Cisco Firewall :: Allowing IPv6 Tunnel Broker To Passthrough ASA 2960
Jan 17, 2012I have switch cisco 2960 ,When you boot it displays the message that is unknown for me.
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IPv6 Tunnel Broker Service Behind Cisco PIX 506e
Feb 5, 2011So I have a Cisco PIX 506e that I've modified a bit, but am quite happy w/ when it comes to performance and configuration (I can actually set up the VPN server w/o too much thought.) I also have a Mikrotik Routerboard 750, I'm no longer using it as my router due to a few config issues I had plus the fact I had to hard code my internet gateway's arp address into the device due to some issues.
What I am wanting to do, which I'm sure is possible and easily accomplished (I just don't have the time right now to try it) is set the routerboard up behind my pix and have it function as an ipv6 router, while the pix handles my ipv4 duties. I've already set up the routerboard w/ an ipv6 tunnel broker when I had it running as my router, I am just curious if it will work in a similar fashion when configured behind an ipv4 device.
Cisco Firewall :: 881 Router - IOS ZBF Not Allowing IPv6
Oct 4, 2011I am trying to configure Zone Based Firewall (IOS 15.2T) on Cisco 881 router for IPv6. Current setup is simple:
Zone:
LAN --> WAN zone security LAN
zone security WAN
!
class-map type inspect match-any Internet-cmap
match protocol dns
match protocol http
match protocol https
[ code ] ........
Current configuration behaves as expected for IPv4, but blocks all IPv6 traffic. If zone-security is removed from WAN interface IPv6 works normally (connected to Internet). As soon as zone-security is enabled on WAN interface all IPV6 traffic is discarded when connecting to Internet from local LAN.
Error messages on console: Half-open Sessions source destination tcp SIS_OPENING/TCP_SYNSENT
Are there any special settings for ZBF which should be turned on for IPv6 protocol?
Cisco :: Can't Generate Pre-shared Key For Ipv6 Tunnel
Jan 18, 2013I'm playing with ipv6 and trying to get a tunnel between two sites working (basically following this example url...
View 6 Replies View RelatedCisco :: 3560 - Missing IPv6 Tunnel Command?
Sep 17, 2011I've finally got my 3560 switch IPv6 capable (IP Services IOS), but I've stumbled upon something strange: I can configure a tunnel interface, but I can't put the tunnel in ipv6ip mode. The command is missing. I can choose GRE, IP in IP, and a bunch of other things, but no ipv6ip. I'm a bit desperate here and probably I am going to have to live with it, but just in case? I need the IPv6 tunnel for an uplink to a tunnel broker which only supports this type of tunnel, and I'm surprised this is missing.
View 4 Replies View RelatedCisco Switching/Routing :: 2960 Switch Is Supportive To IPv6?
Nov 28, 2012I need to know the 172cisco 1 router support to IPv6 & it support to IPv6 then which IOS is required for it.Also I need to know the cisco 2960 switch is support to IPv6?
View 3 Replies View RelatedCisco Switching/Routing :: 2960 And 4510 IPv6 Support
Mar 2, 2013I have cisco 2960 and Catlyst 4510 switches now we are planning to implement IPV6.
i have the fallowing IOS on my switches.
C2960-lanbasek9-mz.122-50.se5
Cat4500e-entservicesk9-mz.122-54.sg1.bin
The above ios will support for IPV6 or I have to purchase new IOS, which version will support.
Cisco Firewall :: Port Passthrough On 5520?
Jan 13, 2012In a cisco firewall 5520 how could you take a public wan connection and pass it to another firewall behind the 5520 without using nat. How could you put a single port on the 5520 into transparent or passthrough much like you can on a broadband modem?
View 3 Replies View RelatedCisco WAN :: Does Nexus 7000 Support Ipv6 6to4 Tunnel
Nov 23, 2011Does Nexus 7000 support ipv6 6to4 tunnel?
View 3 Replies View RelatedCisco Switching/Routing :: IPv6 Filtering / Policing On 2960 Switch?
Jan 3, 2012Trying to control capacity utilization for guest users connecting to a 2960 switch. No problem for IPv4 users, but IPv6 is giving me fits. What I've found out by trial and error so far implies that there is just enough IPv6 smarts in a WS-C2960-24TT-L running c2960-lanbasek9-mz.150-1.SE to make it impossible to control IPv6 traffic. Blocking IPv6 would be sufficient short term, but MAC filtering on type 0x86DD does not appear to work either. Here are the results I've gotten so far:
What "works":
* Protocol ipv6 or an IPv6 ACL in a class map.
