Hi everyone, Very strange issue with FTP inspection on Cisco ASA5506-X (9.8(2)20). Passive mode works fine, BUT not for all files... For example (look at screenshot), user can download any file (txt) except this one 34313622.210. As you can see at screenshot, size of downloaded file 34313622.210 is incorrect. In Passive mode all other files can be downloaded without problems. The same issue from time to time apears for others users in different folders. I've checked these files - simple txt files. I can open them without problems on FTP server (Filezilla FTP 0.9.55) for reading or editing. If I try download the "incorect" file (34313622.210) in Active mode - everything works fine! The issue persists in Passive mode ONLY. When connection drops in PASV mode I see count of droped packets is growing in ASA. Invalid EPSV format drop grows as well: Could somebody tell me how to solve it? My configuration is pretty simple. I did it using this guide.
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Hellow everyone! I'm trying to configure Hairpin NAT on my ASA5506X (version 9.8.2.20) in order to allow internal users connect to internal servers through their Public IP address 82.52.222.122 (fake). I used this scenario on my old Cisco PIX515E (version 8.0.4.28) without any problems, but I cannot make it work on ASA. Could somebody help please?
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Are you talking about this? nat (inside-bridge,outside) 7 source static inside-bridge-network inside-bridge-network destination static bs-office-networks bs-office-networks no-proxy-arp route-lookup This syntax is output from ASDM. I didn't write it by hand in CLI.
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Hello everyone!
I have Cisco ASA5506-X (ver. 9.8(2)20, asdm 7.9(1)151) on my remote site. I want to setup VPN access with authentication from Active Directory. I want to use AD passwords for auth in ASDM and SSH (if it fails use LOCAL) also.
I already did it past on Cisco PIX515E and Cisco ASA5505 using this manual:
https://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-generation-firewalls/117641-config-asa-00.html
But now I have trouble because it is first time when I use radius server (NPS) located on remote site (behind IPSec Site-to-SIte). When I try to execute test I receive Time out.
Log:
Built outbound UDP connection 2053719 for outside:192.168.111.246/1645 (192.168.111.246/1645) to identity:86.222.222.222/7272 (86.222.222.222/7272)
where 192.168.111.246 is IP of my NPS servers located on remote site behind IPSec.
86.222.222.222 is my public IP of ASA5506.
I guess I need to make NAT exempt between inside-bridge and outside interface as I did it for inside1 and inside2 interfaces in order to avoid natting into outside interface.
nat (inside-bridge,outside) 7 source static inside-bridge-network inside-bridge-network destination static bs-office-networks bs-office-networks no-proxy-arp route-lookup
But I cannot do it:
P.S. If I make ping 192.168.111.246 from ASA with source inside-bridge then ping successful, but it fails from inside1 or 2 OR without source interface:
P.S.S: I understand that I can public my remote NPS server ports 1645-1646 to internet IP address on remote site and specify it address on ASA (with source as outside interface), but I don't want to do it (security considerations).
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ASA 5506X version 9.8.(2)20
ASDM 7.9.(1)151
Unfortunately, bridge-group is not fine solution. You can't create NAT rule on bridge-group. You must create NAT rules on each interface (for example dmz1, dmz2) of bridge-group instead:
Look at my example:
I have two ESX hosts. ESX1 connected to interface dmz1, ESX2 - to dmz2.
When my VM (ftp2) hosted on ESX1 NAT rule 36 working fine, BUT if my VM (ftp2) hosted on ESX2 NAT fails!
Why? I see in debug logs ASA trying to establish NAT connection from Outside to DMZ1 interface, but not trying to DMZ2 (where ftp2 situated). So you should to move rules (38-39) for dmz2 interface upper OR move VM ftp2 to ESX1!!!
"Fine"!?
Is it possible to solve this issue without additional switch in my network typology ??
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Vlan configuration is pretty simple at both sides for me. I confused about Etherchannel configuration on ESXi 5.5 side. I tried various configurations but still can't make work links between ASA and ESXi as desired: both servers must have connection to ASA at the same time through VLAN Trunked link. Even the one etherchannel link (with first server) is in ready state traffic still not working. I can't understand why.
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I don't want to install additional device to datacenter. That why I trying to configure ASA+ ESXi directly. We use licensed version with vCener with distributed switch.
Our hardware are: HP ProLiant DL360 gen8 and DL380 gen9.
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Thank you very much for your response, Dreminee
I know about Bridge-groups. I try to setup Port-channel, but I have questions about configuration on the VMware side. I have discussion about it on vmware forum, but without replies =(
P.S. I use the latest asa firmware.
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Hi everyone! I'm going to purchase Cisco ASA 5506-X-K9 Sec Plus device. I have plans to build the following schema: As you can see here are two VMWare ESXi servers connected to ASA5506-X firewall. vSwitch of each server has two vlans (vlan3 - inside area, vlan4 - DMZ). So I want to configure vlan trunks between ASA and VMWare. I need vlan trunks to save more ports of my VMWare server for another needs (SAN, redundacy links, additional servers interlinks and etc.). Can anybody tell me is it possible on Cisco ASA5506-X?
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Hi everyone! I'm going to purchase Cisco ASA 5506-X-K9 Sec Plus device. I have plans to build the following schema: As you can see here are two VMWare ESXi servers connected to ASA5506-X firewall. vSwitch of each server has two vlans (vlan3 - inside area, vlan4 - DMZ). So I want to configure vlan trunks between ASA and VMWare. I need vlan trunks to save more ports of my VMWare server for another needs (SAN, redundacy links, additional servers interlinks and etc.). Can anybody tell me is it possible on Cisco ASA5506-X?
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