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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.

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How to force client side HSRP interface to go into standby when internet is not reachable [duplicate]

I have a VIRL setup in which the client router is connected to a client switch that connected to two provider switches that have HSRP configured for the client gateway. The two switches are in an OSPF ...
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1answer
43 views

Can a router be part of multiple HSRP groups?

Because we configure HSRP on interface level, is that possible?
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1answer
41 views

How exactly does a router get elected as an Active router in HSRP?

I know the overview of HSRP and that election depends on priority. I also know that only active and standby routers send hello messages every 3 seconds. But when the routers are first configured with ...
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1answer
57 views

IPSec tunnel between 2 LANs using HSRP in each side

This is my first post here, so tell me if there's something I'm doing wrong. I'm currently working with another IT student on our end of degree project and we're building our network in PT. Our ...
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1answer
53 views

High Availability for ISR 4431 IPSec VPNs

I have the following lab setup in GNS3. R1 & R2 are VPN endpoint at my datacenters and R3 is simulating a remote site. What i'm trying to accomplish is having one tunnel from R3 to the ...
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2answers
90 views

HSRP limitations on Catalyst 3560

I have read all of the documentation so many times that I put myself into a headspin. Now the sentences I read don't make any sense. What exactly is the HSRP limitation on Cisco Catalyst 3560 ...
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1answer
108 views

hsrp on both side of router

i tried to create a simple network topology to test the Hot standby router protocol gateway for "server2" and "server3", and the architecture is shown in the figure below. i would like to clarify ...
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183 views

HSRP IPv6 configuration

Looking at the Cisco documentation for HSRP IPv6 configuration I noticed the use of 'standby 1 ipv6 autoconfig'. interface FastEthernet0/0 no ip address duplex auto speed auto ipv6 address 2020:...
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1answer
267 views

Multiple HSRP group on same VLAN interface

I have Cisco Nexus 9k switch and following is my HSRP configured with vPC interface Vlan100 description *** Public_1 VLAN *** no shutdown mtu 9216 no autostate no ip redirects ip address ...
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1answer
370 views

How to change HSRP version 1 to 2 without downtime?

We have running HSRP in production but its running on version 1 now i want to change it to version 2 so is there a way to do without any downtime or disturb live traffic?
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1answer
900 views

vPC with HSRP strange arp issue

I have following scenario with vPC and HSRP (version 1) configuration. I am seeing very strange issue, my host configured for bond + vlan and my bonding mode is active-backup, I have only VLAN 100 ...
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263 views

Even ips pinging but odd ips not pinging

We have following network, and i have multiple host connected to TOR switches configured with public IPs. We have HSRP running on vPC switches. interface Vlan100 description *** Public VLAN *** ...
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1answer
324 views

How to resolve a spanning tree issue on a server trunk port?

I am having a very strange spanning-tree issue with Cisco Nexus switches. My server is connected to the TOR switch with trunk configuration because we have multiple VLANs on the server. When I reboot ...
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1answer
616 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 ...
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2answers
67 views

HSRP works just for one out of three VLANs

I have two L3-Switches performing HSRP for 3 VLANs (64,65,66). When looking at the output of the "show standby brief" command, I can see that both switches have formed a virtual router just for one ...
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1answer
730 views

Connecting an SRX chassis cluster to redundant upstream WAN links

I've been tasked with migrating some Juniper SSG 140's in an active/passive cluster to an SRX 340 cluster. I'm very familiar with ScreenOS, but am still learning JunOS. Currently, we're connected to ...
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1answer
457 views

Performing HSRP for routers

On the right side you can see 2 multilayer switches. With those two switches I want to enable HSRP for each WAN router. What has to be done in order to accomplish this? and why? [
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1answer
520 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.
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1answer
1k views

Configuring HSRPv2 (Dual Stack - IPv4 and IPv6)

I want to configure HSRPv2 dual stack on my core-switches. Information: Access1 is in VLAN 64, Acess2 in VLAN 65 and Access 3 in VLAN 66 I have configured SVIs for each VLAN (IPv4 and IPv6). in the ...
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1answer
116 views

HSRP - 2 separate Virtual Router for Distribution and WAN?

I've got 2 Core-Multilayer-Switches connected with each other with two cables (trunks). They are also connected with the distribution-switches (and each switch is connected with both core-switches). ...
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1answer
174 views

Converting HSRP to GLBP with 2 ISP

In this lap, I configured HSRP to make the R2 is backup of R1, but I want to change HSRP to GLBR that is using load balance that is meaning R1 and R2 will operate in the same time with 2 lines (...
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1answer
596 views

HSRP Tracking an Ip

In this lap, I can edit configuration on R1 and R2 only. I configured HSRP protocol in both 2 routers in e0/0. where R1 has priority 150 and another router (R2) has priority 100. and made a track 1 ...
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1answer
94 views

Breaking a stack switches (with SVIs as gateway) - using HSRP

I have a stack of 2x 3850 L3 Cisco switches. This stack has multiple SVIs created for several VLANs and is use mainly for distribution (inter-vlan routing). The problem with the stack is that I can't ...
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1answer
386 views

HSRP vs VRRP interface tracking

Was reading a Cisco presentation and there was that VRRP does not have a native interface tracking mechanism but it does have the ability to track objects. Such objects include also uplink statuses of ...
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2answers
970 views

VRRP vs HSRP for load sharing

Do both VRRP and HSRP support load sharing across more than one virtual routers based on the grop number ? In using VLAN's does the group number (in load balancing) will remain same in case of both ...
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1answer
154 views

