[x]
Posted via EE Mobile

Search, ask, and monitor your questions on the go with EE Mobile. Visit Experts Exchange from your mobile device and never be out of touch again.
Question
[x]
Attachment Details
[x]
The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

  • The Grade of the Solution
  • The Zone Rank of the Expert Providing the Solution
  • The Number of Author and Expert Comments
  • The Number of Experts Contributing
  • The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!
7.2

Proper QoS Settings On Cisco ASA 5505 For VoIP

Asked by artisit in Asterisk Open Source Telephony, Voice Over IP, Networking Hardware Firewalls

Tags: Cisco, Advanced Security Appliance, ASA 5505, QoS Settings

I have a T1 made available via an Adtran router.  In between my network and the Internet, I have a Cisco ASA 5505.  My network is converged providing both voice and data services.  My T1 is configured for all channels to provide data service.  Within my network, I have a Digium VoIP PBX appliance that provides phone services to my small office.  All VoIP service is provided via SIP trunking.

My problem is that I experience choppiness (packet loss, jitter) regularly.  I believe it is due to an improperly configured Voice policy.  Below, is my running configuration.

Can anyone please advise as to how to configure QoS properly for VoIP on a Cisco ASA 5505 using a T1 for both voice and data?  I am specifically interested to know if this is something policing might fix.  My guess is that the outside interface is connected to the Adtran router at a 100MB/s connection even though my outbound through put is limited to T1 speeds (1.5MB/s).  I have opened more than one TAC on this issue and it seems to be something the Cisco engineers can't get fixed.
1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
21:
22:
23:
24:
25:
26:
27:
28:
29:
30:
31:
32:
33:
34:
35:
36:
37:
38:
39:
40:
41:
42:
43:
44:
45:
46:
47:
48:
49:
50:
51:
52:
53:
54:
55:
56:
57:
58:
59:
60:
61:
62:
63:
64:
65:
66:
67:
68:
69:
70:
71:
72:
73:
74:
75:
76:
77:
78:
79:
80:
81:
82:
83:
84:
85:
86:
87:
88:
89:
90:
91:
92:
93:
94:
95:
96:
97:
98:
99:
100:
101:
102:
103:
104:
105:
106:
107:
108:
109:
110:
111:
112:
113:
114:
115:
116:
117:
118:
119:
120:
121:
122:
123:
124:
125:
126:
127:
128:
129:
130:
131:
132:
133:
134:
135:
136:
137:
138:
139:
140:
141:
142:
143:
144:
145:
146:
147:
148:
149:
150:
151:
152:
153:
154:
155:
156:
157:
158:
159:
160:
161:
162:
163:
164:
165:
166:
167:
168:
169:
170:
171:
172:
173:
174:
175:
176:
177:
178:
179:
180:
181:
182:
183:
184:
185:
186:
187:
188:
189:
190:
191:
192:
193:
194:
195:
196:
197:
198:
199:
200:
201:
202:
203:
204:
205:
206:
207:
208:
209:
210:
211:
212:
213:
214:
215:
216:
217:
218:
219:
220:
221:
222:
223:
224:
225:
226:
227:
228:
229:
230:
231:
232:
233:
234:
235:
236:
237:
238:
239:
240:
241:
242:
243:
244:
245:
246:
247:
248:
249:
250:
251:
252:
253:
254:
255:
256:
257:
258:
259:
260:
261:
262:
263:

: Saved
:
ASA Version 8.0(3) 
!
hostname hunterasa
domain-name huntercpa.com
enable password 1234 encrypted
names
name 64.18.0.0 McAfeeSMS
name 4.79.212.236 Bandwidth.com_0
name 216.82.224.202 Bandwidth.com_1
name 216.82.225.202 Bandwidth.com_2
name 70.46.40.237 Asterisk
name 70.46.40.235 GarciaWin2K3
name 70.46.40.236 ServerWin2K
!
interface Vlan1
 nameif inside
 security-level 100
 ip address 192.168.0.254 255.255.255.0 
 ospf cost 10
!
interface Vlan2
 nameif outside
 security-level 0
 ip address 70.46.40.234 255.255.255.248 
 ospf cost 10
!
interface Ethernet0/0
 switchport access vlan 2
!
interface Ethernet0/1
!
interface Ethernet0/2
!
interface Ethernet0/3
!
interface Ethernet0/4
!
interface Ethernet0/5
!
interface Ethernet0/6
!
interface Ethernet0/7
!
passwd 4567 encrypted
ftp mode passive
dns server-group DefaultDNS
 domain-name huntercpa.com
object-group service rdp tcp
 description remote desktop
 port-object eq 3389
object-group service Media_Group udp
 description Media_Group
 port-object range 10000 20000
object-group service SCP_Group1 tcp
 description SCP_Group1
 port-object range 10000 10050
object-group service SIP_Group1 udp
 description UDP_5059-5061
 port-object range 5059 5061
object-group service AsteriskRemoteManagement tcp
 description AsteriskRemoteManagement
 port-object eq www
 port-object eq https
 port-object eq ssh
access-list outside_access_in extended permit tcp any host ServerWin2K object-group rdp 
access-list outside_access_in extended permit tcp McAfeeSMS 255.255.240.0 any eq smtp 
access-list outside_access_in remark ServerRDP
access-list outside_access_in extended permit tcp any host ServerWin2K 
access-list outside_access_in remark GarciaGM
access-list outside_access_in extended permit tcp any host GarciaWin2K3 eq 5993 
access-list outside_access_in remark GarciaGM
access-list outside_access_in extended permit udp any host GarciaWin2K3 eq 5993 
access-list outside_access_in remark GarciaHTTP
access-list outside_access_in extended permit tcp any host GarciaWin2K3 eq www 
access-list outside_access_in remark GarciaHTTPS
access-list outside_access_in extended permit tcp any host GarciaWin2K3 eq https 
access-list outside_access_in remark All IP Traffic From Bandwidth.com
access-list outside_access_in extended permit ip host Bandwidth.com_0 host Asterisk 
access-list outside_access_in remark All IP Traffic From Bandwidth.com
access-list outside_access_in extended permit ip host Bandwidth.com_1 host Asterisk 
access-list outside_access_in remark All IP Traffic From Bandwidth.com
access-list outside_access_in extended permit ip host Bandwidth.com_2 host Asterisk 
access-list outside_access_in remark SIP Related Traffic
access-list outside_access_in extended permit udp any host Asterisk object-group SIP_Group1 
access-list outside_access_in remark SIP Related Traffic
access-list outside_access_in extended permit tcp any host Asterisk object-group SCP_Group1 
access-list outside_access_in remark SIP Related Traffic
access-list outside_access_in extended permit udp any host Asterisk object-group Media_Group 
access-list outside_access_in remark SIP Related Traffic
access-list outside_access_in extended permit tcp any host Asterisk object-group AsteriskRemoteManagement 
access-list outside_access_in extended permit icmp any any echo-reply 
access-list outside_access_in extended permit udp any host Asterisk inactive 
access-list outside_access_in extended permit tcp any host Asterisk eq sip 
access-list inside_nat0_outbound extended permit ip 192.168.0.0 255.255.255.0 192.168.1.0 255.255.255.0 
access-list inside_nat0_outbound extended permit ip any 192.168.101.0 255.255.255.0 
access-list inside_nat0_outbound extended permit ip 192.168.0.0 255.255.255.0 10.1.70.0 255.255.255.0 
access-list outside_1_cryptomap extended permit ip 192.168.0.0 255.255.255.0 192.168.1.0 255.255.255.0 
access-list outside_2_cryptomap extended permit ip 192.168.0.0 255.255.255.0 10.1.70.0 255.255.255.0 
access-list HunterVPN_splitTunnelAcl_1 remark outside access
access-list HunterVPN_splitTunnelAcl_1 standard permit 192.168.0.0 255.255.255.0 
pager lines 24
logging enable
logging monitor debugging
logging asdm informational
mtu inside 1500
mtu outside 1500
ip local pool VPN_Clients 192.168.101.1-192.168.101.254 mask 255.255.255.0
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-603.bin
no asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list inside_nat0_outbound
nat (inside) 1 0.0.0.0 0.0.0.0
static (inside,outside) Asterisk 192.168.0.15 netmask 255.255.255.255 
static (inside,outside) ServerWin2K 192.168.0.1 netmask 255.255.255.255 
static (inside,outside) GarciaWin2K3 192.168.0.2 netmask 255.255.255.255 
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 70.46.40.233 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 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout uauth 0:05:00 absolute
dynamic-access-policy-record DfltAccessPolicy
http server enable
http 70.145.190.131 255.255.255.255 outside
http 66.129.89.73 255.255.255.255 outside
http 66.129.89.68 255.255.255.255 outside
http 192.168.0.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set ESP-DES-MD5 esp-des esp-md5-hmac 
crypto ipsec transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac 
crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac 
crypto ipsec transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac 
crypto ipsec transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac 
crypto ipsec transform-set ESP-DES-SHA esp-des esp-sha-hmac 
crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac 
crypto ipsec transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac 
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac 
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac 
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set pfs 
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set transform-set ESP-AES-128-SHA ESP-AES-128-MD5 ESP-AES-192-SHA ESP-AES-192-MD5 ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA ESP-3DES-MD5 ESP-DES-SHA ESP-DES-MD5
crypto map outside_map 1 match address outside_1_cryptomap
crypto map outside_map 1 set peer 66.129.89.68 
crypto map outside_map 1 set transform-set ESP-3DES-SHA
crypto map outside_map 2 match address outside_2_cryptomap
crypto map outside_map 2 set peer 70.145.190.131 
crypto map outside_map 2 set transform-set ESP-3DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic SYSTEM_DEFAULT_CRYPTO_MAP
crypto map outside_map interface outside
crypto isakmp enable outside
crypto isakmp policy 10
 authentication pre-share
 encryption des
 hash md5
 group 2
 lifetime 86400
crypto isakmp policy 30
 authentication pre-share
 encryption 3des
 hash sha
 group 2
 lifetime 86400
crypto isakmp policy 50
 authentication pre-share
 encryption 3des
 hash md5
 group 2
 lifetime 86400
no crypto isakmp nat-traversal
telnet 0.0.0.0 0.0.0.0 inside
telnet timeout 5
ssh 192.168.0.2 255.255.255.255 inside
ssh 70.145.190.131 255.255.255.255 outside
ssh timeout 5
console timeout 0
dhcpd dns 192.168.0.2
dhcpd wins 192.168.0.2
dhcpd ping_timeout 750
dhcpd domain huntercpa.com
dhcpd auto_config outside
!
dhcpd address 192.168.0.90-192.168.0.200 inside
dhcpd enable inside
!
 
