Good work Nick I'm sure Cisco know this works..? Why do they not recommend it then ...
-- BR Tony Sent from my iPhone on 3 On 11 Oct 2012, at 23:06, Nick Bonifacio <[email protected]> wrote: > > R5(config-router)#do sh ip b > *Oct 11 22:09:20.495: %BGP-5-ADJCHANGE: neighbor 10.0.46.1 Down User reset > *Oct 11 22:09:20.907: %BGP-5-ADJCHANGE: neighbor 10.0.46.1 Up gp > BGP table version is 16, local router ID is 10.0.46.55 > Status codes: s suppressed, d damped, h history, * valid, > best, i - > internal, > r RIB-failure, S Stale > Origin codes: i - IGP, e - EGP, ? - incomplete > > Network Next Hop Metric LocPrf Weight Path > *>i192.46.1.0 10.0.46.1 1234 100 10000 i > *>i192.46.2.0 10.0.46.1 1234 100 10000 i > *>i192.46.3.0 10.0.46.1 1234 100 10000 i > *>i192.46.4.0 10.0.46.1 1234 100 10000 i > *>i192.46.5.0 10.0.46.1 1234 100 10000 i > *>i192.46.6.0 10.0.46.1 1234 100 10000 i > *>i192.46.7.0 10.0.46.1 1234 100 10000 i > *>i192.46.8.0 10.0.46.1 1234 100 10000 i > *>i192.46.9.0 10.0.46.1 1234 100 10000 i > *>i192.46.10.0 10.0.46.1 1234 100 10000 i > *>i192.46.11.0 10.0.46.1 1234 100 10000 i > *>i192.46.12.0 10.0.46.1 1234 100 10000 i > *>i192.46.13.0 10.0.46.1 1234 100 10000 i > *>i192.46.14.0 10.0.46.1 1234 100 10000 i > *>i192.46.15.0 10.0.46.1 1234 100 10000 i > R5(config-router)# > > i need a fast way to copy and paste prefixes in :) > > I did manipulate weight, MED... > From: Tony Singh <[email protected]> > To: Nick Bonifacio <[email protected]> > Cc: Bob McCouch <[email protected]>; "[email protected]" > <[email protected]> > Sent: Thursday, October 11, 2012 5:54 PM > Subject: Re: [OSL | CCIE_RS] Hello team can we make bgp neighbor ship HSRP > virtual IP ? > > Take it further see how many prefixes it can handle, check metrics work > weight local pref med... > > -- > BR > > Tony > > Sent from my iPad > > On 11 Oct 2012, at 22:34, Nick Bonifacio <[email protected]> wrote: > > > I can't believe it, working on real hardware as well: > > > > interface FastEthernet0/0 > > ip address 10.0.46.6 255.255.255.0 > > duplex auto > > speed auto > > standby 0 ip 10.0.46.1 > > > > > > router bgp 456 > > no synchronization > > bgp log-neighbor-changes > > neighbor 10.0.46.55 remote-as 456 > > no auto-summary > > > > > > ------------------------------------------------------------------ > > > > > > interface FastEthernet0/0 > > ip address 10.0.46.55 255.255.255.0 > > duplex auto > > speed auto > > > > > > router bgp 456 > > no synchronization > > bgp log-neighbor-changes > > neighbor 10.0.46.1 remote-as 456 > > no auto-summary > > > > > > R5(config-router)#do sh ip bgp sum > > BGP router identifier 10.0.46.55, local AS number 456 > > BGP table version is 1, main routing table version 1 > > > > Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down > > State/PfxRcd > > 10.0.46.1 4 456 5 5 1 0 > > 0 00:03:18 0 > > > > > > R5(config-router)#do sh tcp brief > > TCB Local Address Foreign Address (state) > > 66A1041C 10.0.46.55.39341 10.0.46.1.179 ESTAB > > > > > > System image file is "flash:c1841-adventerprisek9-mz.124-24.T7.bin" > > > > > > > > ________________________________ > > From: Nick Bonifacio <[email protected]> > > To: Bob McCouch <[email protected]> > > Cc: "[email protected]" <[email protected]> > > Sent: Thursday, October 11, 2012 8:51 AM > > Subject: Re: [OSL | CCIE_RS] Hello team can we make bgp neighbor ship HSRP > > virtual IP ? > > > > Just