> вероятно у тебя R2's tunnel source недоступен с R1
> выложи вывод show tunnel interface tunnel 14 R1 при tunnel 14
R1#sh int tunnel 14
Tunnel14 is up, line protocol is down
Hardware is Tunnel
Description: to_R2
Internet address is 192.168.212.1/24
MTU 1514 bytes, BW 9 Kbit, DLY 500000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation TUNNEL, loopback not set
Keepalive set (10 sec), retries 3
Tunnel source XX.XX.211.102 (GigabitEthernet0/0.616), destination XX.XX.124.69
Tunnel protocol/transport GRE/IP
Key disabled, sequencing disabled
Checksumming of packets disabled
Tunnel TTL 255
Fast tunneling enabled
Tunnel transmit bandwidth 8000 (kbps)
Tunnel receive bandwidth 8000 (kbps)
Last input never, output 00:00:09, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/0 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
185444434 packets input, 4269470142 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
88894758 packets output, 2605056833 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
R2 при нерабочем туннеле ..
R2#sh interface Tunnel1
Tunnel1 is up, line protocol is up
Hardware is Tunnel
Internet address is 192.168.212.2/24
MTU 17916 bytes, BW 4096 Kbit/sec, DLY 50000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation TUNNEL, loopback not set
Keepalive not set
Tunnel source XX.XX.124.69 (GigabitEthernet0), destination XX.XX.211.102
Tunnel Subblocks:
src-track:
Tunnel1 source tracking subblock associated with GigabitEthernet0
Set of tunnels with source GigabitEthernet0, 1 member (includes iterators), on interface <OK>
Tunnel protocol/transport GRE/IP
Key disabled, sequencing disabled
Checksumming of packets disabled
Tunnel TTL 255, Fast tunneling enabled
Tunnel transport MTU 1476 bytes
Tunnel transmit bandwidth 8000 (kbps)
Tunnel receive bandwidth 8000 (kbps)
Last input 00:00:17, output 00:00:17, output hang never
Last clearing of "show interface" counters 3d09h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/0 (size/max)
5 minute input rate 2000 bits/sec, 3 packets/sec
5 minute output rate 3000 bits/sec, 4 packets/sec
40576495 packets input, 3157697553 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
83717792 packets output, 3679873180 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
==================================================
R2#debug tunnel
Tunnel Interface debugging is on
16:45:40.283: Tunnel1: adjacency fixup, XX.XX.124.69->XX.XX.211.102(tableid 0), tos set to 0x0
*Mar 1 16:45:40.495: Tunnel1: adjacency fixup, XX.XX.124.69->XX.XX.211.102(tableid 0), tos set to 0x0
*Mar 1 16:45:40.903: ipv4 decap oce used, oce_rc=0x0 tunnel Tunnel1
*Mar 1 16:45:40.903: Tunnel1: adjacency fixup, XX.XX.124.69->XX.XX.211.102(tableid 0), tos set to 0x0
*Mar 1 16:45:41.135: Tunnel1: tunnel notify state change - current up, evaluated up
interface - current up
*Mar 1 16:45:41.135: Tunnel1: tunnel notify state change - current up, evaluated up
interface - current up
*Mar 1 16:45:41.495: Tunnel1: adjacency fixup, XX.XX.124.69->XX.XX.211.102(tableid 0), tos set to 0x0
*Mar 1 16:45:41.731: Tunnel1: adjacency fixup, XX.XX.124.69->XX.XX.211.102(tableid 0), tos set to 0x0
*Mar 1 16:45:41.803: Tunnel1: adjacency fixup, XX.XX.124.69->XX.XX.211.102(tableid 0), tos set to 0x0
*Mar 1 16:45:42.735: Tunnel1: adjacency fixup, XX.XX.124.69->XX.XX.211.102(tableid 0), tos set to 0x0
*Mar 1 16:45:46.575: ipv4 decap oce used, oce_rc=0x0 tunnel Tunnel1
*Mar 1 16:45:50.635: ipv4 decap oce used, oce_rc=0x0 tunnel Tunnel1
*Mar 1 16:45:51.135: Tunnel1: tunnel notify state change - current up, evaluated up
==================================================