Cisco Firewall :: 3825 - ASA 5510 And Edge Router Not Altering SIP Packets
Oct 2, 2012
My SIP provider is not convinced that my ASA and Edge Router is not altering the SIP packets. On the ASA I've removed the inspect SIP, and H323, what else needs to be done to make the firewall not mess with the SIP Traffic.
Packets are flowing in/out.
access-list hbg-outside-198_access_in extended permit udp host <SIP HOST> object sfipoffice_o eq sip
access-list hbg-outside-198_access_in extended permit udp any object hbgipoffice_o gt 49152
access-list hbg-outside-198_access_in extended permit udp any object hbgipoffice_o lt 53246
Here are my Policy Maps.
policy-map type inspect dns preset_dns_map
parameters
message-length maximum 512
policy-map type inspect dns migrated_dns_map_1
parameters
message-length maximum client auto
[code]...
On the 3825 Its jsut a pretty simple config that jsut routes packets form one interface to another, all Public Addresses, so no NAT on it.
View 2 Replies
ADVERTISEMENT
Apr 9, 2011
How to configure an Asa that will have a default gateway to an edge router that will be doing PBR? We would like Internet surfing to go out one ISP while internally hosted services in the Asa DMZ would go through the other ISP. configuration examples for both the edge router and the Asa?
View 3 Replies
View Related
Dec 5, 2012
Our Cisco ASA 5510 running 8.4(4)1 just started dropping packets and our AnyConnect clients are seeing horrible performance. The system is extremely slow compared to just a couple days ago.Nothing has changed on the system. I can post the configs if needed.
firewall# sho int
Interface Ethernet0/0 "outside", is up, line protocol is up
Hardware is i82546GB rev03, BW 1000 Mbps, DLY 10 usec
Full-Duplex(Full-duplex), 1000 Mbps(1000 Mbps)
Input flow control is unsupported, output flow control is off
Description: == WAN Interface ==
[code]....
I have done a "sho vpn-sessiondb detail svc" and I can see the dropped packets of the individual users, but cannot see why the packets are still dropping.how I can correct this and restore speeds?
View 1 Replies
View Related
Mar 17, 2011
I have 2 ASA 5510 firewalls at 2 different sites. Both running on version 8.0.4. Users are using an Instant Messaging type of application provided by a local telco here which is able to send and receive SMS using SIP (from the packet capture that I've done).
When users use the IM in site A, they are able to send and receive text messages via the IM from behind the firewall. However, when the users are in site B, users are able to send out text messages but not able to receive them.
I noticed that when I remove "inspect sip" from site-B's global policy map, users from site-B can successfully receive text messages. I have confirmed that it is the firewall that drops the packets as I have captured the inside and outside interfaces of site-B's ASA and I can see the incoming sip "request: MESSAGE" packet on the outside interface but I do not see the packet exiting the inside interface.
I have cross check both firewall configurations, and I do not see anything suspicious commands relating to sip that might cause this issue. Is there any command to troubleshoot why the sip inspection is dropping the sip packets on site-B?
View 15 Replies
View Related
May 1, 2013
We have ASA 5520 firewall.For broadband Internet access, we have T1 Router(edge router provided by ISP) which provides public IP's 198.24.210.224 / 29. We have usable public IP's 198.24.210.226 - 198.24.210.230 with default gateway 198.24.210.225. We assigned 198.24.210.230 255.255.255.0 to the outside interface.
If we connect the ASA 5520 outside interface directly to T1 router, can all packets with destination addresses 198.24.210.224/29 reach the outside interface without using other device like another router or switches?I just assume that only packets with destination address 198.24.210.230(outside interface ip) can reach the outside interface from the edge router.Is it wrong assumption? If it is correct, then is there any way to route all packets with destination address 198.24.210.224/29 to the outside interface?
View 3 Replies
View Related
Feb 5, 2013
I have connected the input cable of router to LAN port instead of INTERNET port and i got internet (some time only). due to that I caught by the authority and they are saying that change of port was the problem. Already there was a problem to our server (might be hardware problem).
View 2 Replies
View Related
May 8, 2013
What is the best way to monitor an Internet Edge router from the Internal network behind the Firewall?We want to pull more information from the edge router like netflow. We can use SNMPv3 and ACLs to keep the router secure.
But I am looking for the best config to keep both the router and firewall as secure as possible while still allowing us to monitor performance and faults.I am running an ASA and a 2821.
