LISP Protocol (Location Identifier Separation Protocol)!
- The LISP protocol has become a brilliant stardom with the digital transformation that we are now experiencing.
- Today we will talk about the LISP protocol and its advantages and method of preparation by hands on lab together.
- The current ip routing protocol use a single numbering space [Ip address] to devices identity and attaches to the network.
- The Lisp Protocol architecture design separates the EID [Endpoint Identifier] are assigned to end device, RLOC [Routing Locator] are assigned to the Getaway to make up global routing system is running.
- Some of Terminology
- RLOC--- Routing Locator.
- EID--- Endpoint identifier.
- ETR--- Egress Tunnel Router.
- ITR --- Ingress Tunnel Router.
- XTR – This is mean both functions ITR, ETR and we configure this feature on the core network which has map resolver and map server.
- Some of advantage for Lisp protocol: Simplify routing operation, Scalability, support data center Virtualization, Mobility, reduces the complexities.
- Lab Topology -
Initial Configuration Part:
Router #1# Site 1
SITE-1(config) # Hostname SITE-1
SITE-1(config) # Ip cef
SITE-1(config) # Interface Loopback1
SITE-1(config) # Ip address 10.1.0.1 255.255.255.0
SITE-1(config) # Interface Ethernet0/0
SITE-1(config) # Ip address 1.1.1.1 255.255.255.0
SITE-1(config) # Ip route 0.0.0.0 0.0.0.0 1.1.1.2
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Router #2# Site 2
SITE-2(config) # Hostname SITE-2
SITE-2(config) # Ip cef
SITE-2(config) # Interface Loopback1
SITE-2(config) # Ip address 10.2.0.1 255.255.255.0
SITE-2(config) # Interface Ethernet0/1
SITE-2(config) # Ip address 2.1.1.1 255.255.255.0
SITE-2(config) # Ip route 0.0.0.0 0.0.0.0 2.1.1.2
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Router #3, 10, 11# Core Network
Router #3#
MS-MR (config) #Hostname MS-MR
MS-MR (config) #Interface Loopback1
MS-MR (config) #ip address 5.1.1.1 255.255.255.255
MS-MR (config) #Interface Ethernet0/1
MS-MR (config) #Ip address 10.1.23.3 255.255.255.0
MS-MR (config) #Interface Ethernet0/2
MS-MR (config) # Ip address 10.1.34.3 255.255.255.0
MS-MR (config) # Router ospf 1
MS-MR (config) # Network 5.1.1.1 0.0.0.0 area 0
MS-MR (config) #Network 10.1.23.0 0.0.0.255 area 0
MS-MR (config) #Network 10.1.34.0 0.0.0.255 area 0
MS-MR (config) # Router bgp 6500
MS-MR (config) # Bgp log-neighbor-changes
MS-MR (config) #Redistribute ospf 1 match internal external 1 external 2
MS-MR (config) # Neighbor 10.1.23.2 remote-as 6500
MS-MR (config) # Neighbor 10.1.34.4 remote-as 6500
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Router #10#
CORE-SITE-1(config) # Hostname CORE-SITE-1
CORE-SITE-1(config) # Interface Ethernet0/0
CORE-SITE-1(config) # Ip address 1.1.1.2 255.255.255.0
CORE-SITE-1(config) # Interface Ethernet0/1
CORE-SITE-1(config) # Ip address 10.1.23.2 255.255.255.0
CORE-SITE-1(config) # Router ospf 1
CORE-SITE-1(config) # Network 10.1.23.0 0.0.0.255 area 0
CORE-SITE-1(config) # Router bgp 6500
CORE-SITE-1(config) # Bgp log-neighbor-changes
CORE-SITE-1(config) # Network 1.1.1.0 mask 255.255.255.0
CORE-SITE-1(config) # Network 10.1.23.0 mask 255.255.255.0
CORE-SITE-1(config) # Neighbor 10.1.23.3 remote-as 6500
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Router #11#
CORe-Site-2(config) # Interface Ethernet0/1
CORe-Site-2(config) # Ip address 2.1.1.2 255.255.255.0
CORe-Site-2(config) # Interface Ethernet0/2
CORe-Site-2(config) # Ip address 10.1.34.4 255.255.255.0
CORe-Site-2(config) # Router ospf 1
CORe-Site-2(config) # Network 10.1.34.0 0.0.0.255 area 0
CORe-Site-2(config) # Router bgp 6500
CORe-Site-2(config) # Bgp log-neighbor-changes
CORe-Site-2(config) # Network 2.1.1.0 mask 255.255.255.0
CORe-Site-2(config) # Network 10.1.34.0 mask 255.255.255.0
CORe-Site-2(config) # Neighbor 10.1.34.3 remote-as 6500
**** Lisp Configuration ****
Router #1# Site 1
SITE-1(config) # Router lisp 1
SITE-1(config) # Locator-table default
SITE-1(config) # Locator-set site-1
SITE-1(config) # 1.1.1.1 Priority 100 weight 50
SITE-1(config) # Exit
!