* Using a class map referencing ipv6 protocol or an ipv6 ACL in a policy map.
* IPv4 inbound filters and policing.
* Blocking of IPv4 traffic by a MAC ACL blocking type 0x0800 (IPv4) - note that the docs explicitly state that MAC filters do NOT filter IP traffic, except for on this box on this release they do.
What does not work:
* Applying a policy map referencing a class map referencing protocol ipv6 or an IPv6 ACL to an interface. The service policy is accepted by the parser, but is not inserted into the running configuration.
* "class-default" in a policy map only matches IPv4 traffic, not all other traffic.
* Blocking of IPv6 traffic by a MAC ACL blocking type 0X86DD. No problem applying the access-group to the interface, it just doesn't do anything.
I am aware that this box is not supposed to support IPv6 other than for multicast, but as implemented, this is a hole an abuser could drive a MAC truck through.
My questions:
Is this situation unique to this particular 2960 switch or SW release (I also tried 12.2(58)SE2) or does it afflict all 2960's running LANbase?
Assuming the answers to the first two question are negative, what is the minimum requirement to get working IPv6 policing in an edge switch?
Cisco Firewall :: Setup Of IPSec Passthrough On ASA 5520
Mar 28, 2012I am working on IPSec Passthrough on an ASA 5520, with version 8.3, and ASDM 6.3. Currently I have a requirement for users in my internal network (10.10.249.128 / 25) to be able to connect to external IPSec VPN servers.
So I created a network object with 10.10.249.128 / 25, and used dynamic PAT to translate the source ip address to the external internet facing outside interface:
I then added the following rules on the inside-in ACL: However troubleshooting shows that isakmp is passing through the firewall, but esp and ah is not.
For isakmp:
For ESP:Seems like the nat rule is drawing my ESP traffic,
D-Link DIR-615 :: Setup IPv6 In IPv4 Tunnel With Tunnerbroker Service
Mar 24, 2013Recently I wanted to setup IPv6 for my home network. I signed up for tunnelbroker.net service and was provided with IPs. Then I configured the IP address in my DIR-615. But It's not working..
Screenshot of IPv6 config (router) : Screenshot of my Win 8 network Config : I also tested at [URL] but failed...
D-Link DIR-825 :: Firmware 2.05NA - How To Get IPv6 In IPv4 Tunnel Working
Jun 9, 2011I have a Dlink DIR-825 B1 with firmware 2.05NA. I recently reset it to factory defaults to make sure I didn't misconfigure something.
I have been struggling to get a IPv6 in IPv4 tunnel working with tunnelbroker.net. I think the issue is a problem with the router itself and i'm not sure how to get it fixed.
All of my machines were getting IPv6 addresses (both windows, mac, linux) but none of them seemed to work. All I was able to do was ping the gateway itself using the local lan address. In each case they were missing a default IPv6 route. If I added a default route then it would work.
I started looking at the packets using a network sniffer and the Router Advertisements all had a Router lifetime value of "0" which is RFC4816 speak for "don't use this router as the default router". So Windows/Linux is exactly right by not setting a default route.
The strange thing was that when I reboot the router I would briefly get a router advertisement with a lifetime of 1800s, the corrert prefix and dns server but then another router advertisement would come along 5 seconds later with a router advertisement of 0.
I have TCP' Other observations
... using 6to4 I would get working IPv6 address. The difference again seemed to be the Router Lifetime. But I want to use a permanent tunnel. I have found 6to4 unreliable.
... the router never responds to router solicitations. It only sends a router advertisement when it wants to.
... the router never responds to DHCPv6 when that is configured.
Linksys Wireless Router :: EA3500 IPV6 Tunnel Resets To Automatic
Jan 27, 2013I have to go back into settings and deactivate the IPV6 tunnel daily to keep access to youtube. My provider does not support IPV6. Saving changes has no effectIs there a way to ensure that the IPV6 tunnel remains deactivated?I have firmware version 1.0.30 build 126544 2011-12-24. Firmware update function says I got the latest version.
