3G działa, WAN przez Fe4 działa.
Jednak mam problem przy failover, tzn w momencie, gdy w sh ip route bramą jest cellular, nie przechodzą pingi testujące ewentualny powrót działania łącza kablowego (Fe4) po awarii.
Łącze w takim przypadku nigdy nie wróci na Fe4
Dodam, że wszystko działa jeśli testuję nie adres w internecie tylko adres bramy (dla interfejsu Fe4).
Jak temu zaradzić?
Wszystko robię wg konfiguracji:
https://remote-lab.net/dynamic-routing- ... p-3g-link/
oraz http://www.cisco.com/en/US/docs/routers ... #wp1053163
Jednak nie używam interfejsu Dialer.
Kod: Zaznacz cały
ip sla 1
icmp-echo 8.8.8.8 source-interface FastEthernet4
frequency 5
ip sla schedule 1 life forever start-time now
Kod: Zaznacz cały
RTR-DOR#sh ip route
Gateway of last resort is 0.0.0.0 to network 0.0.0.0
S* 0.0.0.0/0 is directly connected, Cellular0
95.0.0.0/32 is subnetted, 1 subnets
C 95.41.x.x is directly connected, Cellular0
217.153.x.0/24 is variably subnetted, 2 subnets, 2 masks
C 217.153.x.z/29 is directly connected, FastEthernet4
L 217.153.x.y/32 is directly connected, FastEthernet4
Kod: Zaznacz cały
RTR-DOR#ping 8.8.8.8 source fastEthernet 4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
Packet sent with a source address of 217.153.x.y
.....
Success rate is 0 percent (0/5)
Kod: Zaznacz cały
RTR-DOR#
ip sla 1
icmp-echo 217.x.x.y-1 source-interface FastEthernet4
frequency 5
*Jul 31 07:37:24.725: %TRACKING-5-STATE: 1 ip sla 1 reachability Up->Down
RTR-DOR#
RTR-DOR#sh ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
+ - replicated route, % - next hop override
Gateway of last resort is 0.0.0.0 to network 0.0.0.0
S* 0.0.0.0/0 is directly connected, Cellular0
95.0.0.0/32 is subnetted, 1 subnets
C 95.41.c.cis directly connected, Cellular0
217.x.x.0/24 is variably subnetted, 2 subnets, 2 masks
C 217.x.x.y/29 is directly connected, FastEthernet4
L 217.x.x.x/32 is directly connected, FastEthernet4
RTR-DOR#
RTR-DOR#
RTR-DOR#ping 8.8.8.8
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 408/740/1612 ms
!!to przez int cellular
RTR-DOR#
RTR-DOR#ping 8.8.8.8 source fastEthernet 4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
Packet sent with a source address of 217.x.x.x
.....
Success rate is 0 percent (0/5)
RTR-DOR#ping 217.x.x.x source fa 4
!!!!!!!!!!!!!ping na ip bramy fe4 (bezposr podłączony)
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 217.153.76.129, timeout is 2 seconds:
Packet sent with a source address of 217.153.76.133
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/5/12 ms
RTR-DOR#
RTR-DOR#
*Jul 31 07:38:19.773: %TRACKING-5-STATE: 1 ip sla 1 reachability Down->Up
RTR-DOR#
RTR-DOR#ping 8.8.8.8 source fastEthernet 4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
Packet sent with a source address of 217.x.x.y
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 20/21/24 ms
RTR-DOR#sh ip route
Gateway of last resort is 217.x.x.yto network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 217.x.x.y, FastEthernet4
95.0.0.0/32 is subnetted, 1 subnets
C 95.41.c.c is directly connected, Cellular0
217.x.x.0/24 is variably subnetted, 2 subnets, 2 masks
C 217.x.x.y/29 is directly connected, FastEthernet4
L 217.x.x.x/32 is directly connected, FastEthernet4
RTR-DOR#