Revisions to HSRP and Static NAT behavior

deleted 56 characters in body

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edited Nov 7, 2013 at 10:51

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The problem was my testing procedure. I simulated the http connection using telnet to http port but i didnt generatedI did not generate any traffic(requests). I I repeated the tests using GET requests and the nat session table was replicated almost instant.

I post the degugdebug messages.

The NAT replication trigger is the next segment,request request in the tcp session.

telnet 10.31.73.12 3099 *Nov 7 03:52:17.071: TCBB2701B60 connected to 10.31.73.12.3099GET / HTTP/1.0 GET / HTTP/1.0 GET / HTTP/1.0

telnet 10.31.73.12 3099 
*Nov  7 03:52:17.071: TCBB2701B60 connected to 10.31.73.12.3099
GET / HTTP/1.0
GET / HTTP/1.0
GET / HTTP/1.0

NATGW2# *Nov 7 03:52:32.700: %HSRP-5-STATECHANGE: Ethernet0/2 Grp 100 state Standby -> Active NATGW2# *Nov 7 03:52:32.701: IP-ADDR: ipaddr_table_insert_w_tableid() 10.31.71.254, in global table on Ethernet0/2 NATGW2# *Nov 7 03:52:34.657: %HSRP-5-STATECHANGE: Ethernet0/1 Grp 200 state Standby -> Active

NATGW2#
*Nov  7 03:52:32.700: %HSRP-5-STATECHANGE: Ethernet0/2 Grp 100 state Standby -> Active
NATGW2#
*Nov  7 03:52:32.701:  IP-ADDR: ipaddr_table_insert_w_tableid() 10.31.71.254, in global table on Ethernet0/2
NATGW2#
*Nov  7 03:52:34.657: %HSRP-5-STATECHANGE: Ethernet0/1 Grp 200 state Standby -> Active

*Nov 7 03:52:34.658: IP-ADDR: ipaddr_table_insert_w_tableid() 192.168.153.253, in global table on Ethernet0/1

*Nov  7 03:52:34.658:  IP-ADDR: ipaddr_table_insert_w_tableid() 192.168.153.253, in global table on Ethernet0/1

*Nov 7 03:52:34.745: NAT: API parameters passed: src_addr:10.31.71.3, src_port: 0 dest_addr:10.31.73.12, dest_port:0, proto:6 if_input:Ethernet0/2 pak:B072F0A8 get_translated:1 *Nov 7 03:52:34.745: ipnat_api_translated_address_and_port_common, out->in want IL,OL *Nov 7 03:52:34.745: NAT: API Translated-Info(1): (src-addr:10.31.71.3, src-por t:0) (dest-addr:192.168.153.12, dest-port:0)

Thanks all for helping.

*Nov  7 03:52:34.745: NAT: API parameters passed: src_addr:10.31.71.3, src_port:0 dest_addr:10.31.73.12, dest_port:0, proto:6 if_input:Ethernet0/2 pak:B072F0A8 get_translated:1
*Nov  7 03:52:34.745: ipnat_api_translated_address_and_port_common, out->in want IL,OL
*Nov  7 03:52:34.745: NAT: API Translated-Info(1): (src-addr:10.31.71.3, src-port:0) (dest-addr:192.168.153.12, dest-port:0)

The problem was my testing procedure. I simulated the http connection using telnet to http port but i didnt generated any traffic(requests). I repeated the tests using GET requests and the nat session table was replicated almost instant.

I post the degug messages.

The NAT replication trigger is the next segment,request in the tcp session.

telnet 10.31.73.12 3099 *Nov 7 03:52:17.071: TCBB2701B60 connected to 10.31.73.12.3099GET / HTTP/1.0 GET / HTTP/1.0 GET / HTTP/1.0

NATGW2# *Nov 7 03:52:32.700: %HSRP-5-STATECHANGE: Ethernet0/2 Grp 100 state Standby -> Active NATGW2# *Nov 7 03:52:32.701: IP-ADDR: ipaddr_table_insert_w_tableid() 10.31.71.254, in global table on Ethernet0/2 NATGW2# *Nov 7 03:52:34.657: %HSRP-5-STATECHANGE: Ethernet0/1 Grp 200 state Standby -> Active

*Nov 7 03:52:34.658: IP-ADDR: ipaddr_table_insert_w_tableid() 192.168.153.253, in global table on Ethernet0/1

*Nov 7 03:52:34.745: NAT: API parameters passed: src_addr:10.31.71.3, src_port: 0 dest_addr:10.31.73.12, dest_port:0, proto:6 if_input:Ethernet0/2 pak:B072F0A8 get_translated:1 *Nov 7 03:52:34.745: ipnat_api_translated_address_and_port_common, out->in want IL,OL *Nov 7 03:52:34.745: NAT: API Translated-Info(1): (src-addr:10.31.71.3, src-por t:0) (dest-addr:192.168.153.12, dest-port:0)

Thanks all for helping.