what I need, another OCD day. Oh well, I'll be home in about 8 hours > > and will have access to real hardware. I will let everyone know what > > happens. > > > > Nick > > > > Sent from my iPhone > > > > On Oct 11, 2012, at 8:43 AM, Bob McCouch <[email protected]> wrote: > > > >> Interesting. I was also pretty sure that didn't work. At best it would > >> only do a passive open (respond to a TCP syn) no originate the > >> session. > >> > >> Bob > >> -- > >> Sent from my iPhone, please excuse any typos. > >> > >> On Oct 11, 2012, at 8:25 AM, Nick Bonifacio <[email protected]> wrote: > >> > >>> //Disclaimer: I am using GNS3 for this example. > >>> > >>> This is the way I understand it, anyone else feel free to chime in: > >>> > >>> Think update source. > >>> > >>> router bgp 4 > >>> neighbor 10.0.4.5 remote-as 5 > >>> neighbor 10.0.4.5 update-source FastEthernet0/0 > >>> > >>> > >>> interface FastEthernet0/0 > >>> ip address 10.0.4.4 255.255.255.0 > >>> duplex auto > >>> speed auto > >>> standby 0 ip 10.0.4.254 > >>> > >>> how can I create a neighborship by sourcing the standby 0 IP? I can't. > >>> > >>> Let's look at router 5 on the other side > >>> > >>> interface FastEthernet0/0 > >>> ip address 10.0.4.5 255.255.255.0 > >>> duplex auto > >>> speed auto > >>> > >>> router bgp 5 > >>> no synchronization > >>> bgp log-neighbor-changes > >>> neighbor 10.0.1.1 remote-as 1 > >>> neighbor 10.0.4.254 remote-as 4 > >>> no auto-summary > >>> > >>> > >>> Let's debug BGP on R4 > >>> > >>> R4(config-router)#no > >>> *Mar 1 00:31:36.267: BGP: 10.0.4.5 passive open to 10.0.4.254 > >>> *Mar 1 00:31:36.271: BGP: 10.0.4.5 passive open failed - 10.0.4.254 is > >>> not update-source FastEthernet0/0's address (10.0.4.4) > >>> *Mar 1 00:31:36.271: BGP: 10.0.4.5 remote connection attempt failed, > >>> local address 10.0.4.254 > >>> R4(config-router)#no > >>> *Mar 1 00:31:38.255: BGP: 10.0.4.5 open active, local address 10.0.4.4 > >>> *Mar 1 00:31:38.311: BGP: 10.0.4.5 open failed: Connection refused by > >>> remote host, open active delayed 26388ms (35000ms max, 28% jitter) > >>> R4(config-router)#no > >>> > >>> ok it is complaining about 10.0.4.254 not being fa0/0's address. Fine, I > >>> will remove update source fa0/0 > >>> > >>> > >>> > >>> router bgp 4 > >>> no synchronization > >>> bgp log-neighbor-changes > >>> neighbor 10.0.4.2 remote-as 2 > >>> neighbor 10.0.4.3 remote-as 3 > >>> neighbor 10.0.4.5 remote-as 5 > >>> neighbor 10.0.4.5 update-source FastEthernet0/0 > >>> maximum-paths 3 > >>> no auto-summary > >>> > >>> no neighbor 10.0.4.5 update-source FastEthernet0/0 > >>> > >>> BGP: 10.0.4.5 rcvd OPEN w/ remote AS 5 > >>> *Mar 1 00:33:09.427: BGP: 10.0.4.5 went from OpenSent to OpenConfirm > >>> *Mar 1 00:33:09.427: BGP: 10.0.4.5 send message type 1, length (incl. > >>> header) 45 > >>> *Mar 1 00:33:09.475: BGP: 10.0.4.5 went from OpenConfirm to Established > >>> *Mar 1 00:33:09.475: %BGP-5-ADJCHANGE: neighbor 10.0.4.5 Up > >>> > >>> uh oh, it is working! Interesting.. I am in GNS3 but will lab it up at > >>> home on real hardware once I get there. This is not the behavior I > >>> expected. > >>> > >>> R5#sh ip bgp sum > >>> [...] > >>> Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down > >>> State/PfxRcd > >>> 10.0.1.1 4 1 40 40 2 0 0 00:36:01 > >>> 1 > >>> 10.0.4.254 4 4 16 22 2 0 0 00:02:47 > >>> 1 > >>> > >>> > >>> I also tested it with iBGP and the