View 5 Replies View RelatedLinksys Wireless Router :: Setting Up EA4500 SixXS IPV6 Tunnel
Sep 18, 2012Need a guide to setting the Ipv6 Tunnel from SixXS On the cisco connect cloud?
View 2 Replies View RelatedLinksys Wireless Router :: E4200 Cannot Ping Addresses Of IPv6 Tunnel Ends
Nov 21, 2011i have my Cisco E4200 set up with a 6rd tunnel. the tunnel seems to work fine for the most part. i can ping ipv6.google.com and get a response.however, i cannot ping the addresses of the IPv6 Tunnel ends from within my network. If i run a ping from outside the network, i can ping the IPv6 address of the server end, however, i cannot ping the E4200's end of the tunnel. is there a specific option that needs to be set? i have allowed ping so that my IPv4 address is pingable, am i missing something for IPv6?
View 7 Replies View RelatedLinksys Cable / DSL :: WAG320NVPN Passthrough Enabled / No Port Forwarding Set Up / Firewall Disabled
Aug 23, 2011Using a Mac running Mac OS X 10.6.8 with VPN Tracker 6.3.0.Before switching to the WAG320N I had no issues with my IPSEC VPN client. After the switch it consistently fails in Phase 1 negotiation.In the log file of the gateway I only notice: Mon, 2011-08-22 07:47:31 - [Outgoing] UDP Packet - 192.168.1.100:500 --> IP.ADDRESS.VPN.GATEWAY:500.The software itself complains about timeouts while contacting the remote gateway.VPN pass through is enabled, no port forwarding is set up, firewall is disabled.
View 6 Replies View RelatedCisco Firewall :: Allowing Netbios 137 / 138 Through ASA?
Sep 10, 2012I've recently had to move an AS400 system behind an internal ASA firewall and now users are unable to browse to it.The ASA is running Version 8.2(5)? I get these messages: Sep 11 2012 17:09:59: %ASA-7-710005: UDP request discarded from 172.19.241.35/137 to outside:172.19.241.255/137?Is there a way to enable these ports without enabling NAT?No VPN's involved, just an inside and outside eth interfaces?
View 12 Replies View RelatedCisco VPN :: 880 / 1800 / 2960 - DHCP Relay Through IPSEC VPN Tunnel
Mar 11, 2011Here is the high-level question, please only respond if you have a conclusive answer with documentation to back it up. It seems simple, but all my research on forums and things have been confusing and conflicting.
When "ip helper-address" is used to enable the dhcp-relay function, will the DHCP packets get relayed through the VPN tunnel (if thats where the DHCP server is?) This question applies to Cisco IOS Routers and VPN appliances which have a Site-to-Site IPSEC VPN Tunnel to a place that hosts a DHCP server.
I'm using the Cisco 880 and 1800 series routers. I've already got DHCP relaying through IPSEC tunnels, but so far I've only set it up where my 2960 switch relays the DHCP messages to the VPN router on site (which is a separate device). I want to know if the router can pickup and relay through it's own tunnel natively.
Cisco Firewall :: ASA5520 Not Allowing Traceroute
Oct 31, 2011I've got an annoying problem with my ASA 5520.I have traffic going from the inside interface (security level 100) to the outside interface (security level 0) with a global PAT applied to the outside interface address for all inside traffic - and I can't seem to traceroute through the firewall.The ruleset is simple - basically, allow any IP from inside to outside. The NAT is simple - PAT all traffic unless exempted to the IP address of the outside interface.If I do the trace from my internet edge router it works fine - so I know it's not soemthing my uplinks are filtering - but if I do it through the firewall, I get perfect responses until the hop where it hits the firewall interface - then nothing.Is there something I am missing that I need to do to allow traceroute to just work with all the rest of the traffic?
View 2 Replies View RelatedCisco Firewall :: 7100 Allowing NAT / PAT From Router Through ASA
Mar 17, 2013I have a 7100 router that has some servers behind it. I need to translate each server to a public IP. The only thing is that between the outside world and the router is an ASA. We have a small data center where the ASA is connected to a core switch on the inside and the ISP on the outside. How would I do the NAT/PAT translations on the 7100 and then have them pass through the ASA? for example:
View 6 Replies View RelatedCisco Firewall :: Allowing FTPS Access In ASA5510
Apr 13, 2012We had an ASA 5510 as a firewall in our environment, and there is a requirement to access an ftps server from our location. Currently from the server location they configured everything by allowing our public ip to their server and gave the following details to access ftp.Please suggest which traffic needs to be allowed in our ASA to access the ftp server address as mentioned above. From my initial analysis, it's found that 989 port is also enabled for the access, but that was not mentioned by them.
