Yes, you can make the connection with the virtual hsrp ip, but when the standby router become active the bgp session is lost and the traffic is interrupted. The recommendation is the you make the session with both routers and tune the bgp timers if it is an ethernet environment. Best regards! > From: [email protected] > Subject: CCIE_RS Digest, Vol 81, Issue 26 > To: [email protected] > Date: Thu, 11 Oct 2012 18:24:11 -0400 > > Send CCIE_RS mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://onlinestudylist.com/mailman/listinfo/ccie_rs > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of CCIE_RS digest..." > > > Today's Topics: > > 1. Re: Hello team can we make bgp neighbor ship HSRP virtual IP > ? (Bob McCouch) > 2. Re: Hello team can we make bgp neighbor ship HSRP virtual IP > ? (Nick Bonifacio) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 11 Oct 2012 18:18:34 -0400 > From: Bob McCouch <[email protected]> > To: Nick Bonifacio <[email protected]> > Cc: "[email protected]" <[email protected]> > Subject: Re: [OSL | CCIE_RS] Hello team can we make bgp neighbor ship > HSRP virtual IP ? > Message-ID: <-3630078560621538404@unknownmsgid> > Content-Type: text/plain; charset=ISO-8859-1 > > Here's someone from Cisco agreeing that it works but pointing out one of > the issues mentioned earlier, that the routers doing HSRP wouldn't be able > to initiate the BGP open: > > https://supportforums.cisco.com/thread/200104 > > Bob > -- > Sent from my iPhone, please excuse any typos. > > On Oct 11, 2012, at 6:16 PM, Nick Bonifacio <[email protected]> wrote: > > There has to be instability issues, right? Flapping, arps and macs getting > hosed perhaps? > > *Paging Dr. Marko* > > ------------------------------ > *From:* Tony Singh <[email protected]> > *To:* Nick Bonifacio <[email protected]> > *Cc:* Bob McCouch <[email protected]>; "[email protected]" < > [email protected]> > *Sent:* Thursday, October 11, 2012 6:13 PM > *Subject:* Re: [OSL | CCIE_RS] Hello team can we make bgp neighbor ship > HSRP virtual IP ? > > 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://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://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://www.platinumplacement.com/> > > > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > > > ------------------------------ > > Message: 2 > Date: Thu, 11 Oct 2012 15:24:08 -0700 (PDT) > From: Nick Bonifacio <[email protected]> > To: Bob McCouch <[email protected]> > Cc: "[email protected]" <[email protected]> > Subject: Re: [OSL | CCIE_RS] Hello team can we make bgp neighbor ship > HSRP virtual IP ? > Message-ID: > <[email protected]> > Content-Type: text/plain; charset=iso-8859-1 > > R6#clear ip bgp * > *Oct ?9 20:02:15.263: BGP: 10.0.46.55 went from Idle to Active > *Oct ?9 20:02:15.263: BGP: 10.0.46.55 open active, local address 10.0.46.6 > *Oct ?9 20:02:15.267: BGP: 10.0.46.55 read request no-op > *Oct ?9 20:02:15.267: BGP: 10.0.46.55 open failed: Connection refused by > remote host, open active delaye ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? d 3419ms > (5000ms max, 90% jitter) > R6# > *Oct ?9 20:02:18.523: BGPNSF state: 10.0.46.55 went from nsf_not_active to > nsf_not_active > *Oct ?9 20:02:18.523: BGP: 10.0.46.55 went from Active to Idle > *Oct ?9 20:02:20.383: BGP: 10.0.46.55 went from Idle to Active > *Oct ?9 20:02:20.383: BGP: 10.0.46.55 open active, local address 10.0.46.6 > *Oct ?9 20:02:20.387: BGP: 10.0.46.55 read request no-op > *Oct ?9 20:02:20.387: BGP: 10.0.46.55 open failed: Connection refused by > remote host, open active delaye ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? d 1804ms > (5000ms max, 90% jitter) > *Oct ?9 20:02:22.191: BGP: 10.0.46.55 open active, local address 10.0.46.6 > *Oct ?9 20:02:22.191: BGP: 10.0.46.55 read request no-op > *Oct ?9 20:02:22.195: BGP: 10.0.46.55 open failed: Connection refused by > remote host, open active delaye ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? d 6480ms > (10000ms max, 60% jitter) > *Oct ?9 20:02:28.367: BGP: Applying map to find origin for 192.46.1.0/24 > *Oct ?9 20:02:28.371: BGP: Applying map to find origin for 192.46.2.0/24 > *Oct ?9 20:02:28.371: BGP: Applying map to find origin for 192.46.3.0/24 > *Oct ?9 20:02:28.371: BGP: Applying map to find origin for 192.46.4.0/24 > *Oct ?9 20:02:28.371: BGP: Applying map to find origin for 192.46.5.0/24 > *Oct ?9 20:02:28.371: BGP: Applying map to find origin for 192.46.6.0/24 > *Oct ?9 20:02:28.371: BGP: Applying map to find origin for 192.46.7.0/24 > *Oct ?9 20:02:28.371: BGP: Applying map to find origin for 192.46.8.0/24 > *Oct ?9 20:02:28.371: BGP: Applying map to find origin for 