The problem was my testing procedure. I simulated the http connection using telnet to http port but I did not generate any traffic(requests). I repeated the tests using GET requests and the nat session table was replicated almost instant.

I post the debug messages.

The NAT replication trigger is the next segment, request in the tcp session.

telnet 10.31.73.12 3099 
*Nov  7 03:52:17.071: TCBB2701B60 connected to 10.31.73.12.3099
GET / HTTP/1.0
GET / HTTP/1.0
GET / HTTP/1.0

NATGW2#
*Nov  7 03:52:32.700: %HSRP-5-STATECHANGE: Ethernet0/2 Grp 100 state Standby -> Active
NATGW2#
*Nov  7 03:52:32.701:  IP-ADDR: ipaddr_table_insert_w_tableid() 10.31.71.254, in global table on Ethernet0/2
NATGW2#
*Nov  7 03:52:34.657: %HSRP-5-STATECHANGE: Ethernet0/1 Grp 200 state Standby -> Active

*Nov  7 03:52:34.658:  IP-ADDR: ipaddr_table_insert_w_tableid() 192.168.153.253, in global table on Ethernet0/1

*Nov  7 03:52:34.745: NAT: API parameters passed: src_addr:10.31.71.3, src_port:0 dest_addr:10.31.73.12, dest_port:0, proto:6 if_input:Ethernet0/2 pak:B072F0A8 get_translated:1
*Nov  7 03:52:34.745: ipnat_api_translated_address_and_port_common, out->in want IL,OL
*Nov  7 03:52:34.745: NAT: API Translated-Info(1): (src-addr:10.31.71.3, src-port:0) (dest-addr:192.168.153.12, dest-port:0)

added 7 characters in body

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edited Nov 7, 2013 at 9:17

Tsubasa

333
3
8

I have found the issue.

The problem was my testing procedure. I simulated the http connection using telnet to http port but i didnt generated any traffic(requests). I repeated the tests using GET requests and the nat session table was replicated almost instant.

I post the degug messages.

The NAT replication trigger is the next segment,request in the tcp session.

Debug messages

Telnet from client

telnet 10.31.73.12 3099 *Nov 7 03:52:17.071: TCBB2701B60 connected to 10.31.73.12.3099GET / HTTP/1.0 GET / HTTP/1.0 GET / HTTP/1.0

New active

Becomes Active at 03:52:32,34

NATGW2# *Nov 7 03:52:32.700: %HSRP-5-STATECHANGE: Ethernet0/2 Grp 100 state Standby -> Active NATGW2# *Nov 7 03:52:32.701: IP-ADDR: ipaddr_table_insert_w_tableid() 10.31.71.254, in global table on Ethernet0/2 NATGW2# *Nov 7 03:52:34.657: %HSRP-5-STATECHANGE: Ethernet0/1 Grp 200 state Standby -> Active

HSRP virtual ip is added to the new Active. listens for ARP requests for the HSRP IP

*Nov 7 03:52:34.658: IP-ADDR: ipaddr_table_insert_w_tableid() 192.168.153.253, in global table on Ethernet0/1

The nat session is recreated on the new Active .

*Nov 7 03:52:34.745: NAT: API parameters passed: src_addr:10.31.71.3, src_port: 0 dest_addr:10.31.73.12, dest_port:0, proto:6 if_input:Ethernet0/2 pak:B072F0A8 get_translated:1 *Nov 7 03:52:34.745: ipnat_api_translated_address_and_port_common, out->in want IL,OL *Nov 7 03:52:34.745: NAT: API Translated-Info(1): (src-addr:10.31.71.3, src-por t:0) (dest-addr:192.168.153.12, dest-port:0)

Thanks all for helping.

I have found the issue.

The problem was my testing procedure. I simulated the http connection using telnet to http port but i didnt generated any traffic(requests). I repeated the tests using GET requests and the nat session table was replicated almost instant.

I post the degug messages.

The NAT replication trigger is the next segment,request in the tcp session.

Debug messages

Telnet from client

telnet 10.31.73.12 3099 *Nov 7 03:52:17.071: TCBB2701B60 connected to 10.31.73.12.3099GET / HTTP/1.0 GET / HTTP/1.0 GET / HTTP/1.0

New active

Becomes Active at 03:52:32,34

NATGW2# *Nov 7 03:52:32.700: %HSRP-5-STATECHANGE: Ethernet0/2 Grp 100 state Standby -> Active NATGW2# *Nov 7 03:52:32.701: IP-ADDR: ipaddr_table_insert_w_tableid() 10.31.71.254, in global table on Ethernet0/2 NATGW2# *Nov 7 03:52:34.657: %HSRP-5-STATECHANGE: Ethernet0/1 Grp 200 state Standby -> Active

HSRP virtual ip is added to the new Active.

