Login or Register to Ask a Question and Join Our Community


IP Networking

L2 nat

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Special Forums IP Networking L2 nat
# 1  
Old 11-14-2008
L2 nat
Hi All,

Is there any possibility to change the IP address of a package according to its MAC address. It would be a sort of L2 NAT. (i.e. If the MAC address is 00:1A:A0:1E:XX:XX so the dir IP will be 192.168.X.X)

Thanks!.
# 2  
Old 11-15-2008
If you are using IPTABLES you could try the following:

Code:
iptables -A PREROUTE -m  mac --mac-source <MAC> -j SNAT <IP>

You could change preroute to what ever you need.
# 3  
Old 11-21-2008
Thanks!
Thanks Lazydog,

I executed the following command, but unfortunately it did not work. :-(

iptables -A -m mac --mac-source 00:80:42:1DSmilieA:0F -j SNAT --to-source 172.16.1.220

iptables: Invalid argument

thanks.
# 4  
Old 11-21-2008
iptables/ebtables.
Somebody know how I can use iptables and ebtables in order to change the IP address of the package according to its MAC.


thanks.
# 5  
Old 11-28-2008
Sorry, try this;

Code:
iptables -A PREROUTE -i <IFACE> -m  mac --mac-source <MAC> -j SNAT <IP>

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Solaris

OpenVPN and NAT

Hi. I am attempting to set up an OpenVPN server on my Solaris 11 box by following all the Linux guides. Thus far I have a working VPN that I can connect to and ssh onto my VPN server over which is great but not what I require long term. I would like to route all VPN client requests for addresses... (0 Replies)
Discussion started by: nickb1976
0 Replies

2. Cybersecurity

iptables in a NAT scenario

Hi, I am learning IPTables have this question. My server is behind a firewall that does a PAT & NAT to the LAN address. Internet IP: 68.1.1.23 Port: 10022 Server LAN IP: 10.1.1.23 port: 22 Allowed Internet IPs: 131.1.1.23, 132.1.1.23 I want to allow a set of IPs are to be able to... (1 Reply)
Discussion started by: capri_guy84
1 Replies

3. Infrastructure Monitoring

Snmp and NAT

Hello, I am facing this scenario: three or more remote LAN (peripheral offices), with the same devices (printers, NAS) in each of them. Those LANs have the same network addresses, i.e.192.168.1.* (are connected to WAN via NAT). I need to collect snmp traps from a central server (public IP).... (4 Replies)
Discussion started by: neutrino
4 Replies

4. Solaris

NAT IPFilter

Hi everybody, I'm running on Solaris 10 X86 (update 1009). I would like to make NAT's rule. I explain you. On Solaris, I configure the principal interface e1000g0 with IP : 192.168.0.33 I created the first logical interface like that : ifconfig e1000g0 addif 192.168.0.40 netmask... (0 Replies)
Discussion started by: aureliensm
0 Replies

5. Shell Programming and Scripting

NAT detection

hellou, can anybody help me with nat detection in real time ? i prefer some detection script because i try some nat detection program's for example p0f or i'm using tcpdump, but i would get contain of specific packet. Some ideas? (1 Reply)
Discussion started by: TheTechnic
1 Replies

6. Solaris

Zones - NAT'ing

Hi gurus. Not such a problem, more of a proof of concept. Ive got two zones :- database-1 and database-dr-1 on two different servers. Both zones have different ip addresses. I want to copy the whole zone database-1 over to database-dr-1, which is simple enough, but I want to install... (0 Replies)
Discussion started by: sbk1972
0 Replies

7. IP Networking

NAT address

Hi Could anybody tell me the solaris command to display the NAT address Thanks in advance (5 Replies)
Discussion started by: axes
5 Replies

8. IP Networking

NAT question

i have a firewall with two interfaces eth0 and eth1, eth0 is connected to an external network, and eth0 is connected to a private lan. im using this command for NAT iptables -A POSTROUTING -t nat -s 192.168.0.0/24 -o eth0 -j SNAT --to-source 223.0.0.3 my questions are : 1) how can i... (4 Replies)
Discussion started by: ratamahatta
4 Replies

9. BSD

proxy or NAT

how do i configure proxy in freeBSD or NAT so that when i set it up as a server can connect other to my new gateway (0 Replies)
Discussion started by: AkinOkin
0 Replies

10. IP Networking

FreeBSD - NAT

Hi All! I have a Pentium 100 (32 MBRAM) with FreeBSD 4.4 installed on it and I am using it as a gateway. When I am downloading (or uploading) stuff simultaneously I see that natd is using up to 100% of the cpu capacity, hence the internet connection becomes blocked. My guess is I will have... (1 Reply)
Discussion started by: Ivo
1 Replies
Login or Register to Ask a Question