My loop back is supposed to be 127.0.0.1.. at least that is what my ifconfig shows 
me..  and i have no idea what program is running on that port.  
Do you think that i could have a possible intrusin?

Thanks
Craig

On Tue, Jan 15, 2002 at 10:44:48AM -0800, Glenn Pitcher wrote:
> No, you can't bypass the firewall using the loopback interface.  Whats
> interesting though is the IP address they're using... usually loopback is
> 127.0.0.1 and the port number, 5460 isn't assigned to anyone so what program
> is running?
> 
> -----Original Message-----
> From: Craig Van Tassle [mailto:[EMAIL PROTECTED]]
> Sent: Monday, January 14, 2002 8:48 AM
> To: secuirty-basics
> Subject: loopback device
> 
> 
> Is it possible for someone over a network to use my loopback to by pass my
> firewall?  If so what can i do to mitigate the problem and how damageing can
> it be?
> 
> The reason im asking is my Snort sytem is showing badd loopback traffic..
> thanks
> 
> here is a snipit from my snort logs.
> 
> [**] [1:528:2] BAD TRAFFIC loopback traffic [**]
> [Classification: Potentially Bad Traffic] [Priority: 2]
> 01/12-14:10:11.568007 45.253.14.97:49847 -> 127.167.228.85:5460
> TCP TTL:64 TOS:0x0 ID:37583 IpLen:20 DgmLen:40
> ******S* Seq: 0x3F4BB00A  Ack: 0x0  Win: 0x200  TcpLen: 20
> 
> Thanks
> Craig
> 
> 

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