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Network Security Firewalls
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Re: Dual IP Address for Check Point ???

Subject: Re: Dual IP Address for Check Point ???
Date: Mon, 10 Oct 2005 10:01:05 +0200
On Fri, Oct 07, 2005 at 10:10:39AM +0300, Cem Ba?kocagil wrote:
    
   I got a problem. I have to assign double IP addresses to one of my
   CheckPoint firewall's interfaces. Does anybody have an idea on how to do
   this?

This is one way. 

$ sudo ifconfig eth0:1 10.10.10.10
$ sudo ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:0C:F1:80:95:E3
          inet addr:146.232.128.30  Bcast:146.232.129.255
          Mask:255.255.254.0
          inet6 addr: fe80::20c:f1ff:fe80:95e3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:152756045 errors:0 dropped:84 overruns:84
          frame:84
          TX packets:67522957 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2862495585 (2.6 GiB)  TX bytes:4288140675 (3.9 GiB)

eth0:1    Link encap:Ethernet  HWaddr 00:0C:F1:80:95:E3
          inet addr:10.10.10.10  Bcast:10.255.255.255  Mask:255.0.0.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

You can disable second IP with 

$sudo ifconfig eth0:1 down


Regards
Johann
-- 
Johann Spies          Telefoon: 021-808 4036
Informasietegnologie, Universiteit van Stellenbosch

     "He that covereth his sins shall not prosper; but whoso
      confesseth and forsaketh them shall have mercy."      
                                         Proverbs 28:13 

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