View 2 Replies
View Related
Jun 17, 2012
I've been trying to configure a TP-Link L-WR740N to act as an access point using the instructions here as a guide. As stated in the guide, I've been changing the IP address of the TP-Link router to a new address that lies outwith the pool of available DHCP addresses in my combined modem/router but with less than resounding success. After rebooting the TP-Link router, I am unable to access the set-up interface - the newly allocated IP address doesn't work, neither does the original IP address work. What is happening here? If I change the IP address to one that lies within the DHCP pool and reboot, I can access it ok with the new address. However, that obviously clashes with the set-up instructions.
View 1 Replies
View Related
Nov 8, 2011
Used a pair of ASA 5520s in HA to firewall the internet edge and to firewall traffic between internal security zones such as web and application layers? If so, is this best done using different security levels or contexts?
I'm thinking of using a routed context for securing the internet edge and then using seperate contexts for the web and application networks. Contexts will route via a L3 switch.
View 3 Replies
View Related
Apr 17, 2012
I have a 5510 that has 2 site to site vpn's that aren't working. Phase 1 and 2 are up, but no data packets are being sent. This just started randomly 2 days ago after working for weeks.
View 6 Replies
View Related
Sep 3, 2012
Enabling IP Accounting or capture packets in Cisco ASA 5510 ( 8.2 ).
View 2 Replies
View Related
Sep 15, 2011
If my ISP brings ethernet into the building via duplex LC multimode fiber can I use the ASA5550 as the first device from the WAN or do I need some type of router for this? I realize I'll need an SFP to get to duplex LC, but I'm not sure if I need a router, or if the ASA can function as a router for this application.
View 3 Replies
View Related
Dec 18, 2011
If my ISP brings ethernet into the building via duplex LC multimode fiber can I use the ASA5550 as the first device from the WAN or do I need some type of router for this? I realize I'll need an SFP to get to duplex LC, but I'm not sure if I need a router, or if the ASA can function as a router for this application.
View 9 Replies
View Related
Aug 15, 2011
I try to setup a ASA5510, but without success. Actually, I have Cisco1800(192.168.96.1/21) from my ISP connected to a Cisco 3825 (via port with IP 192.168.96.2) all is working good. Now I want to insert a asa firewall between ISP router and 3825.
For that, I tried a more simple config :
ISProuter (192.168.96.1/21) ---- ASA outside port(192.168.96.2/255.255.255.248) ASA INSIDE port (192.168.100.1/255.255.255.0) --- a pc with IP 192.168.100.2, netsmask 255.255.255.0, gateway 192.168.100.1
From my ASA, I can ping 192.168.96.1. but a "ping INSIDE 192.168.96.1" fail
from py pc, can ping 192.168.100.1, but not 192.168.96.1
Here, my ASA config :
ASA Version 7.0(8)host name cisco asa
enable password 8Ry2YjIyt7RRXU24 encrypted
password 2KFQnbNIdI.2KYOU encrypted
names dns-guard
!
interface Ethernet0/0
shutdown
no nameif
no security-level
no ip address
[code]....
View 1 Replies
View Related
Dec 22, 2011
We are replacing a DS3 Internet connection with a 100 Mbps fastE connection from a Tier 1 Provider. I currently have a Cisco 7204VXR with 512 Mb DRAM and 128 Mb of Flash and two 10/100 ports that is connected to the DS3. I also have a 3845 with 1 Gb of DRAM and 256 Mb of Flash with two 10/100/1000 ports available.
We are currently running BGP, below is the summary
BGP table version is 88880414, main routing table version 88880414
379041 network entries using 44347797 bytes of memory
379043 path entries using 19710236 bytes of memory(code)
View 4 Replies
View Related
Aug 21, 2011
Apart from the ability to participate in BGP, is there any reason you should use a router on an internet edge rather than the SG-300 switch?
View 4 Replies
View Related
Mar 6, 2013
My company has purchased a second ASA for fail over reasons and I'm needing to attach it to my core router (ASR 1001). Currently I'm running the connection between my ASA and my Core as a /19 ie. ASA-10.10.10.2/19 -- ASR-10.10.10.1/19. I know the 2nd interface on the ASR will need to be on a different network segment then the first connection (10.10.10.1/19). What would be the best way to segment this out with out breaking up my /19?
Run /30 segments for each interface? Use a VLan ?
I don't want to use up my Internet rout able IP's on /30 segments. Attached diagram.
View 1 Replies
View Related
Jul 26, 2012
Any router (I'm considering ASR 1002 with 10GE SPAs) that can support the following:
-10GE interfaces
-can handle 1.5Gbps but scales up to 5-6Gbps different seasons
-take on full internet routes from 2-3 providers
-will live on the internet edge
View 7 Replies
View Related
Nov 27, 2011
I have a cisco 3560 switch set up as my edge router. It is working as my external demarc switch and edge router. It is sitting between the ISP's switch and my ASA firewall. It's a very basic configuration with port 1 set up with a fixed ip and switchport turned off which is connected to the ISP switch. VLAN2 is configured with an IP address and 3 ports, two of which go to different firewalls.