WAN project requirements increasing

Okay so I was contracted to provide to design a new WAN topology for quite a large company in my country and designed them a fairly standard IPSec over DMVPN type design. So you can see the above ...
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2answers
112 views

change around 100 hsrp groups priority

i am planning to switch hsrp status from standby to active for around 100 vlan interfaces. The problem is that the group numbers are not matching the interface vlan number. for example there is int ...
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1answer
182 views

Router Ethernet port ip no accessible from clients

I have this setup with a hybrid of equipment's from Cisco and Ubiquiti Edge routers and Vyos. My Cisco Nexus configured with HSRP with all the SVI's on 192.168.1.243 as the active on HSRP and SVI's ...
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1answer
537 views

Possible reasons for both VRRP and HSRP on same router

I'm reviewing the configuration of a pair of pair routers. Each pair of routers has a satellite link between them (which is also redundant). They are in use - One pair has HSRP configured for all ...
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1answer
846 views

HSRP on switch interfaces

As part of my internship/thesis, I am looking to implement HSRP in a network. The network has 2 separate locations that are connected with a fibre cable (layer 3 to layer 3). Each layer 3 (Cisco ...
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1answer
1k views

Cisco HSRP CAM vs ARP timeout

Today we received email from our ISP saying they are performing maintenance on their network so if you have HSRP connectivity with them in that case you need to clear ARP table or reduce ARP timeout ...
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2answers
1k views

Regarding traffic blackholing in case of vpc and hsrp

From the cisco docs i have: "vPC and HSRP/VRRP Object Tracking As Figure 67 suggests, it’s important not to use HSRP/VRRP link tracking in a vPC configuration. Assume HSRP/VRRP object tracking is ...
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3answers
872 views

HSRP Issue Both sides are active ( Layer 3 4300 X serires)

Why does HSRP shows both sides are active HSRP? Could you please give me details answer? First router: **Vlan111 - Group 6** State is Active 5 state changes, last state change 2w4d Virtual ...
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666 views

Can I connect the two routers back to back to use HSRP? Please suggest

Current network is like - MSP network--> Cisco 4431--> ASA--> N7k--> LAN. I'm adding one more router and one more ASA in the network, Do I really need to add L2 switch to connect routers LAN side and ...
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1answer
52 views

Configuring HSRP but amber ports needed on each link

I'm trying to make an active/standby link for HSRP on TWO 3560 switches. For the standby link, I want amber colored ports for the standby link on each switch, and green ports for the active link. I ...
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1answer
2k views

HSRP change priority didn't failover

I have HSRP running on two L3 switch and i change priority to higher but it didn't failover, why? SW1 interface Vlan30 description Internal_PrivateIP ip address 10.5.0.2 255.255.248.0 no ip ...
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1answer
566 views

HSRP traffic flow asymmetric

I have asked following question related HSRP setup and here is the diagram and detail: HSRP issue both device active stats Question: I have cached on our cacti monitoring, traffic is flowing ...
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2answers
309 views

Can I use HSRP for router hardware redundancy?

I need solution for router hardware redundancy. Two routers 2900 series with same configuration, toward same ISP. If one fail second to do failover. Can HSRP do this? Can outside interfaces be set ...
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1answer
1k views

VRRP Sharing Master Router's IP

This set of question stems from a part of the answer to this question: What are the differences between VRRP and HSRP? With HSRP, each interface must have an IP address that is separate from the ...
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1answer
3k 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 ...
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1answer
2k views

Stack switch with HSRP for Gateway redundancy

We have ws-c3850-48t two switch in stack. and from Internet Provide ISP we have two fiber drops coming for redundancy. I want to configure HSRP for failover but i believe stack switch work like single ...
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1answer
1k views

HSRP and VRRP both routers active

I have two routers connected to a single switch and both have internet connections. I have configured HSRP and VRRP as follows, This is a test bench I'm using so that's why I'm using both. The HSRP is ...
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1answer
208 views

HSRP causing switch CAM entries to expire

I have host which is connected to a switch. I need to establish a communication with a server which is not in my network. So I am using two routers(gateways) ,configured with HSRP, between my host and ...
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1answer
2k views

Cisco HSRP with redundant links

I am not sure how to configure HSRP in my scenario: I have 2 distribution 2950 switches, each connected to two core 3560 switches. Distribution switches work in VTP transparent mode and (for now) ...
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2answers
912 views

Tying a static route to HSRP to only advertise when Active

Anyone aware of a way to tie a static route to HSRP, so that it is only advertised when the router is Active? I cannot think of any way to do this other than via an EEM script which looks at syslog ...
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1answer
916 views

High Availability on Routers - HSRP, VRRP, GLBP

I have two MLS Connected to a Layer 2 Switch, Behind Layer 2 Switch there are some 5 hosts are there. MLS - A - Active Router IP Add - 192.168.1.10 MAC Add - 0000.aaaa.aaaa Priority - 200 VLAN 50 ...
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3answers
102k views

How does gratuitous ARP work?

Does gratuitous ARP work like a normal ARP request? Why is gratuitous ARP used for HSRP?
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1answer
469 views

HSRP interface addresses

We are wanting to add a second PE router for an MPLS customer via HSRP. Unfortunately the CE router's connection to the PE router was configured as a /30. There are no IP addresses on the subnet to ...
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1answer
1k views

Why ARP Cache clear when HSRP is already running

I have a scenario to discuss. There are three nodes that I am talking about. lets give those sites the name A, B and C. Site A and C has vendors routers installed. Vendor has no reachability for ...
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2answers
5k views

SonicWALL HA w/ Dual WAN HSRP from two redundant switches

We're adding two SonicWALL NSA 2600 firewalls to our current setup. We currently get two WAN connections from two separate Cisco routers running on the same external subnet with what I believe is HSRP....