SITE-1(config) # Eid-table default instance-id 0
SITE-1(config) # Database-mapping 10.10.0.0/24 1.1.1.1 priority 100 weight 50
SITE-1(config) # Ipv4 itr map-resolver 5.1.1.1
SITE-1(config) # Ipv4 itr
SITE-1(config) # Ipv4 etr map-server 5.1.1.1 key site1 {5.1.1.1 configure on the R 3}
SITE-1(config) # Ipv4 etr
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Router #2# Site 2
SITE-2(config) # Router lisp 1
SITE-2(config) # Locator-table default
SITE-2(config) # Locator-set site2
SITE-2(config) # 2.1.1.1 Priority 100 weight 50
SITE-2(config) #Exit
!
SITE-2(config) # Eid-table default instance-id 0
SITE-2(config) # Database-mapping 10.2.0.0/24 2.1.1.1 priority 100 weight 50
SITE-2(config) # Ipv4 itr map-resolver 5.1.1.1
SITE-2(config) # Ipv4 itr
SITE-2(config) # Ipv4 etr map-server 5.1.1.1 key site2
SITE-2(config) # Ipv4 etr
----------------------------------------------------------
MS-MR (config) # router lisp 1
MS-MR (config) # locator-table default
MS-MR (config) #site site-1
MS-MR (config) #authentication-key site1
MS-MR (config) # eid-prefix 10.1.0.0/24
MS-MR (config) #exit
!
MS-MR (config) #site site2
MS-MR (config) # authentication-key site2
MS-MR (config) #eid-prefix 10.2.0.0/24
MS-MR (config) # exit
!
MS-MR (config) #ipv4 map-server
MS-MR (config) # ipv4 map-resolver
MS-MR (config) #ipv4 itr
MS-MR (config) # ipv4 etr
MS-MR (config) # exit
-----------------------------------------------------------------
Verification
MS-MR (config) #do show lisp 1 site summary
----------- IPv4 ----------- ----------- IPv6 -----------
Site name Configured Registered Incons Configured Registered Incons
Site-1 1 1 0 0 0 0
site2 1 1 0 0 0 0
Number of configured sites: 2
Number of registered sites: 2
Sites with inconsistent registrations: 0
IPv4
Number of configured EID prefixes: 2
Number of registered EID prefixes: 2
MS-MR (config) #do show lisp 1 instance-id 0 site
LISP Site Registration Information
Site Name Last Up Who Last Inst EID Prefix
Register Registered ID
Site-1 00:00:50 yes 1.1.1.1 10.1.0.0/24
Site2 00:00:46 yes 2.1.1.1 10.2.0.0/24
--------------------
SITE-1(config) #do show ip lisp 1 database
LISP ETR IPv4 Mapping Database for LISP 1 EID-table default (IID 0), LSBs: 0x0, 1 entries
*** ALL CONFIGURED LOCAL EID PREFIXES HAVE NO ROUTE ***
*** REPORTING LOCAL RLOCS AS UNREACHABLE ***
10.10.0.0/24 *** NO ROUTE TO EID PREFIX ***
Locator Pri / Wgt Source State
1.1.1.1 100/ 50 cfg-addr site-self, reachable
----------------------
SITE-2(config) #do show ip lisp 1 database
LISP ETR IPv4 Mapping Database for EID-table default (IID 0), LSBs: 0x1, 1 entries
10.2.0.0/24
Locator Pri / Wgt Source State
2.1.1.1 100 / 50 cfg-addr site-self, reachable
***** I hope that has been informative for you and thank you *****
Mohamed Alhenawy