Questions tagged [cisco-asa]

Cisco's Adaptive Security Appliance (ASA) which combines functionality from the PIX, VPN 3000 series and Intrusion Prevention Systems (IPS) product lines

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How can I get a CRL automatically on cisco ASA? Do I have to configure OCSP?

I need to get a CRL on cisco ASA without requesting a crl manually. Do I have to configure OSCP, or is there anything else to get a crl automatically?
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25 views

Is it possible management IP address of ASA don't move to the new active ASA when failover happen?

I created a failover configuration on two ASA5545s. I set up, for example, 10.10.10.1 on the management interface of the primary ASA and 10.10.10.2 on the secondary ASA. I know when a failoever happen,...
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42 views

Cisco ASA and missing logs to syslog server

I would like to have some help with sending syslogs from a Cisco ASA 5555-X to a syslog server, graylog 3.2.1. When running the following settings I could see a lot of information in the buffer with ...
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Advanced split tunnel question

We are in a work from home state, and I am looking at optimizing VPN without sacrificing security. We are not using split tunnel. We have Direct Access on most clients - it is slow, and have moved ...
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24 views

Cisco ASA NAT/PAT Multiple WAN IPs

I'm trying to setup a NAT / PAT in ASA 5520, I'm able to do so very well when the Public IP I want translated to Internal host is configured on the Outside. Question is the ISP provided 1.1.1.1/30 ...
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30 views

Cisco ASA IPSec Site-to-Site VPN Rx Bytes not increasing

I have IPsec Site-to-Site VPN from my ASA to customer. After customer complain about VPN down, I reset the tunnel now I can see Login time duration 12h:34m Byte TX is 543240 and Byte Rx is 0. What ...
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19 views

Port Forwarding on Cisco ASA 5510

I have an EDI server behind a Cisco ASA 5510 version 8.2(1). Currently our EDI server sends over documents to our trading partners and they will look for our URL in this format http://1.1.1.1:1000. ...
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34 views

IKEV2 between ASA and Router problem

I am trying to configure a ikev2 vpn between asa and router using tunnel interface. I have encountered the problem of it not even establishing the connection. There is no problem in the connectivity ...
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24 views

Cisco ASA static nat one-to-many from interface address to object-group

Syntactically, the following set of statements is valid (at least as of 8.3): interface Ethernet0/0 nameif OUTSIDE ip address 192.0.2.1 255.255.255.0 interface Ethernet0/1 nameif INSIDE ip ...
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93 views

Slow(er) network speed due to possible VPN configuration issue?

CONTEXT I have an VPN connection between 2 ASA-5515's set up between our main site and new back up site. This is to replace our old backup site we have which is currently connected between an ASA-...
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24 views

ASA shows Action:Drop on packet-tracer, no reason or phase

I am doing a very simple lab with one asa and two computers. PC1 connected to dms PC2 connected to outside : Hardware: ASA5506, 4096 MB RAM, CPU Atom C2000 series 1250 MHz, 1 CPU (4 cores) : ASA ...
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47 views

Network transfer speed slow, possible VPN configuration issue? [closed]

CONTEXT I have an VPN connection between 2 ASA-5515's set up between our main site and new back up site. This is to replace our old backup site we have which is currently connected between an ASA-...
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52 views

Traffic redirection and failover of ASA with multiple ISPs [closed]

I have two ISP connections on two Cisco 3900 routers, in front of Cisco asa 5525 x with firepower services firewall. I want to configure the firewall to redirect traffic based on the source address ...
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47 views

Swapping to new ASA hardware - same configuration - what are the pitfalls?

I am replacing some old ASA 5515 with some new ASA 5516. We are going from a set up whereby we managed the boxes to one where a 3rd party is now managing them. I am currently going through the ...
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57 views

Cisco ASA5585-X replace SSP-20 with SSP-60

We have cisco ASA5585-X with SSP-20 running in production and we need more power so planning to replace SSP-20 with SSP-60 module but not sure we can just hot swap with SSP-20? Does ASA5585-X support ...
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37 views

IPSec does not work via backup interface

Cisco ASA 5506-X connected to two ISP - main and standby channel, interfaces outside_1 and outside_2. IPSec works via outside_1, but does not work via outside_2, if outside_1 down. At this moment ...
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47 views

Cisco 5505 ASA firewall Ipsec vpn- Can connect two outside different public ip to two different local subnets

I only get one IPSEC vpn connection up but not the other. Link to access configs on Google: https://drive.google.com/open?id=1yB_yIWvJ51A0UeNbkAEiTH9YMIEipqy_ profile1- outside interface - 66.x.x.x ...
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101 views

Cisco ASA and a Router?