192.46.9.0/24 > *Oct ?9 20:02:28.371: BGP: Applying map to find origin for 192.46.10.0/24 > *Oct ?9 20:02:28.371: BGP: Applying map to find origin for 192.46.11.0/24 > *Oct ?9 20:02:28.371: BGP: Applying map to find origin for 192.46.12.0/24 > *Oct ?9 20:02:28.371: BGP: Applying map to find origin for 192.46.13.0/24 > *Oct ?9 20:02:28.371: BGP: Applying map to find origin for 192.46.14.0/24 > *Oct ?9 20:02:28.371: BGP: Applying map to find origin for 192.46.15.0/24 > *Oct ?9 20:02:28.675: BGP: 10.0.46.55 open active, local address 10.0.46.6?LOL > *Oct ?9 20:02:28.675: BGP: 10.0.46.55 read request no-op > *Oct ?9 20:02:28.679: BGP: 10.0.46.55 open failed: Connection refused by > remote host, open active delaye ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? d 18082ms > (20000ms max, 60% jitter) > *Oct ?9 20:02:40.635: BGP: 10.0.46.55 passive open to 10.0.46.1 > *Oct ?9 20:02:40.635: BGP: 10.0.46.55 went from Active to Idle > *Oct ?9 20:02:40.635: BGP: 10.0.46.55 went from Idle to Connect > *Oct ?9 20:02:40.635: BGP: 10.0.46.55 read request no-op > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 rcv message type 1, length (excl. > header) 34 > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 rcv OPEN, version 4, holdtime 180 > seconds > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 went from Connect to OpenSent > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 sending OPEN, version 4, my as: 456, > holdtime 180 seconds > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 rcv OPEN w/ OPTION parameter len: 24 > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 rcvd OPEN w/ optional parameter type 2 > (Capability) len 6 > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 OPEN has CAPABILITY code: 1, length 4 > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 OPEN has MP_EXT CAP for afi/safi: 1/1 > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 rcvd OPEN w/ optional parameter type 2 > (Capability) len 2 > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 OPEN has CAPABILITY code: 128, length 0 > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 OPEN has ROUTE-REFRESH capability(old) > for all address-families > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 rcvd OPEN w/ optional parameter type 2 > (Capability) len 2 > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 OPEN has CAPABILITY code: 2, length 0 > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 OPEN has ROUTE-REFRESH capability(new) > for all address-families > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 rcvd OPEN w/ optional parameter type 2 > (Capability) len 6 > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 OPEN has CAPABILITY code: 65, length 4 > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 OPEN has 4-byte ASN CAP for: 456 > BGP: 10.0.46.55 rcvd OPEN w/ remote AS 456, 4-byte remote AS 456 > *Oct ?9 20:02:40.639: BGP: 10.0.46.55 went from OpenSent to OpenConfirm > *Oct ?9 20:02:40.643: BGP: 10.0.46.55 send message type 1, length (incl. > header) 53 > *Oct ?9 20:02:40.651: BGP: 10.0.46.55 went from OpenConfirm to Established > *Oct ?9 20:02:40.651: %BGP-5-ADJCHANGE: neighbor 10.0.46.55 Up > > > very interesting indeed........ > > ________________________________ > From: Bob McCouch <[email protected]> > To: Nick Bonifacio <[email protected]> > Cc: Tony Singh <[email protected]>; "[email protected]" > <[email protected]> > Sent: Thursday, October 11, 2012 6:18 PM > Subject: Re: [OSL | CCIE_RS] Hello team can we make bgp neighbor ship HSRP > virtual IP ? > > > Here's someone from Cisco agreeing that it works but pointing out one of the > issues mentioned earlier, that the routers doing HSRP wouldn't be able to > initiate the BGP open: > > https://supportforums.cisco.com/thread/200104 > > Bob > --? > Sent from my iPhone, please excuse any typos. > > On Oct 11, 2012, at 6:16 PM, Nick Bonifacio <[email protected]> wrote: > > > There has to be instability issues, right? ?Flapping, arps and macs getting > hosed perhaps? ? > > > > > >*Paging Dr. Marko* > > > > > > > >________________________________ > > From: Tony Singh <[email protected]> > >To: Nick Bonifacio <[email protected]> > >Cc: Bob McCouch <[email protected]>; "[email protected]" > ><[email protected]> > >Sent: Thursday, October 11, 2012 6:13 PM > >Subject: Re: [OSL | CCIE_RS] Hello team can we make bgp neighbor ship HSRP > >virtual IP ? > > > > > >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 > >> > >> > >> > > > > > > End of CCIE_RS Digest, Vol 81, Issue 26 > *************************************** _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
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