Hallo,
I have 2 routers, one using the Dialer interface as the uplink to DSL and another cellular 0/2/0 (LTE Router C1126). The one with the dialer interface works perfectly but the one with a cellular 0/2/0 does not (unless I twitch the ip route which I would like to avoid because once the router is set at the customer's premises and they have to restart it, then it definitely won't come up again)
Cellular0/2/0 x.x.x.x YES IPCP up up
Cellular0/2/1 unassigned YES unset administratively down down
ATM0/3/0 unassigned YES unset down down
Ethernet0/3/0 unassigned YES unset down down
Loopback0 x.x.x.x YES manual up up
Tunnel100 x.x.x.x YES manual up down
Tunnel200 x.x.x.x YES manual up down
Since the cellular interface is getting an IP address, what could be the reason the tunnels are not coming up?
R1#sh int tunnel100
Tunnel100 is up, line protocol is down
Hardware is Tunnel
Description: TUNNEL-TO-DMVPN-HUB-MUC13
Internet address is x.x.x.x/24
MTU 9972 bytes, BW 100 Kbit/sec, DLY 10000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation TUNNEL, loopback not set
Keepalive not set
Tunnel linestate evaluation down - linestate mode reg down
Tunnel source x.x.x.x (Cellular0/2/0)
Tunnel Subblocks:
src-track:
Tunnel100 source tracking subblock associated with Cellular0/2/0
Set of tunnels with source Cellular0/2/0, 2 members (includes iterators), on interface <OK>
Tunnel protocol/transport multi-GRE/IP
Key 0x64, sequencing disabled
Checksumming of packets disabled
Tunnel TTL 255, Fast tunneling enabled
Tunnel transport MTU 1472 bytes
Tunnel transmit bandwidth 8000 (kbps)
Tunnel receive bandwidth 8000 (kbps)
Tunnel protection via IPSec (profile "DMVPN-PROFILE-1")
Last input never, output 00:00:46, output hang never
Last clearing of "show interface" counters 00:19:46
Input queue: 0/375/0/0 (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
0 packets input, 0 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
78 packets output, 10600 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
I understand that when I configure an interface with vrf command, the ipv4/6 will be removed to prevent duplicating addresses. However, after that how do I, again, get an ip address without configuring a static IP?
For more context, this is the dialer interface that is working:
interface Dialer1
bandwidth 1000
bandwidth receive 18000
vrf forwarding INTERNET
ip address negotiated
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat outside
encapsulation ppp
dialer pool 1
no cdp enable
ppp authentication chap pap callin
ppp chap hostname xxx
ppp chap password 7 xxx
ppp pap sent-username xxx
service-policy output WAN-EDGE-4-CLASS
And the cellular interface is as below:
Router#sh run int cell0/2/0
Building configuration...
Current configuration : 67 bytes
!
interface Cellular0/2/0
ip address negotiated
ipv6 enable
end
Thanks.
Regards,
Joy
