How to configure IPv6 tunnel to accept Direct Server Return traffic?
Issue
- How to configure IPv6 tunnel to accept Direct Server Return traffic?
- Citrix NetScreen is configured in DSR mode with IP6IP6 tunnel to real server:
(1) Request from client goes via LB and tunnel
,--------, ,---------------, ,--------,
| Client |---->| Load Balancer |=== tunnel ==>| Server |
'--------' '---------------' '--------'
^ |
| |
\-------------------------------------------------/
(2) Reply from server is routed directly to client
Environment
- Red Hat Enterprise Linux
- IPv6 tunnel
- Citrix NetScreen or other load balancer or firewall in DSR (Direct Server Return) mode
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