Hi all, We are trying to add SIP to our ZBF inspection. But rather than just adding match protocol SIP and seeing instant results, we get a protocol violation error on the firewall. Ive done some reading and most people claim that there was a bug in ...
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Forum Posts
Dear members,I'm trying to add a 'simple' rule for a resource internal to our network to be accessed from various external locations, I've added the rule under 'Access Rules' and entered the port required, it works fine if I leave 'Destination' to 'a...
I have a customer that has had issue with RDP. They try to RDP from 10.10.32.20 (LAN) to 10.1.2.248 (VPN external). I pulled the following from the logs:Jul 21 2015 12:54:08: %ASA-5-305013: Asymmetric NAT rules matched for forward and reverse flows...
Hi, We use the private space 10.0.0.0/8 for our corporate inside resources. One of our office has 10.29.0.0/16.We created a Site-2-site connection between 2 ASA between corporate network and office. This VPN works fine. From our corporate network we ...
Resolved! ZBF - Clarification
HI all, I am just seeking a bit of clarification with regards to Zonebased Firewalls (Cisco 1921)I have a ZBF with a number of internal Zones, non of these will need to talk between each other, I have an uplink to an upstream provider router that pro...
Resolved! identify ports between PCs
Hello GuysI need to identify ports between two PCs so that I can lock them down via ACL on ASA5512-x, the problem is how do I know what ports should be allowed and what should be denied? I am aware of 'netstat', but does it mean every single port on ...
Hello,I have ASA 5520 with interface 'inside' in local network and interface 'outside' facing the internet.there are line ssh 192.168.0.0 255.255.0.0 inside for access to ASA from local network. And deny any any rule for incoming traffic on 'outside'...
I need help understanding the packet flow through an ASA and understanding packet tracer results. NAT Control is enabled on the ASA. Using ASDM, I updated an ACL on the ASA with the following: acl_1out line 1 permit udp host origination_host host d...
Hi All,There is it... I've been fighting with an old school server admin for about 3 months now, and I came to conclusion to give up and do it his way... Just to make him!Anyways, there is the issue. Server admin guy has a few servers which I put i...
Resolved! Cisco ASA 5510 VER 8.2
Hello We have a cisco asa with internet working fine for inside users. We have set up a guest zone on the firewall. We are trying to allow users from the guest network to access the internet. What command do I have to set up on the firewall to allow ...
Hi,I'm trying to figure out wheiter or not the new multiple context BGPv4 and BGPv6 feature works ok. I've not been able to find any related information on the Internet regarding people actually using this feature. Anyone any experience with this?Our...
Hello All, I have a very basic issue with adding a sub interface. Iam new to this setup so maybe Iam missing something. Our Cisco 5512 appliance has a few subinterfaces e.g Interface GigabitEthernet0/1.1011 , is up, line protocol is up MAC addre...
Let's say for giggles I want to be able to access an internal switch from the outside using the outside interfaceusing telnet from a specific IP address. I know about the security this is just an exercise that someone asked me about. ASA is running 9...
Resolved! asa "show traffic" usage
Hi, We have a number of 5545X firewalls split into multiple contexts, and are seeing poor voice quality for some users. As part of the investigation I came across a sub-interface showing a large percentage of traffic being dropped, as indicated by th...
I have a customer with a 3 year APEX subscription license for 250 users. If they decide to replace their current HA ASA's whilst the subscription is still running can the license be transferred to the new ASA's? If so how is this achieved?
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| Subject | Author | Posted |
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| 06-05-2026 10:49 AM | ||
| 05-26-2026 07:54 AM | ||
| 05-02-2026 06:09 AM | ||
| 04-30-2026 12:46 AM | ||
| 04-24-2026 07:04 AM |
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