I found that I cannot ping a specific address from the inside interface (VLAN2), but I can from the outside interface Gig0/1. I have a few deny commands in an access list, but they don't apply to the network i'm trying to access, and I haven't had any other inaccessible networks otherwise.
Here's my config minus passwords and full IP ranges. There are two ranges, one with xxx and one with xx. The xxx is set as secondary, but is the one we really use.
Current configuration : 4808 bytes!version 12.2no service padservice timestamps debug uptimeservice timestamps log uptimeservice password-encryption!hostname my-rtr-ext!boot-start-markerboot-end-marker!enable secret 5 !
!!no aaa new-modelsystem mtu routing 1500ip routing!
[Code] ............
View 4 Replies
View Related
Apr 22, 2013
Region : Others
Model : TL-MR3420
Hardware Version : V2
Firmware Version :
ISP : YU KENYA
most service providers in our country dont have 3G or 4G support,but all the same i bought an MR3420 router in the hopes that since my modem is listed,it would still connect even if on an EDGE/2G network like YU-Kenya.But this is not the case,the router does not recognize the modem i.e it says the modem is unplugged but when i look at the logs,it indicated it detected the modem but LTE was set to zero. providing a modem bin file for compatibility under EDGE/2G connection otherwise my router will be of no use to me.
View 2 Replies
View Related
Dec 30, 2012
Region : Poland
Model : TL-MR3220
Hardware Version : V1
Firmware Version :
ISP : Bite
Router TL-MR3220 works well on 3G network, but is not works 2G (edge) network. 3G network is not suported in my location, only 2G. My modem is Huawei E 173. In location 2G network Router show: 3G/4G USB Modem: Unplugged.
View 3 Replies
View Related
May 13, 2012
I need to make some changes on our network. We currently have two sites 150 miles apart we join both by way of fiber and on each side we have Cisco 3750 stack switches, configure trunking for all V lans on one port in site one then through the the long haul fiber to site two with site one using 10.1.1.30 and site two using 10.1.1.40 as their default gateway, with static routing all V lan sub nets to the other sites default gateway life is good.
My question - seeing how we have sites using the same sub net 10.1.1.x to trunk all data to each site through switches; we need to now change the network and add each site to the MPLS network, site one switch 1 IP address 10.1.1.30 going to MPLS router one with FA0/0/0 using IP 10.1.1.31, site two having switch 1 IP address 10.1.1.40 going to MPLS router one with FA0/0/0 using 10.1.1.41. I need to know will this work.
We have the same sub net in each site 10.1.1.x to the MPLS routers then the external router interface connecting each site to local switches, will this cause any problems by using the same local sub net for each site?
View 1 Replies
View Related
Apr 30, 2013
I am having an issue where the ASA is dropping packets on the vlan interfaces. I have it as a dedicated router/firewall for a 100mb connection .
Vlan1 is the internal networkVlan2 is the network to cable modem
Eth 0/1 is connected to a 2960G switch with hard coded 100mb Full Duplex at each end, this is the inside interface. Eth 0/0 is the connection to the cable modem, this is the outside interface, set at auto at both ends.
Im getting on the vlans eg. 51253 packets dropped however network traffic isnt impacted and everything runs fine, as well as 46532 switch ingress policy drops.
Example;
ciscoasa# sh int vlan1Interface Vlan1 "inside", is up, line protocol is up Hardware is EtherSVI, BW 100 Mbps, DLY 100 usec MAC address 70ca.9b36.ab80, MTU 1500 IP address 10.x.x.x, subnet mask 255.255.255.0 Traffic Statistics for "inside": 43250588
[Code]......
View 1 Replies
View Related
Feb 28, 2012
We have a setup with a MS-TMG - ASA (8.2.4(4) in routing mode) - (internal) Router - FWSM - Router - Exchange with NLB. We have now the problem that IMAPS is not really working through this setup. It works from internal (without ASA and TMG inbetween), but not reliably through the internet. There is a rule on the ASA which permits the ports from the TMG to the Exchange NLB address.We opened a case with Microsoft and they told us that not all tcp-syn packets are received by the Exchange server which were sent by the TMG.Thus I sniffed on the ASA with a packet capture and indeed, a lot of syn packets were on the interface to the TMG, but not anymore on the interface to the internal router.This ASA also filters all other internet<->company traffic, so there's a lot of stuff running.