View 1 Replies View RelatedCisco Firewall :: Allowing Traffic From Inside To Outside ASA5505 7.2(3)
May 15, 2012Let me start by saying that I'm just starting to study for CCNA, so the ASA seems to be a bit above me yet. The ASA's we are using is for VPN to our corporate office and only allowing access to our Citrix environment, so no direct internet allowed. We have a person who works in the remote office who has need for a caption telephone that requires direct access to the internet. The phone only supports DHCP, and getting the ASA to do an ARP reservations is proving difficult. For now I wrote an access list to allow it's DHCP address out but it still isn't working. The access list I wrote is:
access-list 101 extended permit ip host xxx.xxx.xxx.124 any log
access-list 101 extended permit ip any any
access-group 101 out interface outside
When I do a show access-list I'm seeing that traffic is hitting the access list as the hit counter has increased. When I do a show conn I'm seeing one of the IP's that the phone should have access to, however the flags are: saA, so I'm assuming they are not getting a response. According to the manufacturer, only outbound connections are needed, no incoming ports required. All traffic is TCP.
Cisco Firewall :: ASA 5505 - Allowing Multiple Networks On DMZ?
May 22, 2011I have 3 networks coming on DMZ (VPN) interface. Only one network is able to ping the DMZ interface. See below networks coming i on the DMZ.
10.132.24.0/2410.132.25.0/2410.132.26.0/24 Only the 10.132.26.0/24 netork works as it is in the same range as the DMZ interface.
allowing the other two networks to communicate. I've attched the diagram and configs for your perusal.
Cisco Firewall :: ASA 5505 Not Allowing Incoming Traffic
Mar 15, 2012I am trying to switch out a cisco pix 501 firewall with a cisco ASA 5505 firewall. I am not very familiar with all of the commands for the firewalls and have always relied on a standard command line script that I use when building a new one. Unfortunately, my script is not working with the 5505. What I am doing wrong with the following script? I've masked public IP info with xxx.xxx.xxx and I run it right after restoring the firewall to the factory defaults. I am able to get out to the internet if I browse directly from one of the servers, but cannot access a web page when trying to browse to it from an outside network. [code]
View 7 Replies View RelatedCisco Firewall :: ASA5520 Allowing / Blocking Skype
Sep 17, 2012I have the following: redundant ASA5520s on v8.2(1)proxy server/web filter for blocking access to websites for staff/studentsusers who want to use SkypeCisco Catalyst 4507 corea dozen VLANs for staff/student/WiFi etcCisco core policy that routes 80/443 to transparent proxy on a WiFi VLAN Windows desktops have direct proxy settings in IE .Pretty much all outbound ports are closed with 80/443 and a handful of specifics for various things open. Because of this Skype attempts to use 80/443 which are sent to the proxy server but bnecause they're not HTTP/HTTPS they cannot be understood. Skype attitude is to open 1024-65535 which is just plain stupid!
There's no way to specify which port(s) Skype uses for outbound. I tried opening 33000-33099 which worked perfectly for 2-3 devices (Win laptop, iPad) but others failed all the time.I've seen people mention using an AIP-SSM module in the ASA for blocking Skype (and other things eg torrents). Is it possible to use this module to allow Skype eg on ports 1024-65535 whilst blocking any other application from using those ports?
Cisco Firewall :: 2811 Not Allowing ICMP To PBX Through Same Interface
May 31, 2013Attached is our network diagram showing the details of our remote office and the corporate side which are connected via private fiber. The workstation (10.10.102.84) can ping the 10.20.0.31 IP address of the PBX but not the .30 address and I know if we can’t ping it we can’t remotely manage it. The 2811 router, ASA 5510 and the 6509-E can ping both IP addresses on the PBX. The ASA logs the error "Denied ICMP type=0, from laddr 10.20.0.30 on interface inside to 10.10.102.84: no matching session" when the workstation pings the .30 address.
