Hot Downloads

Welcome, Guest
Username: Password: Remember me


ACL Help 12 years 1 month ago #12054

  • susetechie
  • susetechie's Avatar
  • Offline
  • Frequent Member
  • Posts: 24
  • Karma: 0
hey guys,

I am a acl newbie. pretty good with cisco, but for some reason I have a hard time wrapping my head around acls. This is the scenario: I see an access list that denies a certain ip in access list 120, another access list, 130 permits this ip. When I see the config for the interface I see that 120 is applied to the inside and 130 is applied to the out side. Like so:

ip access-group 120 in
ip access-group 130 out

What reason would there be to deny traffic on the inside and then allow it on the outside?? I am confused by this.

Also, does anyone have any links to very simplied access list help. for some reason I have a hard time with the reverse subnet mask deal. i cannot seem to work it out in my brain. lol


"Go away or I will replace you with a very small shell script"
The administrator has disabled public write access.

Re: ACL Help 12 years 1 month ago #12055

  • zoony
  • zoony's Avatar
  • Offline
  • New Member
  • Posts: 4
  • Karma: 0
Is this interface internet facing . If so then that ip is being denied entry into your network , while your users are allowed to go to this network based on the 130 Out statement.
The administrator has disabled public write access.
Time to create page: 0.109 seconds


Cisco Routers

  • SSL WebVPN
  • Securing Routers
  • Policy Based Routing
  • Router on-a-Stick

VPN Security

  • Understand DMVPN
  • GRE/IPSec Configuration
  • Site-to-Site IPSec VPN
  • IPSec Modes

Cisco Help

  • VPN Client Windows 8
  • VPN Client Windows 7
  • CCP Display Problem
  • Cisco Support App.

Windows 2012

  • New Features
  • Licensing
  • Hyper-V / VDI
  • Install Hyper-V


  • File Permissions
  • Webmin
  • Groups - Users
  • Samba Setup