06-10-2022 12:06 AM - last edited on 06-10-2022 12:13 AM by Yanli Sun
My ftd can't connect to fmc because of routing reasons, now I need to add a static route and make the configuration priority higher than ospf
06-27-2022 01:01 PM
Does the management traffic for the FTDs pass through FTD-B ? If yes, instead of an any any rule right now, I suggest doing a packet tracer first. One with source of FMC and destination of FTD mgmt IP and destination port of tcp/8305. Then also in the reverse direction FTD mgmt IP to FMC with destination port of tcp/8305.
If you are looking for technical support I suggest contacting your local Cisco partner, or if you are able to open a TAC case directly then you can do so.
07-07-2022 12:51 AM
Please look at the data I replied to below
07-07-2022 02:25 AM
Please read my last post and provide the requested information
07-07-2022 01:56 AM
root@ASCHZXS-12F-JF-A02-CISCO-FMC-01:/Volume/home/admin# telnet 172.17.2.10 8305
Trying 172.17.2.10...
Connected to 172.17.2.10.
Escape character is '^]'.
^C
^CConnection closed by foreign host.
root@ASCHZXS-12F-JF-A02-CISCO-FMC-01:/Volume/home/admin# telnet 172.17.2.11 8305
Trying 172.17.2.11...
telnet: connect to address 172.17.2.11: Connection refused
root@ASCHZXS-12F-JF-A02-CISCO-FMC-01:/Volume/home/admin#
172.17.2.10 is a FTD_A that I can't manage right now
172.17.2.11 is the FTD_B I can manage today
Here is FTD-A Request FMC (172.16.1.31) 8305
root@ASCHZXS-12F-JF-A02-FW-2110-01:/home/admin# telnet 172.16.1.31 8305
Trying 172.16.1.31...
Connected to 172.16.1.31.
Escape character is '^]'.
^C^C^CConnection closed by foreign host.
root@ASCHZXS-12F-JF-A02-FW-2110-01:/home/admin#
06-26-2022 09:04 PM
root@ASCHZXS-12F-JF-A02-CISCO-FMC-01:/Volume/home/admin# ping 172.16.2.251
PING 172.16.2.251 (172.16.2.251) 56 (84) bytes of data.
64 bytes from 172.16.2.251: icmp_req=1 ttl=63 time=0.266 ms
64 bytes from 172.16.2.251: icmp_req=2 ttl=63 time=0.236 ms
^C
— 172.16.2.251 ping statistics —
2 packets transmited, 2 received, 0% packet loss, time 1032ms
rtt min/avg/max/mdev = 0.236/0.251/0.266/0.015 ms
root@ASCHZXS-12F-JF-A02-CISCO-FMC-01:/Volume/home/admin# ping 172.17.2.10
PING 172.17.2.10 (172.17.2.10) 56 (84) bytes of data.
64 bytes from 172.17.2.10: icmp_req=1 ttl=60 time=7.89 ms
64 bytes from 172.17.2.10: icmp_req=2 ttl=60 time=7.90 ms
64 bytes from 172.17.2.10: icmp_req=3 ttl=60 time=7.93 ms
^C
— 172.17.2.10 ping statistics —
3 packets transmited, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 7.891/7.907/7.932/0.104 ms
root@ASCHZXS-12F-JF-A02-CISCO-FMC-01:/Volume/home/admin# ping 172.17.2.11
PING 172.17.2.11 (172.17.2.11) 56 (84) bytes of data.
64 bytes from 172.17.2.11: icmp_req=1 ttl=60 time=8.18 ms
64 bytes from 172.17.2.11: icmp_req=2 ttl=60 time=8.08 ms
64 bytes from 172.17.2.11: icmp_req=3 ttl=60 time=7.91 ms
^C
— 172.17.2.11 ping statistics —
3 packets transmited, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 7.916/8.062/8.183/0.110 ms
I've tried in fmc ping FTD Three are available but only 172.17.2.10 display is disabled.
