Home page logo
/

basics logo Security Basics mailing list archives

Re: ACL router problem
From: Shain Singh <shain.singh () gmail com>
Date: Fri, 8 Oct 2010 10:38:15 +1100

There are a few things that you would need to look into.

You have the "deny" entry at the bottom logged, when you try and
connect, do you see it in the logs? If so, it means you're not
matching your ACL entry up the top.

Depending on how secure this network needs to be, did you try allowing
all IP related traffic from your host instead of just TCP?

something like this could be where you would see a match.

access-list 111 permit ip host 192.168.8.139 192.168.1.15 255.255.255.255



On 8 October 2010 08:40, Juan B <juanbabi () yahoo com> wrote:
Hi ALL !!

I need to connect from a host (192.168.8.139)in the lan to host
192.168.1.15 so I put acl like this: ( I added the first line )

access-list 111 permit tcp host 192.168.8.139 any
access-list 111 permit tcp 192.168.0.0 0.0.255.255 host 192.168.8.2 eq
telnet
access-list 111 permit tcp host 192.168.8.7 any
access-list 111 permit tcp 192.168.0.0 0.0.255.255 any eq www
access-list 111 permit udp 192.168.0.0 0.0.255.255 any eq domain
access-list 111 permit tcp 192.168.0.0 0.0.255.255 any eq 443
access-list 111 permit tcp 192.168.0.0 0.0.255.255 any eq 5900
access-list 111 permit ip host 192.168.8.198 any
access-list 111 permit ip host 192.168.8.199 any
access-list 111 permit icmp any any echo-reply
access-list 111 permit icmp any any echo
access-list 111 permit icmp any any source-quench
access-list 111 permit icmp any any time-exceeded
access-list 111 deny   icmp any any
access-list 111 permit tcp any any established
access-list 111 deny   ip any any log

take a look also at line 3 of the acl this host is the internal mail
server, from that mail server when I try to connect to host
192.168.1.15 there is no problem !!! so I made a similar entry to
enable connection from my host (192.168.8.139) but It doesnt work !! I
know its a problem of the ACL beacuse when I remove this ACL (which is
applied to vlan 1 BTW) the connection works!!

please help !
marco





------------------------------------------------------------------------
Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an SSL certificate.  We look at how SSL works, 
how it benefits your company and how your customers can tell if a site is secure. You will find out how to test, 
purchase, install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for 
set-up are highlighted to help you ensure efficient ongoing management of your encryption keys and digital 
certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1
------------------------------------------------------------------------





-- 
Shaineel Singh
e: shain.singh () gmail com
p: +61 422 921 951
w: http://buffet.shainsingh.com

--
"Too many have dispensed with generosity to practice charity" - Albert Camus

------------------------------------------------------------------------
Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an SSL certificate.  We look at how SSL works, how 
it benefits your company and how your customers can tell if a site is secure. You will find out how to test, purchase, 
install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for set-up are 
highlighted to help you ensure efficient ongoing management of your encryption keys and digital certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1
------------------------------------------------------------------------


  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]
AlienVault