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[Q&A] The NAT is not working on NE20E

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Hello everyone,

Now I’d like to share with you how to deal the NAT is not working on NE20E.

The problem is that customer configure NAT like below, but when he try to ping from internal, it can't ping, check the NAT session, find that the NAT is not working.

#
service-location 1
 location slot 3
#
service-instance-group Mada
 service-location 1
#
nat instance Mada id 1
 service-instance-group Mada
 nat address-group Mada group-id 1 x.x.x.x x.x.x.y
 nat log session enable
#
acl number 3001
 rule 5 permit ip
#
interface GigabitEthernet0/3/6
 negotiation auto
 undo shutdown
 ip address y.y.y.2 255.255.255.252
 dcn
 nat bind acl 3001 instance Mada
#

#
bgp 65100
 peer y.y.y.1 as-number 47442
 peer y.y.y.y.1 password cipher %^%#yuV/;b"e6<7U/D8FMt.B|n+r/B&n8U/Q{=LMKWKF%^%#
 #
 ipv4-family unicast
  undo synchronization
  peer y.y.y.y.1 enable

Check the NAT configuration, it is correct;

Check the route and found that the NAT group addresses did not network to the bgp peer, there is no backup route to NAT group address, it lead to the NAT is not working .

After network the x.x.x.x under bgp, it is working fine.

This is what I want to share with you today, thank you!


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