same behavior occured. I also failed > >>> over the HSRP address and made another node active as 10.0.4.254 and the > >>> adjacency did come back up on that router! > >>> > >>> I will try this out on real hardware once I get home and then report > >>> back. We had tried this in production 2 months ago using ASR1000s and > >>> could not get it working. > >>> > >>> Nick > >>> > >>> > >>> ________________________________ > >>> From: Samir Idris <[email protected]> > >>> To: Nick Bonifacio <[email protected]> > >>> Cc: Taqdir Singh <[email protected]>; "[email protected]" > >>> <[email protected]> > >>> Sent: Thursday, October 11, 2012 7:50 AM > >>> Subject: Re: [OSL | CCIE_RS] Hello team can we make bgp neighbor ship > >>> HSRP virtual IP ? > >>> > >>> > >>> Nick, > >>> > >>> Why cant we source from a virtual IP? Can you shed some light on the > >>> logic? > >>> > >>> Regards, > >>> Samir. > >>> > >>> On Thursday, October 11, 2012, Nick Bonifacio <[email protected]> wrote: > >>>> Hi Taqdir, > >>>> > >>>> You have to source from a physical interface and cannot source from a > >>>> vIP. Here is a link to "best practice" using HSRP and multihomed BGP > >>>> environments: > >>>> > >>>> http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example09186a0080093f2c.shtml > >>>> > >>>> > >>>> Thanks! > >>>> Nick > >>>> > >>>> ________________________________ > >>>> From: Taqdir Singh <[email protected]> > >>>> To: [email protected] > >>>> Sent: Thursday, October 11, 2012 3:16 AM > >>>> Subject: [OSL | CCIE_RS] Hello team can we make bgp neighbor ship HSRP > >>>> virtual IP ? > >>>> > >>>> Hello team can we make bgp neighborship with HSRP virtual IP ? > >>>> _______________________________________________ > >>>> For more information regarding industry leading CCIE Lab training, > >>>> please visit http://www.ipexpert.com/ > >>>> > >>>> Are you a CCNP or CCIE and looking for a job? Check out > >>>> http://www.platinumplacement.com/ > >>>> > >>>> http://onlinestudylist.com/mailman/listinfo/ccie_rs > >>>> _______________________________________________ > >>>> For more information regarding industry leading CCIE Lab training, > >>>> please visit http://www.ipexpert.com/ > >>>> > >>>> Are you a CCNP or CCIE and looking for a job? Check out > >>>> http://www.platinumplacement.com/ > >>>> > >>>> http://onlinestudylist.com/mailman/listinfo/ccie_rs > >>> > >>> -- > >>> Samir Idris > >>> _______________________________________________ > >>> For more information regarding industry leading CCIE Lab training, please > >>> visit www.ipexpert.com > >>> > >>> Are you a CCNP or CCIE and looking for a job? Check out > >>> www.PlatinumPlacement.com > >>> > >>> http://onlinestudylist.com/mailman/listinfo/ccie_rs > > _______________________________________________ > > For more information regarding industry leading CCIE Lab training, please > > visit www.ipexpert.com > > > > Are you a CCNP or CCIE and looking for a job? Check out > > www.PlatinumPlacement.com > > > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > > _______________________________________________ > > For more information regarding industry leading CCIE Lab training, please > > visit www.ipexpert.com > > > > Are you a CCNP or CCIE and looking for a job? Check out > > www.PlatinumPlacement.com > > > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? 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