Forum Discussion

quattroginger's avatar
quattroginger
Icon for Nimbostratus rankNimbostratus
Nov 26, 2019

npath troubleshooting

i have npath configured where the VIP, both pool members and self IP are within the same subnet. i believe i am seeing what i should through a tcpdump. i see the SYN from the client, and the ACK from...
application delivery
BIG-IP
LTM
Simon_Blakely's avatar
Simon_Blakely
Icon for Employee rankEmployee

Is your virtual a fastl4 virtual with no SNAT with a profile that allows Loose Initiation and Loose Close?

quattroginger's avatar
quattroginger
Icon for Nimbostratus rankNimbostratus
Nov 27, 2019

i used the iapp to build it out but it looks like Loose Close is enabled but Loose Initiation is not.

  • Simon_Blakely's avatar
    Simon_Blakely
    Icon for Employee rankEmployee
    Nov 27, 2019

    If it is truly an npath configuration, you will need Loose Initiation, as the BigIP will not see the [SYN,ACK] from the pool member to complete the connection initiation.

  • quattroginger's avatar
    quattroginger
    Icon for Nimbostratus rankNimbostratus
    Nov 27, 2019

    thanks. i will make the change and report back results.