Maybe it's dropped in the ASP, or is the capture maybe not valid?Here the show asp drop:
ASA01-Internet# sh asp drop
Frame drop: Invalid TCP Length (invalid-tcp-hdr-length) 1 Reverse-path verify failed (rpf-violated) 319 Flow is denied by configured rule (acl-drop) 477077 First TCP packet not SYN (tcp-not-syn) 10212 TCP data send after FIN (tcp-data-past-fin) 41 TCP failed 3 way handshake (tcp-3whs-failed) 824 TCP RST/FIN out of order (tcp-rstfin-ooo) 1419 TCP SEQ in SYN/SYNACK invalid (tcp-seq-syn-diff) 6 TCP SYNACK on established conn (tcp-synack-ooo) 1 TCP packet SEQ past window (tcp-seq-past-win) 821 TCP invalid ACK
[code]....
View 9 Replies
View Related
Sep 26, 2012
I am trying to configure my ASA 5545 firewall in area 0 but when I do so, the neighbor relationship never establishes. A debug on OSPF gives only one response: [code] Why the ASA is ignoring the input packets?
View 4 Replies
View Related
Aug 21, 2012
I have a Cisco 871 router that used to have Access list based security. now I am trying the ZBFW for the first time. I thought I had a pretty good program until I found all my traffic was getting dropped. This is my first stab at ZBFWs and I am a bit confused esp with the default class part.
The router is for my house and thus also has to have priority for gaming. I will add the gaming and voice QOS once I get it working,
Guest VLAN has access to 2 IP's in Data for printing. Cisco871#sh run
Building configuration...
Current configuration : 8005 bytes
!
version 12.4
no service pad
[Code].....
View 1 Replies
View Related
Jun 9, 2013
I happen to noticed the FWSM was dropping packets at about 387 packets every 5 minutes. My outside FWSM is WAN facing and has a 1gig link (35% utilized) my inside facing has about 100 downstream switches to the closets. I do not see my 6509's back plane is being over utilized and my understanding of the FWSM show be go for 5 gig so it isn't oversubscribe. Why i am seeing packets dropped?
[Code] ......
View 2 Replies
View Related
Mar 13, 2013
My config:
Windows 7 host
MS Loopback Adapter with ICS
GNS3
ASA 8.42 with ASDM 6.4
Vmware Workstation 7 with Windows XP SP3 vm
All are working like a charm, from my virtual XP machine I can ping every site, e.g. www.google.com which replies nice with it's ip-address.
However, I cannot reach ANY website
When I connect through a Cisco 3700 router the webbrowser works perfect, so it must be something in the ASA configuration (I presume )
I've tried about all possible Access Rules, but still nothing.
View 13 Replies
View Related
Sep 25, 2012
We'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 Related
May 23, 2011
I am attempting to FTP to a remote site through a IPSEC tunnel.When I am transfering large files the ASA5540 is showing syslog errors stating "connection timeout". What I think is happening is after about 1 hour the firewall is closing the connection control port for the FTP session and neither end is notified so eventually the transfer is stopped.What do I need to modify in the FW to accommodate these larger files?
View 1 Replies
View Related
Jan 3, 2012
I would like to know if I can reset the TTL value for all IP packets to 64 as they exit my network through an ASA5505 to the outside network. Can this be done on a 5505?
View 1 Replies
View Related
Feb 26, 2011
Does the FWSM v 4.1.3 is capable to forward return packets to the MAC address that sent them to it first?
View 6 Replies
View Related
Apr 17, 2012
We have an ASA5520 running ver 7.0(8), nat-control is disabled. On the "outside" interface we have a closed network which is publicly addressed i.e. no access to Internet. We also have two Vlan interfaces on a trunk connection i.e. "inside" interface (Vlan7) and "dmz" interface (Vlan802). Traffic from the "outside" to "inside" is statically NAT'd such that the public IP is translated to a private IP when accessing the "inside" interface. However, our OSS servers on the "dmz" interface need to be able to receive packets from the public IP addresses on the "outside" . All is okay with the outside to inside traffic and traffic initiated from the OSS servers on the "dmz" to the outside works okay (snmp gets etc) i.e. the servers receive reply packets from the public addresses of the outside devices.
However, traffic that originates on the "outside" interface (snmp traps etc) which is destined for the "dmz" is actually being routed to the "inside" interface and therefore the public source address is being NAT'd by the static NAT command. The access-list "in_on_outside" has relevant entries to allow connectivity from outside to dmz, we have tried a static nat command (outside, dmz) to maintain the public addressing but this made no difference and also a nat exempt. With ########nat-control disabled - do I still need a translation or NAT exempt for the "outside" <> "dmz" traffic flow, if so how should this look ?
View 11 Replies
View Related
