{"id":292,"date":"2017-08-19T10:11:29","date_gmt":"2017-08-19T09:11:29","guid":{"rendered":"https:\/\/zed-network.fr\/?p=292"},"modified":"2017-08-19T10:11:29","modified_gmt":"2017-08-19T09:11:29","slug":"dmvpn-phase-3-with-ospf","status":"publish","type":"post","link":"https:\/\/zed-network.fr\/?p=292","title":{"rendered":"DMVPN Phase 3 with OSPF"},"content":{"rendered":"

Diagram
\n\"\"<\/h1>\n

Hub (R1)<\/h1>\n
HUB#\r\ninterface Ethernet0\/0\r\nip address 10.0.1.2 255.255.255.0\r\n!\r\nip route 0.0.0.0 0.0.0.0 10.0.1.1\r\n!\r\ninterface Tunnel0\r\nip address 100.0.0.1 255.255.255.0\r\nno ip redirects\r\nip mtu 1400\r\nip nhrp map multicast dynamic<\/strong>\r\nip nhrp network-id 1234\r\nip nhrp holdtime 360\r\nip nhrp redirect<\/strong>\r\nip tcp adjust-mss 1360\r\nip ospf network point-to-multipoint<\/strong>\r\nip ospf 1 area 0\r\ntunnel source Ethernet0\/0\r\ntunnel mode gre multipoint<\/pre>\n
Spoke (R2, R3)<\/h1>\n
SPOKE1#\r\n interface Ethernet0\/0\r\n ip address 10.0.2.2 255.255.255.0\r\n !\r\n ip route 0.0.0.0 0.0.0.0 10.0.2.1\r\n !\r\n interface Tunnel0\r\n ip address 100.0.0.2 255.255.255.0\r\n no ip redirects\r\n ip mtu 1400\r\n ip nhrp map 100.0.0.1 10.0.1.2\r\n ip nhrp map multicast 10.0.1.2<\/strong>\r\n ip nhrp network-id 1234\r\n ip nhrp holdtime 360\r\n ip nhrp nhs 100.0.0.1\r\n ip nhrp shortcut<\/strong>\r\n ip tcp adjust-mss 1360\r\n ip ospf network point-to-multipoint<\/strong>\r\n ip ospf 1 area 0\r\n tunnel source Ethernet0\/0\r\n tunnel mode gre multipoint\r\n\r\nSPOKE2#\r\n interface Ethernet0\/0\r\n ip address 10.0.3.2 255.255.255.0\r\n !\r\n ip route 0.0.0.0 0.0.0.0 10.0.3.1\r\n\r\n!\r\n interface Tunnel0\r\n ip address 100.0.0.3 255.255.255.0\r\n no ip redirects\r\n ip mtu 1400\r\n ip nhrp map 100.0.0.1 10.0.1.2\r\n ip nhrp map multicast 10.0.1.2<\/strong>\r\n ip nhrp network-id 1234\r\n ip nhrp holdtime 360\r\n ip nhrp nhs 100.0.0.1\r\n ip nhrp shortcut<\/strong>\r\n ip tcp adjust-mss 1360\r\n ip ospf network point-to-multipoint<\/strong>\r\n ip ospf 1 area 0\r\n tunnel source Ethernet0\/0\r\n tunnel mode gre multipoint<\/pre>\n
Troubleshooting<\/h1>\n
HUB#sh dmvpn\r\nLegend: Attrb --> S - Static, D - Dynamic, I - Incomplete\r\n N - NATed, L - Local, X - No Socket\r\n # Ent --> Number of NHRP entries with same NBMA peer\r\n NHS Status: E --> Expecting Replies, R --> Responding, W --> Waiting\r\n UpDn Time --> Up or Down Time for a Tunnel\r\n==========================================================================\r\n\r\nInterface: Tunnel0, IPv4 NHRP Details\r\nType:Hub, NHRP Peers:2,\r\n\r\n# Ent Peer NBMA Addr Peer Tunnel Add State UpDn Tm Attrb\r\n ----- --------------- --------------- ----- -------- -----\r\n 1 10.0.2.2 100.0.0.2 UP 01:15:52 D\r\n 1 10.0.3.2 100.0.0.3 UP 01:15:09 D\r\n<\/pre>\n
Before flow between spokes:<\/h2>\n
