Can I create a VPN tunnel where the remote router is behind a gateway router that uses Port Address Translation? In other words, one public IP for the entire private network? We're using a Concentrator 3005 at our corporate location and an 831 at the...
Network Security
Engage with peers and experts on network security topics such as Secure Firewall Threat Defense, Adaptive Security Appliance, Secure Firewall Management Center, and Security Cloud Control.
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for
- Cisco Community
- Technology and Support
- Security
- Network Security
Options
- Mark all as New
- Mark all as Read
- Float this item to the top
- Subscribe
- Bookmark
- Subscribe to RSS Feed
- Threaded format
- Linear Format
- Sort by Topic Start Date
Labels
-
AAA
(9) -
Access Control Server (ACS)
(6) -
Access List
(4) -
ACI
(10) -
Advanced Threats
(1) -
AMP for Endpoints
(1) -
AnyConnect
(3) -
APIs
(1) -
Appliances
(18) -
ASA
(1) -
ASR 1000 Series
(1) -
Branch Router
(2) -
Buying Recommendation
(87) -
Catalyst 2000
(1) -
Catalyst 3000
(2) -
Catalyst 4000
(1) -
Catalyst 6000
(1) -
Catalyst 8000
(1) -
Catalyst 9000
(2) -
Catalyst Switch
(3) -
Catalyst Wireless Controllers
(1) -
Cisco
(1) -
Cisco Adaptive Security Appliance (ASA)
(9,639) -
Cisco Bugs
(61) -
Cisco Cafe
(25) -
Cisco CLI Analyzer
(1) -
Cisco Cloud Services Router
(1) -
Cisco Defense Orchestrator (CDO)
(150) -
Cisco Firepower Device Manager (FDM)
(812) -
Cisco Firepower Management Center (FMC)
(2,909) -
Cisco Firepower Threat Defense (FTD)
(3,163) -
Cisco Press Cafe
(1) -
Cisco Secure Firewall Device Management (FDM)
(49) -
Cisco Secure Firewall Management Center (FMC)
(260) -
Cisco Secure Firewall Threat Defense (FTD)
(312) -
Cisco Security Cloud Control
(16) -
Cisco Security Manager (CSM)
(3) -
Cisco Software
(20) -
CISCO START ANZ
(1) -
Cisco Threat Response
(1) -
Cisco Vulnerability Management
(46) -
Cloud
(1) -
Cloud Provisioning
(1) -
Cloud Security
(3) -
Community Bug or Issue
(1) -
Community Feedback Forum
(31) -
Community Ideas
(18) -
Compliance and Posture
(1) -
Crypto
(1) -
CSC Content with No Valid Community to Post
(1) -
CUBE
(1) -
CUCM
(1) -
Data Center Networking
(1) -
Device Admin
(15) -
EEM Scripting
(1) -
Emergency Responder
(1) -
Endpoint Security
(6) -
Enterprise Agreement
(1) -
Event Analysis
(265) -
FirePOWER
(1) -
Firepower Chassis Manager (FCM)
(2) -
Firepower Device Manager (FDM)
(16) -
Firepower Management Center (FMC)
(408) -
Firepower Threat Defense (FTD)
(221) -
Firewall Migration Manager (FMM)
(1) -
Firewall Migration Tool (FMT)
(38) -
Firewalls
(1,171) -
FMC
(1) -
General
(2) -
Guest
(1) -
Identity Services Engine (ISE)
(9) -
IE3300
(1) -
Integrated Security
(8) -
Integrated Security Architecture
(1) -
Integrations
(4) -
Investigation
(2) -
iOS
(1) -
IPS and IDS
(6,581) -
IPS and IDS1
(1) -
IPS-IDS
(1) -
IPSEC
(1) -
IPv6 Configuration
(1) -
ISE
(1) -
LAN Switching
(7) -
License
(325) -
MPLS
(1) -
Multicloud Defense
(3) -
Network Management
(94) -
Network Security
(2) -
Networking
(1) -
NFVIS
(1) -
NGFW Firewalls
(37,594) -
NGIPS
(1,874) -
Online Tools and Resources
(1) -
Optical Networking
(3) -
Optics
(1) -
Other Collaboration Topics
(1) -
Other Community Feedback
(4) -
Other Firewalls
(1) -
Other NAC
(18) -
Other Network
(2) -
Other Network Security Topics
(10,792) -
Other Networking
(9) -
Other Routers
(9) -
Other Routing
(24) -
Other Routing and Switching topics
(2) -
Other Security
(1) -
Other Security Topics
(18) -
Other Switches
(12) -
Other Switching
(4) -
Other VPN Topics
(1) -
Passive Identity
(1) -
Physical Security
(21) -
Policy and Access
(2) -
Prioritization
(3) -
Remote Access
(2) -
Room Endpoints
(1) -
Routing Protocols
(9) -
SD-WAN Security
(1) -
Secure Network Analytics
(1) -
Security
(4) -
Security Management
(645) -
Segmentation
(3) -
Service Providers
(1) -
Small Business Routers
(5) -
Small Business Security
(2) -
Sourcefire
(2) -
Support
(2) -
Threat Containment
(6) -
Threat Defense
(1) -
Threat Grid
(1) -
Unified Computing System (UCS)
(1) -
Voice Gateways
(1) -
VPN
(28) -
VPN and AnyConnect
(1) -
Vulnerability Management
(46) -
WAN
(8) -
Web Security
(5) -
Webex Teams
(1) -
Wired
(4) -
Wireless Security
(1)
- « Previous
- Next »
Forum Posts
At my new job, I am no longer in the role of supporting our Firewall/VPN (all done at Corporate). I've recently been told that they are replacing all of our PIX firewalls with 1721 Routers to handle our Firewall/VPN connections. My previous experienc...
