How to protect your DHCPD from dhcp starvaton attack? (option82)
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How can I protect my dhcpd application on a Debian system from DHCP starvation attacks? Is there any option in the .conf file?
dhcp
asked Mar 15 '17 at 13:05
StephenStephen
658
|
show 2 more comments
How can I protect my dhcpd application on a Debian system from DHCP starvation attacks? Is there any option in the .conf file?
dhcp
asked Mar 15 '17 at 13:05
StephenStephen
658
1
Give IP addresses based on MAC. If you have too many machines to do that, you can hire somebody to solve the problem for you.
– Satō Katsura
Mar 15 '17 at 13:08
This is a public network. I was just wondering if there was an option within the application itself to protect against this.
– Stephen
Mar 15 '17 at 13:11
1
large subnets and short lease times
– ivanivan
Mar 15 '17 at 13:30
1
Which dhcp server are you using?
– ilkkachu
Mar 15 '17 at 13:47
2
@Stephen, yes, but which DHCP server program? ISC:s DHCP server in the isc-dhcp-server package? dnsmasq? Some other? Or do you just want an answer for some DHCP server, any one?
– ilkkachu
Mar 15 '17 at 14:21
|
show 2 more comments
How can I protect my dhcpd application on a Debian system from DHCP starvation attacks? Is there any option in the .conf file?
dhcp
asked Mar 15 '17 at 13:05
StephenStephen
658
How can I protect my dhcpd application on a Debian system from DHCP starvation attacks? Is there any option in the .conf file?
dhcp
dhcp
asked Mar 15 '17 at 13:05
StephenStephen
658
asked Mar 15 '17 at 13:05
StephenStephen
658
asked Mar 15 '17 at 13:05
StephenStephen
658
asked Mar 15 '17 at 13:05
StephenStephen
658
asked Mar 15 '17 at 13:05
StephenStephen
658
658
1
Give IP addresses based on MAC. If you have too many machines to do that, you can hire somebody to solve the problem for you.
– Satō Katsura
Mar 15 '17 at 13:08
This is a public network. I was just wondering if there was an option within the application itself to protect against this.
– Stephen
Mar 15 '17 at 13:11
1
large subnets and short lease times
– ivanivan
Mar 15 '17 at 13:30
1
Which dhcp server are you using?
– ilkkachu
Mar 15 '17 at 13:47
2
@Stephen, yes, but which DHCP server program? ISC:s DHCP server in the isc-dhcp-server package? dnsmasq? Some other? Or do you just want an answer for some DHCP server, any one?
– ilkkachu
Mar 15 '17 at 14:21
|
show 2 more comments
1
Give IP addresses based on MAC. If you have too many machines to do that, you can hire somebody to solve the problem for you.
– Satō Katsura
Mar 15 '17 at 13:08
This is a public network. I was just wondering if there was an option within the application itself to protect against this.
– Stephen
Mar 15 '17 at 13:11
1
large subnets and short lease times
– ivanivan
Mar 15 '17 at 13:30
1
Which dhcp server are you using?
– ilkkachu
Mar 15 '17 at 13:47
2
@Stephen, yes, but which DHCP server program? ISC:s DHCP server in the isc-dhcp-server package? dnsmasq? Some other? Or do you just want an answer for some DHCP server, any one?
– ilkkachu
Mar 15 '17 at 14:21
1
1
Give IP addresses based on MAC. If you have too many machines to do that, you can hire somebody to solve the problem for you.
– Satō Katsura
Mar 15 '17 at 13:08
Give IP addresses based on MAC. If you have too many machines to do that, you can hire somebody to solve the problem for you.
– Satō Katsura
Mar 15 '17 at 13:08
This is a public network. I was just wondering if there was an option within the application itself to protect against this.
– Stephen
Mar 15 '17 at 13:11
This is a public network. I was just wondering if there was an option within the application itself to protect against this.
– Stephen
Mar 15 '17 at 13:11
1
1
large subnets and short lease times
– ivanivan
Mar 15 '17 at 13:30
large subnets and short lease times
– ivanivan
Mar 15 '17 at 13:30
1
1
Which dhcp server are you using?
– ilkkachu
Mar 15 '17 at 13:47
Which dhcp server are you using?
