Questions tagged [hsrp]

For questions about the Cisco proprietary protocol called Host Standby Router Protocol (HSRP). For instance, if you have any configuration issues or problems setting up HSRP.

Filter by
Sorted by
Tagged with
39
votes
3answers
117k views

How does gratuitous ARP work?

Does gratuitous ARP work like a normal ARP request? Why is gratuitous ARP used for HSRP?
19
votes
7answers
12k views

Best practice for the combination of HSRP and ECMP

The combination of ECMP (or other causes of asymmetric paths) and HSRP is broken by default in Cisco IOS; the default behaviour with this design floods unicast traffic excessively. What is the best-...
1
vote
1answer
4k views

HSRP issue both device active stats

Here is the Diagram. Ip address: ISP: [VIP]- 10.107.25.5 [R1] - 10.107.25.6 [R2] - 10.107.25.7 Me: [VIP] - 10.107.25.10 [SW1] - 10.107.25.11 [SW2] - 10.107.25.12 Configuration on port: SW1 ...
16
votes
7answers
106k views

What are the differences between VRRP and HSRP?

Are there any significant differences between VRRP and HSRP?
4
votes
1answer
738 views

How do routers with equal standby-group find each other?

Shure, they have to be connected directly do each other, but in configuration you just configure for which interface the virtual router should exist.
3
votes
1answer
1k views

Does VRRP or HSRP work with 2 different upstream ISPs?

We setup two Cisco ASRs as edge routers, each with a connection to a unique upstream ISP. Both routers are advertising the same IPv4 /24 prefix to their ISP via BGP, and both are connected to the same ...