Hi everyone,
Please condiser following config:
source(199.199.199.10)--f7 SRX-f0/6(200.200.200.20)-------------200.200.200.2( CISCO ROUTER)
199.199.199.10 is known as 6.6.6.6 by Cisco router,
root> show configuration security nat | display set
set security nat static rule-set LEE from zone ZOO
set security nat static rule-set LEE rule R1 match destination-address 6.6.6.6/32
set security nat static rule-set LEE rule R1 then static-nat prefix 199.199.199.10/32
We expect following:
All traffic received from ZONE LEE and destined to 6.6.6.6/32 will have DESTINATION NATTED To 199.199.199.10
We can see that:
Session ID: 5097, Policy name: T1/4, Timeout: 4, Valid
In: 200.200.200.2/17242 --> 6.6.6.6/1;icmp, If: fe-0/0/6.0, Pkts: 1, Bytes: 60
Out: 199.199.199.10/1 --> 200.200.200.2/17242;icmp, If: fe-0/0/7.0, Pkts: 1, Bytes: 60
Since we are using STATIC ( DESTINATION NAT), so following is also true:
All traffic sourced from 199.199.199.10 and destined to Zone LEE will have Source natted to 6.6.6.6
We can see that: ( 200.200.200.20 is recahable via Interface which is in Zone LEE)
Session ID: 5686, Policy name: T1/4, Timeout: 2, Valid
In: 199.199.199.10/170 --> 200.200.200.2/1;icmp, If: fe-0/0/7.0, Pkts: 1, Bytes: 60
Out: 200.200.200.2/1 --> 6.6.6.6/170;icmp, If: .local..0, Pkts: 1, Bytes: 60
So far so good!!
source(199.199.199.10)--f7 SRX-f0/6(200.200.200.20)-------------200.200.200.2( CISCO ROUTER)
Above 200.200.200.2 is RP
But I noticed following when 199.199.199.10 sends multicast to 235.1.1.1,SRC IP 199.199.199.10 remains unchanged i.e it was not natted to 6.6.6.6 when destination IP is 235.1.1.1
ON RP
We see RP receives register message with 199.199.199.10 , note src ip is not changed to 6.6.6.6 in Register message
*Mar 1 11:53:13.140: PIM(0): Received v2 Register on FastEthernet0/0 from 199.199.199.1
*Mar 1 11:53:13.140: for 199.199.199.10, group 235.1.1.1
*Mar 1 11:53:13.140: PIM(0): Send v2 Register-Stop to 199.199.199.1 for 199.199.199.10, group 235.1.1.1
Session ID: 9032, Policy name: self-traffic-policy/1, Timeout: -1, Valid
In: 199.199.199.10/532 --> 235.1.1.1/1;icmp, If: fe-0/0/7.0, Pkts: 1, Bytes: 60
Out: 235.1.1.1/1 --> 199.199.199.10/532;icmp, If: ppe0.32769, Pkts: 0, Bytes: 0
Below we can see SRX has not natted SOURCE IP :
ession ID: 9032, Policy name: self-traffic-policy/1, Timeout: -1, Valid
In: 199.199.199.10/532 --> 235.1.1.1/1;icmp, If: fe-0/0/7.0, Pkts: 1, Bytes: 60
Out: 235.1.1.1/1 --> 199.199.199.10/532;icmp, If: ppe0.32769, Pkts: 0, Bytes: 0
Is it normal for SRX not perform NAT when destination IP is multicast as seen above.?
Thanks and have a nice evening!!