Hello all, I have a PIX 501, that currently is configured using the 192.168.21.x internal subnet. Because of various vpn issues and other problems not related with the PIX, I would like to change the internal range to 10.x.x.x. For some reason, I rem...
I have a VPN3002 Hardware Client (172.16.1.x) that is accessing a VPN3005 Concentrator (192.168.x.x) in Network Extension Mode. On the VPN3005, I have a LAN-to-LAN connection to another VPN device. I can access addresses in all scenarios except for f...
I am experiencing difficulty in allowing my VPN clients to browse network resources by IP and by NETBIOS names.My clients connect and authenticate fine. Any suggestions on what might be causing the problem?I do have VPDN entries that point to the pro...
hi,i want to know difference between restricted and unrestricted pix firwall.Arun Kachroo
Dear All ,iam getting lot of alerts on 9017 - Back Door Probe (TCP 5401) . i found in my vms server ( D:\Program Files\CSCOpx\CSAMC\cfg ) ssl-bundle file [BUNDLE_CONF]mc.server_cert_cn=itvmsmc.http_port=80mc.https_port=5401mc.alt_https_port=443is tht...
I currently have my PIX receiving NTP from an trusted outside source. I would like to set my switches to pick up their time from the PIX. I don't see anywhere that this is possible. I have tried using my inside interface as the source server for the ...
Have a question about routing with a PIX. I have 4 branches with all PIX 515E's. This is in full mesh VPN topology. My question is, can I add a failover route through another branch if one link fails? I'm curious if i'm going to have to enable OSPF f...
Resolved! Emailing events automatically
On VMS 2.2 with SecMon 1.2.3, the section admin/event rule allows you to send an email. I have a requirement to send an email for various signatures when they are triggered on a particular sensor. The email should include the source and the destinati...
I am looking for any third party software that may replace SecMon and IDS-MC. We have had so many issues with it that it is time to find a solution by looking for another vendor to manage Cisco's NID's. If anyone has had any luck please let me know.
Hey Everyone,I have a small setup and I'm trying to do a little learning here. What I want to do is block a group of interal hosts from accessing the internet, while allowing a couple of others to continue to do so. What I did was the following:1) Cr...
Hello all,I am trying to understand the relationship between number of active/idle connections and memory utilization in PIX firewall. The PIX under consideration is 520 running 6.2.2 software on it. How much memory PIX uses per active vs idle connec...
Does PIX "strip unknown headers"? ThanksJeff
Dear Sir,For management purpose in the implementation phase i want to enable telnet on the outside interface of PIX-506E firewall details for which is as given below.Kindly guide me with the sample config with necessary access-list for thesame.Firewa...
Learn, share, save
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
Unanswered Topics
| Subject | Author | Posted |
|---|---|---|
| 07-22-2026 05:00 AM | ||
| 07-16-2026 06:39 AM | ||
| 07-15-2026 08:48 AM | ||
| 07-13-2026 11:05 AM | ||
| 06-24-2026 08:00 AM |
Top Solution Authors
| User | Count |
|---|---|
| 3 | |
| 2 | |
| 1 | |
| 1 | |
| 1 |