priority-queue outside
threat-detection basic-threat
threat-detection statistics access-list
tftp-server inside 192.168.0.2 TFTP-Root
group-policy HunterVPN internal
group-policy HunterVPN attributes
 wins-server value 192.168.0.2
 dns-server value 192.168.0.2
 vpn-tunnel-protocol IPSec 
 split-tunnel-policy tunnelspecified
 split-tunnel-network-list value HunterVPN_splitTunnelAcl_1
 default-domain value huntercpa.com
 address-pools value VPN_Clients
username carlin.boswell password fDbqYvMmYDZ3cKwS encrypted privilege 5
username barbara password xDBuUwNcjazyChBQ encrypted privilege 5
username david.webb password 2iAEb/yPmr74MSZM encrypted privilege 15
username jon.bajalia password n8ET2.HSTM/EQ6OG encrypted privilege 5
username david.hensley password F5CoCaPhAaQKUgiC encrypted privilege 15
username james.hurff password EG3my2OpbZvIcXmp encrypted privilege 15
username chris.russell password z6ym24QikeXE63Cn encrypted privilege 5
username angela.metheny password RLUa0tNmKVP5hwLW encrypted privilege 5
tunnel-group 66.129.89.68 type ipsec-l2l
tunnel-group 66.129.89.68 ipsec-attributes
 pre-shared-key *
tunnel-group HunterVPN type remote-access
tunnel-group HunterVPN general-attributes
 address-pool VPN_Clients
 default-group-policy HunterVPN
tunnel-group HunterVPN ipsec-attributes
 pre-shared-key *
tunnel-group 70.145.190.131 type ipsec-l2l
tunnel-group 70.145.190.131 ipsec-attributes
 pre-shared-key *
!
class-map Voice
 match dscp ef 
class-map inspection_default
 match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
 parameters
  message-length maximum 512
policy-map global_policy
 class inspection_default
  inspect dns preset_dns_map 
  inspect ftp 
  inspect h323 h225 
  inspect h323 ras 
  inspect rsh 
  inspect rtsp 
  inspect esmtp 
  inspect sqlnet 
  inspect skinny  
  inspect sunrpc 
  inspect xdmcp 
  inspect netbios 
  inspect tftp 
policy-map Voicepolicy
 class Voice
  priority
!
service-policy global_policy global
prompt hostname context 
Cryptochecksum:3d2f7005b421f049fef9d761fb8914d7
: end
asdm image disk0:/asdm-603.bin
asdm location McAfeeSMS 255.255.255.255 inside
asdm location Bandwidth.com_1 255.255.255.255 inside
asdm location Bandwidth.com_2 255.255.255.255 inside
asdm location 10.1.70.0 255.255.255.0 inside
no asdm history enable
 
Related Solutions
Keywords: Proper QoS Settings On Cisco ASA 5…
Title
1 Cisco ASA 5505 VPN w/ VOIP Qo…
2 Securing SIP
3 Asterisk PBX  how to fine tune / optim…
4 Using SIP and  VLANS with exisitng VPN
5 SIP phones and NAT translation issues
 
Loading Advertisement...
 
[+][-]08/14/08 07:28 AM, ID: 22230612Accepted Solution

View this solution now by starting your 30-day free trial. Setting up your free trial is quick, easy, and secure. We will return you to this solution, unlocked, when you're done.

About this solution

Zones: Asterisk Open Source Telephony, Voice Over IP, Networking Hardware Firewalls
Tags: Cisco, Advanced Security Appliance, ASA 5505, QoS Settings
Sign Up Now!
Solution Provided By: harbor235
Participating Experts: 1
Solution Grade: B
 
[+][-]08/13/08 12:27 PM, ID: 22224761Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]08/13/08 12:35 PM, ID: 22224825Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]08/14/08 06:41 AM, ID: 22230157Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]08/14/08 07:00 AM, ID: 22230331Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
 
Loading Advertisement...
20091111-EE-VQP-92 / EE_QW_2_20070628