07-07-2022 09:56 AM - edited 07-07-2022 09:59 AM
The FTD devices reach out to the FMC out of their management ports. It could be that the FTD-A is not configured with the right gateway? you can check that with the command "show network" from the > mode (CLISH mode) on the FTD. If the gateway is correct, it could be related to some firewall in the middle between the FTD devices and the FMC? if you have a firewall, that firewall should allow the FTD traffic between the FTD and the FMC on port 8305/tcp, that is bidirectional, from the FTD to the FMC and vice-versa.
07-07-2022 06:59 PM
07-08-2022 12:34 AM
You need to identify the route that management traffic is taking between FMC and FTD.
Are the two FTDs in HA pair?
Is management traffic being routed through a data interface on the FTD that is having issues?
Or, is traffic being routed through the other FTD that is not having issues?
can you ping the FTD from 172.17.3.254 to 172.17.2.10 (the gateway that mgmt traffic is using)?
You can add an ACL entry using the commands I posted earlier, just change the configuration from routing to access-list. If this solves the issue you will need to add the correct access rule in the FMC before you deploy or the configuration will be overwritten.
07-08-2022 12:53 AM
07-08-2022 01:31 AM
It seems that the 172.16.1.254 does not know how to get back to the FTD-A IP address? Please share your L1/L3 topology diagram for review.
07-10-2022 09:13 PM
07-13-2022 08:27 PM
telnet 8305 Test on FMC
FTD-B 172.17.2.11 8305
root@ASCHZXS-12F-JF-A02-CISCO-FMC-01:/Volume/home/admin# telnet 172.17.2.11 8305
Trying 172.17.2.11...
telnet: connect to address 172.17.2.11: Connection refused
FTD-A 172.17.2.10 8305
root@ASCHZXS-12F-JF-A02-CISCO-FMC-01:/Volume/home/admin# telnet 172.17.2.10 8305
Trying 172.17.2.10...
Connected to 172.17.2.10.
Escape character is '^]'.
PING 172.17.2.10: 56 data bytes, press CTRL_C to break
Reply from 172.17.2.10: bytes=56 Sequence=1 ttl=61 time=7 ms
Reply from 172.17.2.10: bytes=56 Sequence=2 ttl=61 time=7 ms
Reply from 172.17.2.10: bytes=56 Sequence=3 ttl=61 time=7 ms
Reply from 172.17.2.10: bytes=56 Sequence=4 ttl=61 time=7 ms
Reply from 172.17.2.10: bytes=56 Sequence=5 ttl=61 time=7 ms
--- 172.17.2.10 ping statistics ---
5 packet(s)transmitted
5 packet(s)received
0.00% packet loss
round-trip min/avg/max = 7/7/7 ms
ping FTD-A -B on 172.16.1.254 (gateway)
PING 172.17.2.11: 56 data bytes, press CTRL_C to break
Reply from 172.17.2.11: bytes=56 Sequence=1 ttl=61 time=7 ms
Reply from 172.17.2.11: bytes=56 Sequence=2 ttl=61 time=7 ms
Reply from 172.17.2.11: bytes=56 Sequence=3 ttl=61 time=7 ms
Reply from 172.17.2.11: bytes=56 Sequence=4 ttl=61 time=7 ms
Reply from 172.17.2.11: bytes=56 Sequence=5 ttl=61 time=7 ms
--- 172.17.2.11 ping statistics ---
5 packet(s)transmitted
5 packet(s)received
0.00% packet loss
round-trip min/avg/max = 7/7/7 ms
07-10-2022 07:07 PM
07-11-2022 07:06 PM
07-22-2022 05:21 AM - edited 07-22-2022 05:21 AM
Since you are able to ping from FMC to both FTD, communication is there. Has the FTD or FMC been replaced? is that how this issue happened?
could you run the command "sftunnel-status" on FTD-A. This is done from the > prompt
You might also want to try restarting the sftunnel on FTD-A
> expert
admin@FTD:~$ sudo su
Password:
root@FTD:/# manage_procs.pl
**************** Configuration Utility **************
1 Reconfigure Correlator
2 Reconfigure and flush Correlator
3 Restart Comm. channel
4 Update routes
5 Reset all routes
6 Validate Network
0 Exit
**************************************************************
Choose option 3
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide