From: kevin gannon (kevin@gannons.net)
Date: Tue Sep 20 2005 - 11:44:00 GMT-3
I dont believe at least in 12.2T code will GLBP do the same thing:
Current configuration : 92 bytes
!
interface FastEthernet0/1
ip address 2.3.4.3 <http://2.3.4.3> 255.255.255.0 <http://255.255.255.0>
duplex auto
speed auto
end
R3(config-if)#glb
R3(config-if)#glbp 1 ip 2.3.4.3 <http://2.3.4.3>
% address cannot equal interface IP address
R3(config-if)#
I also missed the subtle difference when I tested it you do get duplicate
ip messages as the vrrp settles down between flaps.
Regards
Kevin
On 9/20/05, Venkataramanaiah.R <vramanaiah@gmail.com> wrote:
>
> I am sorry, I overlooked your earlier post. I understood it as using the
> physical MAC.......
>
> Anyway, it is a good thing that you pointed this out, i never thought of
> this subtle difference between HSRP and VRRP. If the questions says, the
> IP
> address of R1 should be the Def Gw for the hosts on the network and R2
> must
> take over if R1 fails, may be it means configure VRRP or probably GLBP
> (Does
> GLBP behave the same way), but certainly not HSRP, right?
>
> -Venkat
>
> On 9/20/05, Varthis Vassilantonakis <vvas@altec.gr> wrote:
> >
> > It seems that I can't. See below:
> >
> > Rack1R2#
> > Rack1R2#sh run int eth 0/0
> > Building configuration...
> >
> > Current configuration : 135 bytes
> > !
> > interface Ethernet0/0
> > ip address 173.1.23.2 <http://173.1.23.2> <http://173.1.23.2>
> 255.255.255.0 <http://255.255.255.0><http://255.255.255.0>
> > half-duplex
> > standby use-bia
> > standby priority 120
> > standby preempt
> > end
> >
> > Rack1R2#conf t
> > Enter configuration commands, one per line. End with CNTL/Z.
> > Rack1R2(config)#int eth 0/0
> > Rack1R2(config-if)#standby ip 173.1.23.2 <http://173.1.23.2> <
> http://173.1.23.2>
> > % Standby address cannot equal interface IP address
> > Rack1R2(config-if)#
> > Rack1R2(config-if)#^Z
> > Rack1R2#
> >
> > Venkataramanaiah.R wrote:
> >
> >
> > On 9/20/05, Varthis Vassilantonakis <vvas@altec.gr> wrote:
> > >
> > > Hi group,
> > >
> > > It has been asked many times before in the forum but I want to add
> > > something more to it with this post.
> > > So, the question usually was what is the difference between VRRP and
> > > HSRP.
> > >
> > > Now, I've seen all the answers saying that it is basically the same,
> but
> > >
> > > one is cisco proprietary and the other is industry standard.
> > >
> > > But, let's see if there are differences configuration wise. From CCO
> > > I've seen the following for VRRP:
> > >
> > > "Because the virtual router uses the IP address of the physical
> Ethernet
> > >
> > > interface of Router A, Router A assumes the role of the master virtual
> > > router and is also known as the IP address owner. As the master
> virtual
> > > router, Router A controls the IP address of the virtual router and is
> > > responsible for forwarding packets sent to this IP address. Clients 1
> > > through 3 are configured with the default gateway IP address of
> 10.0.0.1 <http://10.0.0.1><http://10.0.0.1>
> > > ."
> > >
> > > In HSRP as I've seen you can not configure the stanby ip to be the
> > > actual ip configured on one of the routers.
> >
> >
> > Can't you use the standby 1 use-bia command to achieve this in HSRP?
> >
> > On the other hand in VRRP another ip can be used (like HSRP), but also
> > > we can use the actual ip configured on the interface making the router
> > > the "master virtual router".
> > >
> > > So, is this the only difference if we watch it in the configuration
> > > perspective?
> > >
> > > And more specifically if we are asked to configure RouterA' to be
> > > preferred, should VRRP master virtual router be implied or anyone
> would
> > > be ok?
> > >
> > > TIA
> > >
> > > Varthis
> > >
> > >
> _______________________________________________________________________
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