SPOKE1#sh dmvpn\r\nLegend: Attrb --> S - Static, D - Dynamic, I - Incomplete\r\n N - NATed, L - Local, X - No Socket\r\n # Ent --> Number of NHRP entries with same NBMA peer\r\n NHS Status: E --> Expecting Replies, R --> Responding, W --> Waiting\r\n UpDn Time --> Up or Down Time for a Tunnel\r\n==========================================================================\r\n\r\nInterface: Tunnel0, IPv4 NHRP Details\r\nType:Spoke, NHRP Peers:1,\r\n\r\n# Ent Peer NBMA Addr Peer Tunnel Add State UpDn Tm Attrb\r\n ----- --------------- --------------- ----- -------- -----\r\n 1 10.0.1.2 100.0.0.1 UP 01:16:18 S\r\n\u00a0\r\n\r\n\u00a0\r\n\r\nSPOKE1#ping 100.0.0.3\r\nType escape sequence to abort.\r\nSending 5, 100-byte ICMP Echos to 100.0.0.3, timeout is 2 seconds:\r\n!!!!!\r\n<\/pre>\n
After a dynamic tunnel to the other spoke is dynamically enabled<\/h2>\n
Success rate is 100 percent (5\/5), round-trip min\/avg\/max = 1\/1\/2 ms\r\nSPOKE1#sh dmvpn\r\nLegend: Attrb --> S - Static, D - Dynamic<\/strong><\/span>, I - Incomplete\r\nN - NATed, L - Local, X - No Socket\r\n# Ent --> Number of NHRP entries with same NBMA peer\r\nNHS Status: E --> Expecting Replies, R --> Responding, W --> Waiting\r\nUpDn Time --> Up or Down Time for a Tunnel\r\n==========================================================================\r\nInterface: Tunnel0, IPv4 NHRP Details\r\nType:Spoke, NHRP Peers:2,\r\n\r\n# Ent Peer NBMA Addr Peer Tunnel Add State UpDn Tm Attrb\r\n----- --------------- --------------- ----- -------- -----\r\n1 10.0.1.2 100.0.0.1 UP 01:16:31 S\r\n1 10.0.3.2 100.0.0.3 UP 00:00:01 D\r\n<\/strong><\/pre>\n","protected":false},"excerpt":{"rendered":"
Diagram Hub (R1) HUB# interface Ethernet0\/0 ip address 10.0.1.2 255.255.255.0 ! ip route 0.0.0.0 0.0.0.0 10.0.1.1 ! interface Tunnel0 ip address 100.0.0.1 255.255.255.0 no ip redirects ip mtu 1400 ip nhrp map multicast dynamic ip nhrp network-id 1234 ip nhrp holdtime 360 ip nhrp redirect ip tcp adjust-mss 1360 ip ospf network point-to-multipoint ip ospf […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"footnotes":""},"categories":[3,4],"tags":[],"class_list":["post-292","post","type-post","status-publish","format-standard","hentry","category-ccie-rs","category-cisco"],"_links":{"self":[{"href":"https:\/\/zed-network.fr\/index.php?rest_route=\/wp\/v2\/posts\/292","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zed-network.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zed-network.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zed-network.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zed-network.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=292"}],"version-history":[{"count":4,"href":"https:\/\/zed-network.fr\/index.php?rest_route=\/wp\/v2\/posts\/292\/revisions"}],"predecessor-version":[{"id":297,"href":"https:\/\/zed-network.fr\/index.php?rest_route=\/wp\/v2\/posts\/292\/revisions\/297"}],"wp:attachment":[{"href":"https:\/\/zed-network.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=292"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zed-network.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=292"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zed-network.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=292"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}