*Nov 7 03:52:34.658: IP-ADDR: ipaddr_table_insert_w_tableid() 192.168.153.253, in global table on Ethernet0/1

The nat session is recreated on the new Active .

*Nov 7 03:52:34.745: NAT: API parameters passed: src_addr:10.31.71.3, src_port: 0 dest_addr:10.31.73.12, dest_port:0, proto:6 if_input:Ethernet0/2 pak:B072F0A8 get_translated:1 *Nov 7 03:52:34.745: ipnat_api_translated_address_and_port_common, out->in want IL,OL *Nov 7 03:52:34.745: NAT: API Translated-Info(1): (src-addr:10.31.71.3, src-por t:0) (dest-addr:192.168.153.12, dest-port:0)

Thanks all for helping.

I have found the issue.

The problem was my testing procedure. I simulated the http connection using telnet to http port but i didnt generated any traffic(requests). I repeated the tests using GET requests and the nat session table was replicated almost instant.

I post the degug messages.

The NAT replication trigger is the next segment,request in the tcp session.

Debug messages

Telnet from client

telnet 10.31.73.12 3099 *Nov 7 03:52:17.071: TCBB2701B60 connected to 10.31.73.12.3099GET / HTTP/1.0 GET / HTTP/1.0 GET / HTTP/1.0

New active

Becomes Active at 03:52:32,34

NATGW2# *Nov 7 03:52:32.700: %HSRP-5-STATECHANGE: Ethernet0/2 Grp 100 state Standby -> Active NATGW2# *Nov 7 03:52:32.701: IP-ADDR: ipaddr_table_insert_w_tableid() 10.31.71.254, in global table on Ethernet0/2 NATGW2# *Nov 7 03:52:34.657: %HSRP-5-STATECHANGE: Ethernet0/1 Grp 200 state Standby -> Active

new Active listens for ARP requests for the HSRP IP

*Nov 7 03:52:34.658: IP-ADDR: ipaddr_table_insert_w_tableid() 192.168.153.253, in global table on Ethernet0/1

The nat session is recreated on the new Active .

*Nov 7 03:52:34.745: NAT: API parameters passed: src_addr:10.31.71.3, src_port: 0 dest_addr:10.31.73.12, dest_port:0, proto:6 if_input:Ethernet0/2 pak:B072F0A8 get_translated:1 *Nov 7 03:52:34.745: ipnat_api_translated_address_and_port_common, out->in want IL,OL *Nov 7 03:52:34.745: NAT: API Translated-Info(1): (src-addr:10.31.71.3, src-por t:0) (dest-addr:192.168.153.12, dest-port:0)

Thanks all for helping.

Source Link

created Nov 7, 2013 at 8:27

Tsubasa

333
3
8

I have found the issue.

The problem was my testing procedure. I simulated the http connection using telnet to http port but i didnt generated any traffic(requests). I repeated the tests using GET requests and the nat session table was replicated almost instant.

I post the degug messages.

The NAT replication trigger is the next segment,request in the tcp session.

Debug messages

Telnet from client

telnet 10.31.73.12 3099 *Nov 7 03:52:17.071: TCBB2701B60 connected to 10.31.73.12.3099GET / HTTP/1.0 GET / HTTP/1.0 GET / HTTP/1.0

New active

Becomes Active at 03:52:32,34

NATGW2# *Nov 7 03:52:32.700: %HSRP-5-STATECHANGE: Ethernet0/2 Grp 100 state Standby -> Active NATGW2# *Nov 7 03:52:32.701: IP-ADDR: ipaddr_table_insert_w_tableid() 10.31.71.254, in global table on Ethernet0/2 NATGW2# *Nov 7 03:52:34.657: %HSRP-5-STATECHANGE: Ethernet0/1 Grp 200 state Standby -> Active

HSRP virtual ip is added to the new Active.

*Nov 7 03:52:34.658: IP-ADDR: ipaddr_table_insert_w_tableid() 192.168.153.253, in global table on Ethernet0/1

The nat session is recreated on the new Active .

*Nov 7 03:52:34.745: NAT: API parameters passed: src_addr:10.31.71.3, src_port: 0 dest_addr:10.31.73.12, dest_port:0, proto:6 if_input:Ethernet0/2 pak:B072F0A8 get_translated:1 *Nov 7 03:52:34.745: ipnat_api_translated_address_and_port_common, out->in want IL,OL *Nov 7 03:52:34.745: NAT: API Translated-Info(1): (src-addr:10.31.71.3, src-por t:0) (dest-addr:192.168.153.12, dest-port:0)

Thanks all for helping.

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