Acls

Using MAC Access-lists

2008-10-27 ·3 min read

We ran into this today, and, though I knew it existed, I never actually saw it in the wild. I’m talking about MAC access-lists. In the example setup, we have a DMZ off of a firewall that …

acls catalyst cisco lan switching

ACLs and HSRP, BGP, OSPF, VRRP, GLBP...

2008-06-12 ·2 min read

Here’s a handy list of ACL entries to allow your devices to speak routing protocols, availability protocols, and some other stuff. We’ll assume you have ACL 101 applied to your Ethernet …

acls bgp bootps dhcp dhcpd eigrp glbp hsrp ospf rip vrrp vrrp-e

Commenting Access-lists

2008-03-12 ·2 min read

There’s a very-overlooked feature of access-lists – the remark. Yes, this is very basic, but it’s worth mentioning, as it has saved me anguish time and time again. I use remarks to …

acls asa firewall pix