11-16-2012 05:17 PM - edited 03-11-2019 05:24 PM
Dear All,
I have a VC system "Tandberg C60 Model", and ASA firewall. C60 unit is in the inside zone of the firewall and mapped to real IP, from the outside anyone can call me and make a video call and share his presentation "desktop" without any problem, and also when I make a call is works well, but the problem when trying to share my desktop to the other site, he didn't see the presentation and the call will disconnect after a few seconds.
Hint:
when the VC system put directly to the router with real IP it works well bidirectional.
ASA Config:
ASA Version 7.0(8)
!
hostname CRFW
domain-name CR.org
enable password ja7JlGww/OCQtJ0v encrypted
passwd zv/jqe4Rp2ry75// encrypted
names
dns-guard
!
interface Ethernet0/0
nameif outside
security-level 0
ip address 196.221.68.97 255.255.255.0
!
interface Ethernet0/1
nameif inside
security-level 100
ip address 192.168.10.65 255.255.255.0
!
interface Ethernet0/2
nameif DMZ
security-level 40
ip address 10.0.0.1 255.255.255.0
!
interface Management0/0
shutdown
no nameif
no security-level
no ip address
management-only
!
ftp mode passive
access-list vc_daks_acl extended permit tcp any host 196.221.68.100 eq https
access-list vc_daks_acl extended permit tcp any host 196.221.68.100 eq h323
access-list vc_daks_acl extended permit udp any host 196.221.68.100 eq 1719
access-list vc_daks_acl extended permit udp any host 196.221.68.100 range 2326 2485
access-list vc_daks_acl extended permit tcp any host 196.221.68.100 range 5555 5574
pager lines 24
logging enable
logging asdm informational
mtu outside 1500
mtu inside 1500
mtu DMZ 1500
icmp permit any echo-reply outside
asdm image disk0:/asdm-508.bin
no asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0
static (inside,outside) 196.221.68.100 192.168.10.30 netmask 255.255.255.255
access-group vc_daks_acl in interface outside
route outside 0.0.0.0 0.0.0.0 196.221.68.96 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00
timeout mgcp-pat 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
username admin password 78oT4ziTSBGKRwvH encrypted privilege 15
username shereif password biVxeeF8XD3bj8xW encrypted privilege 15
http server enable
http 192.168.10.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec security-association lifetime seconds 28800
crypto ipsec security-association lifetime kilobytes 4608000
telnet 192.168.10.0 255.255.255.0 inside
telnet timeout 15
ssh timeout 5
console timeout 0
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map global_policy
class inspection_default
inspect dns maximum-length 512
inspect ftp
inspect h323 h225
inspect h323 ras
inspect netbios
inspect rsh
inspect rtsp
inspect skinny
inspect esmtp
inspect sqlnet
inspect sunrpc
inspect tftp
inspect sip
inspect xdmcp
!
service-policy global_policy global
Cryptochecksum:877d1f83588a0db98a4e9db5eee70038
: end
Please, everyone help me to solve this issue...
Thanks
Omar Mahmoud
11-17-2012 02:32 AM
Hello Mahmoud,
Could you try to disable the h323 inspection as follows and give a try
configure terminal
policy-map global_policy
class inspection_default
no inspect h323 h225
no inspect h323 ras
exi
exi
clear local-host all
regards
Harish
11-20-2012 04:45 AM
Hi Harish,
I did what you say, but the problem now, I cannot be reached from the outside "could be called and hear tone only, and then the call will disconnect".
what i have to do?, please advice me...
Thanks
Omar Mahmoud
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