– ilkkachu
Mar 15 '17 at 13:47
2
2
@Stephen, yes, but which DHCP server program? ISC:s DHCP server in the isc-dhcp-server package? dnsmasq? Some other? Or do you just want an answer for some DHCP server, any one?
– ilkkachu
Mar 15 '17 at 14:21
@Stephen, yes, but which DHCP server program? ISC:s DHCP server in the isc-dhcp-server package? dnsmasq? Some other? Or do you just want an answer for some DHCP server, any one?
– ilkkachu
Mar 15 '17 at 14:21
|
show 2 more comments
1 Answer
1
active
oldest
votes
The layer 2 network should be protected, means that security measure must be in place:
dhcp snooping (bind ip:mac in database)
dynamic arp inspection (work hand in hand with dhcp snooping)
port security - be strict, one mac address per access port if not trunking
By doing this, you can guarantee, when a device is plug into the network that it is unique
Configure DHCP server to only offer ip address to a known set of MAC address
edited Feb 15 at 19:11
Rui F Ribeiro
41.4k1481140
answered Feb 15 at 18:52
rolandorolando
1
add a comment |
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The layer 2 network should be protected, means that security measure must be in place:
dhcp snooping (bind ip:mac in database)
dynamic arp inspection (work hand in hand with dhcp snooping)
port security - be strict, one mac address per access port if not trunking
By doing this, you can guarantee, when a device is plug into the network that it is unique
Configure DHCP server to only offer ip address to a known set of MAC address
edited Feb 15 at 19:11
Rui F Ribeiro
41.4k1481140
answered Feb 15 at 18:52
rolandorolando
1
add a comment |
The layer 2 network should be protected, means that security measure must be in place:
dhcp snooping (bind ip:mac in database)
dynamic arp inspection (work hand in hand with dhcp snooping)
port security - be strict, one mac address per access port if not trunking
By doing this, you can guarantee, when a device is plug into the network that it is unique
Configure DHCP server to only offer ip address to a known set of MAC address
edited Feb 15 at 19:11
Rui F Ribeiro
41.4k1481140
answered Feb 15 at 18:52
rolandorolando
1
add a comment |
The layer 2 network should be protected, means that security measure must be in place:
dhcp snooping (bind ip:mac in database)
dynamic arp inspection (work hand in hand with dhcp snooping)
port security - be strict, one mac address per access port if not trunking
By doing this, you can guarantee, when a device is plug into the network that it is unique
Configure DHCP server to only offer ip address to a known set of MAC address
edited Feb 15 at 19:11
Rui F Ribeiro
41.4k1481140
answered Feb 15 at 18:52
rolandorolando
1
The layer 2 network should be protected, means that security measure must be in place:
dhcp snooping (bind ip:mac in database)
dynamic arp inspection (work hand in hand with dhcp snooping)
port security - be strict, one mac address per access port if not trunking
By doing this, you can guarantee, when a device is plug into the network that it is unique
Configure DHCP server to only offer ip address to a known set of MAC address
edited Feb 15 at 19:11
Rui F Ribeiro
41.4k1481140
answered Feb 15 at 18:52
rolandorolando
1
edited Feb 15 at 19:11
Rui F Ribeiro
41.4k1481140
edited Feb 15 at 19:11
Rui F Ribeiro
41.4k1481140
edited Feb 15 at 19:11
Rui F Ribeiro
41.4k1481140
41.4k1481140
answered Feb 15 at 18:52
rolandorolando
1
answered Feb 15 at 18:52
rolandorolando
1
answered Feb 15 at 18:52
rolandorolando
1
1
add a comment |
add a comment |
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1
Give IP addresses based on MAC. If you have too many machines to do that, you can hire somebody to solve the problem for you.
– Satō Katsura
Mar 15 '17 at 13:08
This is a public network. I was just wondering if there was an option within the application itself to protect against this.
– Stephen
Mar 15 '17 at 13:11
1
large subnets and short lease times
– ivanivan
Mar 15 '17 at 13:30
1
Which dhcp server are you using?
– ilkkachu
Mar 15 '17 at 13:47
2
@Stephen, yes, but which DHCP server program? ISC:s DHCP server in the isc-dhcp-server package? dnsmasq? Some other? Or do you just want an answer for some DHCP server, any one?
– ilkkachu
Mar 15 '17 at 14:21