Hello,I have 2 routers, R2R6 connected via serial netw. 120.20.26.0/24Ospf Area 0 is on R2, netw. 120.20.234.0/27Isis on lo0 on R2 (2.2.2.2/24) and on the serials between the 2 routersOspf Area 3 on R6, netws. 120.20.60.0/24 and lo0, 6.6.6.6/24 Created a tunnel on R2 and R6 to connect area 3 to area 0. Works fine!! Like a champ!! Then I configured ipsec and applied it to the tunnel intfs. on both routers.The neighbors go down and routes disappear from the routing table!! 2d06h: %OSPF-5-ADJCHG: Process 1, Nbr 6.6.6.6 on Tunnel1 from FULL to DOWN, Neighbor Down: Dead timer expired Any ideas? Here is the config. R2#! crypto isakmp policy 1 authentication pre-share group 2 crypto isakmp key shared address 6.6.6.6 ! ! crypto ipsec transform-set myset esp-des esp-md5-hmac ! crypto map mymap local-address Loopback0 crypto map mymap 10 ipsec-isakmp set peer 6.6.6.6 set transform-set myset match address 199 ! interface Tunnel1 ip address 120.20.59.2 255.255.255.0 ip access-group 102 in tunnel source 120.20.26.2 tunnel destination 120.20.26.6 crypto map mymap ! access-list 102 permit ospf any any log access-list 102 permit gre any any log access-list 102 permit icmp any any echo access-list 102 permit icmp any any echo-reply access-list 102 permit tcp any any eq 50 access-list 102 permit tcp any any eq 51 access-list 102 permit udp any any eq isakmp! access-list 199 permit ip 120.20.0.0 0.0.255.255 120.20.0.0 0.0.255.255 access-list 199 permit ip 2.2.2.0 0.0.0.255 any log!What am I doing wrong?Please help.Thank you.Sincerely,CN
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