I'm trying to understand networking and when looking at the different routers, firewalls and switches, I came across Cisco ASA. I've read that these can be used as firewalls and routers but others say ...
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396 views

Cisco ASA 5512X does not allow connections across VLANs to internet

First time doing a network, I'm a software guy normally. I am setting up a network to share and internet connections to multiple properties. The goal is to segment each property onto its own VLAN. I ...
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121 views

Can I set the AnyConnect group policy from users source IP?

Is it possible to configure a Group Policy to be used based on the source IP of the AnyConnect user? I want users connecting from a specific location (IP address) to get a specific Group policy. ...
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207 views

DNS expire-entry-timer has negative affect on ASA using FQDN ACL

I have a Cisco ASA using FQDN egress ACLs for a host that changes IP addresses every 10 mins (Apple APNS IP address pool). As soon as the TTL expires for the addresses, my internal server requests a ...
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98 views

Arpping responding with Cisco ASA interface mac address and mac address of machine

For some reason our Cisco is responding to arp requests between machines on the same switch. It's not breaking anything but it is slowing initial connections. I've been making a lot of changes on the ...
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216 views

Cisco ASA IKE Receiver: Runt ISAKMP packet discarded on Port 500

I have lots of ikev1 tunnel running on our production Cisco ASA5585 and today i have configured ikev2 tunnel for one of our new customer and i have started seeing following error, and not sure what is ...
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45 views

Cisco ASA Security Warning: Untrusted server cert after asa crash and reload

We have Cisco ASA 5505 working VPN anyconnect and it's been almost 1 year no issue, but last week it got crashed and reboot itself and after that we found it started throwing warning like following: ...
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127 views

Cisco ASA looping broadcast packet

I have small office where running cisco ASA ASA5506 and version 9.4(1) and it's also configured for IPsec VPN tunnel, My LAN subnet is 10.1.1.0/24 So i have found very interesting things in LAN ...
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108 views

Static PAT using Cisco ASA 5506 in cisco packet tracer [closed]

ciscoasa(config)#interface GigabitEthernet 1/3 ciscoasa(config-if)#nameif inside1 INFO: Security level for "inside1" set to 0 by default. ciscoasa(config-if)#security-level 100 ciscoasa(config-if)#no ...
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1answer
147 views

delete object network in cisco ASA with packet tracert

I used 5506 as firewall and I am trying to delete object network I created and it gives error as ERROR: unable to delete the object configuration. object (inside-net-obj) is being used. commands I ...
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92 views

ASA ISP limit of ISP Speed

I've got configured ASA with two ISP. First is main ISP and second for backup. Is possible to set on conf of ASA if the speed of main ISP will be at low bandwith, ASA will active a backup ISP?
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330 views

Cisco ASA IPsec tunnel QM FSM error

I am setting up Cisco 5585 ASA for IPsec tunnel with one of cloud company. we already have lots of tunnel for various cloud provider and life if good but recently this tunnel giving me hard time to ...
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1answer
177 views

Which interfaces do I need to configure to change MTU of Cisco Site-to-Site VPN

I have a number of Site-to-Site VPN tunnels in my network configurations. They are configured using Cisco ASA devices. To resolve some performance issues I am trying to change the MTU for traffic ...
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304 views

Cisco ASA failover monitor-interface policy

I have Cisco ASA 5585 and it has 10G interface in port channel where i configured multiple vlan sub-interface, is it worth to monitor every single sub-interface for failover policy or just monitor ...
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1answer
163 views

Cisco ASA 5506: The switching between the two providers by using Route-Map, creation backup channel

We have two providers. I want to make the second provider a backup channel. This configuration is most often offered: object network internal-pat-primary_obj nat (inside,outside1) dynamic interface ...
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197 views

Unable to Initiate a VPN tunnel using IKEv2 [closed]

I'm having an issue with a VPN tuunel between my Firewall (ASA 5516-X) and a third party firewall so I can't check the config in the second firewall. So I decide to debug my firewall and I realized ...
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Configuring Cisco ASA DAP policies from CLI! (Automating bulk task)

