update on this?
Thanks!
From: P, Sreelakshmi
Sent: Friday, December 7, 2018 4:19 PM
To: 'dnsmasq-discuss@lists.thekelleys.org.uk'
Subject: Validation for malformed DHCP packets in dnsmasq
Hi,
We are using dnsmasq 2.78. We see that there are som
Hi,
We are using dnsmasq 2.78. We see that there are some security vulnerability
w.r.t malformed DHCP packets as explained below.
Problem 1:
A malformed dhcp discover packet can cause dhcp to be unresponsive from the
switch for a small amount of time. If this was repeated over time an attacker
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