Cisco 7604 Configuration Guide - Page 503
SIP Sample Configuration
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Chapter 22 Applying Application Layer Protocol Inspection SIP Inspection The first session, with the call-id [email protected], is in the state Call Init, which means the session is still in call setup. Call setup is not complete until a final response to the call has been received. For instance, the caller has already sent the INVITE, and maybe received a 100 Response, but has not yet seen the 200 OK, so the call setup is not complete yet. Any non-1xx response message is considered a final response. This session has been idle for 1 second. The second session is in the state Active, in which call setup is complete and the endpoints are exchanging media. This session has been idle for 6 seconds. SIP Sample Configuration Figure 22-17 shows a sample configuration for SIP inspection: Figure 22-17 SIP IP Address Privacy Setup inside 4085550100 IP 209.165.201.115 4085550199 IP 209.165.201.118 outside CallManager vlan 50 vlan 150 10.2.0.10 209.165.201.5 M 209.165.201.1 209.165.201.100 FWSM 191990 See the following configuration for this example: hostname(config)# interface Vlan12 hostname(config-if)# nameif outside hostname(config-if)# security-level 0 hostname(config-if)# ip address 10.2.0.10 255.0.0.0 hostname(config-if)# ! Vlan 12 is an outside Vlan that routes all packets to 10.x.x.x network back to the FWSM with the next hop IP address set to 10.2.0.10. This is done by configuring policy-based routing at the up-stream router. hostname(config-if)# interface Vlan50 hostname(config-if)# nameif inside hostname(config-if)# security-level 100 hostname(config-if)# ip address 10.100.100.7 255.255.255.0 The two phones 4085550100 and 4085550199 are used in the same 209.165.201.0 subnet. hostname(config)# access-list voice extended permit udp any any eq sip hostname(config)# access-list voice extended permit tcp any any eq sip hostname(config)# access-list voice extended permit udp any any eq tftp hostname(config)# ! hostname(config)# sip-map privacy hostname(config-if)# ip-address-privacy hostname(config)# ! hostname(config)# nat-control hostname(config)# static (inside, outside) 10.3.100.115 209.165.201.115 netmask 255.255.255.255 hostname(config)# static (inside, outside) 10.3.100.118 209.165.201.118 netmask 255.255.255.255 OL-20748-01 Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM 22-87
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