So I have given a task to add 1000s of DAP policies after main DAP file crashed and backup is not available due to unfortunate reasons. There is predefined way of doing it through ASDM which is very ...
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1answer
392 views

Unable to use HTTPS Managment “API” on Cisco ASA 9.12

After upgrading a Cisco ASA to code version 9.12(1)3, I am unable to reach the HTTPS management interface, which we use for many automation tools. Example curl that is functional in prior code (9.8 ...
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251 views

Meraki in Passthrough mode behind ASA

I am having trouble getting bidirectional traffic through a Meraki box behind a ASA 5508-X. I can see requests from the client VPN going from a client device to a server on our LAN, the server ...
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1answer
86 views

Cisco ASA rekeying

Good day I was hoping someone has seen this before, I have a ASA5520 that has a l2l tunnel to a Palo Alto firewall. Every 2 mins the the logs I see a rekey I have check our configuration and we have ...
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53 views

Cisco ASA 5525-X Input Current

In switches, like Cisco Catalyst 2960X-24TS-L, datasheet mention input power: 100 to 240 VAC, 1A to 0.5A. So, I assume input current = 1A@100VAC and 0.5A@240VAC or Cisco Catalyst 3850 + Power Supply ...
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503 views

Why does the Implicit Rule prevent traffic from passing?

I an testing traffic forwarding between different DMZ with different security levels. DMZ: interface GigabitEthernet0/1.351 vlan 351 nameif dmz security-level 10 ip address 10.100.20.1 255.255....
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36 views

Anyconnect Cisco 5505 VPN Group cannot Access Inside Network

Below is the Configuration to my Cisco ASA. I can connect to VPN but then trapped and cannot enter the inside network. ASA Version 9.2(4)27 ! hostname AwBTech-ASA domain-name awbtech enable password ...
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1answer
192 views

Cisco ASA 5508x, VLANs can't communicate

We're in the middle of moving to a more secure system, and the first step is to add this security appliance. Currently in place are two small quasi home-grade Cisco routers (rv260W and rv130). This ...
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2answers
704 views

Cisco ASA 5585X Internal-Data0/1 interface errors

I have noticed on Cisco ASA 5585 (SSP-20) interface error counter going up specially overrun but so far we haven't seen any production impact or issue, error rate is low so its not noticable but would ...
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1answer
78 views

Cisco ASA 5505- My subnet mask is different from Show Route

While I was troubleshooting a DNS issue on my 10.10.10.0/30 subnet, I noticed the Local (L) and Connected (C) has different values. I configured the 10.10.10.0 network to use 255.255.255.252 has the ...
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98 views

ASA 5505 cant access inside network from Anyconnect SSL Connection

So I have a ASA I can connect via SSL perfectly fine receiving internet.My issue is that I cannot ping any device on the network especially the inside network on my router. My topology is a ASA 5505 - ...
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131 views

Cisco ASA: Windows DHCP doesn't bind IP address after failover change active [closed]

Equipment and soft: Two Cisco ASA 5540, ASA ver. 9.1(7)32, active/standby failover DHCP server: Windows server 2016 Anyconnect VPN clients get IP addresses from DHCP servers. Everything works ...
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1answer
200 views

Traffic not send in IPsec with a Cisco ASA

I try to set up a site to site IPsec between an Ericsson router and a Cisco ASA, as shown below: My tunnel is UP and R1 seems to be working fine. However, my ASA does not forward traffic between ...
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1answer
839 views

Keep Cisco site-to-site tunnel up permanently

I have Cisco ASA site-to-site tunnel with remote and which i don't have control. I have following config: crypto ikev1 policy 10 authentication pre-share encryption aes hash sha group 2 ...
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1answer
198 views

Cisco ASA not passing traffic between two interface

I have Cisco 5506 with Security Plue License and following is my configuration. interface GigabitEthernet1/1 nameif inside security-level 100 ip address 10.0.10.1 255.255.255.0 ! interface ...
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261 views

Cisco ASA L2TP remote-access VPN with addresses assigned by DHCP

I have an ASA with a working Cisco VPN Client configuration set up. I am trying to phase out the Cisco VPN Client, initially in favour of L2TP. The Cisco Client policy has end-users fetch their ...
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44 views

How do I find out which NAT is getting hit?

I can see in packet captures that my packet's destination IP is getting translated. How do I find which NAT statement is responsible for the conversion if my device has over 200 NAT rules? I'm using ...

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