We changed the default gateway of the PBX from 10.20.0.2 to 10.20.0.1 (2811 router) and we were able to ping both IP addresses from the workstation but the SIP trunks from the Internet stopped working (they NAT to the .30 address). Because calls may be forwarded from the PBX to the corporate network (via IP phones) we will eventually need to change the default gateway to10.20.0.1 and still need the Internet SIP trunks.
My two questions are, how do we resolve the issue of pinging the .30 address from the workstation and then when the time comes how do we resolve the issue with the SIP traffic reaching the .30 address when we change the default GW of the PBX to the 10.20.0.1 address of the 2811 router.
Cisco Firewall :: ASA 5550 - Acl Allowing Guest Access
Jan 26, 2012I have an ASA 5550 at our main site with an external ethernet interface to our ISP for internet access. I would like to allow 10.100.41.x/24 http / https access but block this network's access to all other internal networks including 172.17.x.x,, 10.100.1 - 40.x, and others. I'm having trouble identifying what IP address to use as the desitination for the permit rule for access to the internet. The rule that comes after the permit is to deny 10.100.41.x/24 access to internal network addresses.
View 1 Replies View RelatedCisco Firewall :: Allowing Multicast Traffic To Pass Through ASA5510
Mar 1, 2011I ' m not able to configure the asa 5510 to allow the multicast traffic to pass through ASA.The multicast traffic have to pass from inside interface to outside interface.Can I configure the multicast traffic to pass through asa with a static nat ?
View 1 Replies View RelatedCisco Firewall :: PIX-525 Only Allowing 1020 Maximum Size Packets Through
Sep 25, 2012We've had this firewall in place for years, and there haven't been changes to it in the past few months. Last week, however, we started having problems accessing one of our networks through the PIX, and after working with Microsoft, we determined it was an MTU issue. The maximum sized packet to the PIX and through the PIX is 1020 bytes, and it doesn't matter if the packets are sourced from a server or the PIX itself. From the server, we can ping 1500 byte packets to the core switch with no issues. All interfaces are set for 1500 byte.
View 1 Replies View RelatedCisco Firewall :: ASA 5510 Allowing ICMP Unreachable On Outside Interface
Oct 25, 2011I am having some issues with my ASA 5510 (running ASA 8.2) dropping ICMP unreachable-fragmentation-required-but-df-bit-set type messages coming in on the outside interface. I have the following entry in the ACL for the outside interface:access-list outside_acl extended permit icmp any interface outside and there are no other entries in that list that should take precedence and drop the packet. Pings from outside to the ASA work when this ACE is present and do no when it is absent so it is clearly taking effect. I see the following entries in the debug log when sending a large non-fragmentable packet (that would cause an intermediate router to send back this ICMP response) out to the internet through the ASa,As far as I can tell I am not running ICMP inspection; I don't want it to do any stateful magic here since the outgoing traffic would have been ordinary data from another protocol and would not have caused an outgoing ICMP connection to be built to match against.
View 12 Replies View RelatedCisco Firewall :: ASA 5505 Allowing Traffic Between Two Internal Networks
Aug 30, 2011I'm usually not working with this product, but this is what I'm trying to do.I have 2 internal networks setup on our Cisco ASA 5505 firewall. (not done by me, I'm a new to this product)I'm trying to access a server on one network from a PC located on the other internal network. (preferable through the web gui)When I try "Packet Tracer" from interface "Trust4" it fails on the NAT phase.(Source ip: 10.0.4.99, Destination ip: 10.0.6.99)
When I check the NAT rule, it says:
Type Source Interface AddressDynamic any outside outside.
Cisco Firewall :: Allowing Internet Access Only For Specific Computers On PIX 501?
Jan 8, 2012I'm a college student working on a lab involving a Cisco PIX 501 Firewall.
My project involves 1 computer and a firewall. My goal is to use the firewall to allow access to the internet for that computer which uses a static IP 192.168.1.5 and ONLY for that IP address. The firewall is connected to the internet.
I have the computer hooked up to the firewall with the serial and using hyper terminal to enter commands. I think I need to use access lists in order to deny traffic on those ports for those particular hosts. I can't figure out exactly how I need to set it up.
What I need to do is permit internet access for 192.168.1.5 alone. Any other IP should not be able to access the internet.
I tried:
access-list 1 permit tcp host 192.168.1.5 any eq 80
access-group 1 in interface inside
I cannot access the internet using the computer with 192.168.1.5. The goal is to be able to access with that IP and no other.