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| en:dpi:bras_bng:ip_pool [2025/09/02 15:20] – elena.krasnobryzh | en:dpi:bras_bng:ip_pool [2025/09/16 14:29] (current) – elena.krasnobryzh |
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| ====== Local DHCP (IP address pools) ====== | ====== Local DHCP (IP Address Pools) ====== |
| {{indexmenu_n>7}} | {{indexmenu_n>7}} |
| | <note important>When using a local DHCP server and issuing an IP address to a subscriber via Framed-Pool, the fastDPI, fastPCRF, and KEA modules must operate within the same local server.</note> |
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| SSG supports IP address pools for [[en:dpi:bras_bng:bras_l2_vlan:bras_l2_vlan_dhcp:bras_l2_vlan_dhcp_proxy|DHCP Radius Proxy]] and [[en:dpi:bras_bng:bras_pppoe|PPPoE]] modes. | SSG supports IP address pools for [[en:dpi:bras_bng:bras_l2_vlan:bras_l2_vlan_dhcp:bras_l2_vlan_dhcp_proxy|DHCP Radius Proxy]] and [[en:dpi:bras_bng:bras_pppoe|PPPoE]] modes. |
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| {{ :dpi:bras_bng:ip_pool:framed-pool.png?nolink&600 |}} | {{ :dpi:bras_bng:ip_pool:framed-pool.png?nolink&600 |}} |
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| Support for pools can be briefly described this way: \\ | In brief, pool support can be described as follows: \\ |
| SSG expects to receive the subscriber IP address in the Radius ''Access-Accept'' response. A billing system behind the Radius server can provide the name of the address pool from which the address should be allocated to this subscriber rather than directly provide an IP address. The pool name is specified in the attribute **''Framed-Pool''** in case of IPv4 and in **''Framed-IPv6-Pool''** attribute in case of IPv6. \\ | SSG expects to receive the subscriber's IP address in the RADIUS ''Access-Accept'' response. The billing system behind RADIUS may, instead of issuing an IP address, provide the name of an address pool from which an address should be allocated to this subscriber. For IPv4, the pool name is specified in the **''Framed-Pool''** attribute; for IPv6, it is specified in the **''Framed-IPv6-Pool''** attribute. \\ |
| Once received pool name within the ''Access-Accept'', FastPCRF requests the subscriber IP address from the DHCP server. Having received a response from the DHCP server, fastPCRF extracts the IP address from it, combines the options specified in the DHCP response with Access-Accept attributes, and sends the authorization response via fastdpi to the subscriber. | FastPCRF, upon receiving the pool name in ''Access-Accept'', requests the subscriber's IP address from the DHCP server. Upon receiving a response from the DHCP server, fastPCRF extracts the IP address from it, combines the options specified in the DHCP response with the Access-Accept attributes, and sends the authorization response to the subscriber via fastDPI. |
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| Technical details of configuring IP pools mode in fastPCRF and special features of particular modes are given below: | The following sections describe technical details for configuring IP pool support in fastPCRF and operational specifics for each mode: |
| - [[en:dpi:bras_bng:ip_pool:ipv4|IPv4 pools - Framed-Pool attribute and fastPCRF configuring]] | - [[en:dpi:bras_bng:ip_pool:ipv4|IPv4 Pools - Framed-Pool Attribute and fastPCRF Configuration]] |
| - [[en:dpi:bras_bng:ip_pool:ipv6|IPv6 pools - Framed-IPv6-Pool attribute and fastPCRF configuring]] | - [[en:dpi:bras_bng:ip_pool:ipv6|IPv6 Pools - Framed-IPv6-Pool Attribute and fastPCRF Configuration]] |
