Tag: glbp

ACLs and HSRP, BGP, OSPF, VRRP, GLBP…

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 inbound; your Ethernet has an IP of 192.168.0.1. BGP…

ASA + HSRP/VRRP/GLBP = undef

I use Google Analytics to track the 2 or 3 hits I get a day, and sometimes I see some interesting search terms. Yesterday, some googled up the term “does the ASA 5505 run HSRP”; I think that deserves a…

Configuring GLBP

Believe it or not, I got a request for an article on how to configure GLBP. I’m as shocked as you are, so here it goes. The Gateway Load Balancing Protocol (GLBP) is another Cisco-proprietary protocol for providing highly-available gateways…

HSRP vs. GLBP

HSRP (Hot Standby Router Protocol) is a Cisco-proprietary method for supplying a highly-available gateway for hosts to use. GLBP (Gateway Load Balancing Protocol) does the same thing. So, what’s the difference? HSRP works on layer 3 and provides a standby…