Forum Discussion
Chura_16140
Nov 15, 2012Nimbostratus
DNS Query - reply from unexpected source
Hi Guys,
I'm new to F5, and something annoy me i can't find why it happen.
My topology:
Network (Public IP - Pretend its 100.100.100.0/24) --> Switch Stack --> LAG --> Viprion LTM -->...
Chura_16140
Nov 16, 2012Nimbostratus
Well I need to check, I need my system team to make this.
meanwhile. same error:
]$ host ine.com 8.8.4.4
;; reply from unexpected source: 8.8.4.446021, expected 8.8.4.453
;; reply from unexpected source: 8.8.4.446021, expected 8.8.4.453
tcpdump -nnvvvS -i any host 8.8.4.4
tcpdump: listening on any, link-type EN10MB (Ethernet), capture size 96 bytes
17:08:20.276695 IP (tos 0x0, ttl 64, id 46310, offset 0, flags [none], proto: UDP (17), length: 53) 100.100.100.40.53409 > 8.8.4.4.53: [udp sum ok] 27525+ A? ine.com. (25)
17:08:20.276718 IP (tos 0x0, ttl 63, id 46310, offset 0, flags [none], proto: UDP (17), length: 53) 100.100.100.40.53409 > 8.8.4.4.53: [udp sum ok] 27525+ A? ine.com. (25)
17:08:20.378062 IP (tos 0x80, ttl 49, id 54799, offset 0, flags [none], proto: UDP (17), length: 69) 8.8.4.4.53 > 100.100.100.40.53409: [udp sum ok] 27525 q: A? ine.com. 1/0/0 ine.com. A 75.140.41.225 (41)
17:08:20.378091 IP (tos 0x80, ttl 48, id 54799, offset 0, flags [none], proto: UDP (17), length: 69) 8.8.4.4.46021 > 100.100.100.40.53409: [udp sum ok] UDP, length 41
Again, Same behaviour :(
I dont get it, i'm the only one who try this ? LOL
(cfg-sync Standalone)(/S1-green-P:Active)(/Common)(tmos.ltm.virtual) list MNG_ALLOW_ALL_OUT
ltm virtual MNG_ALLOW_ALL_OUT {
destination 0.0.0.0:any
ip-forward
mask any
profiles {
fastL4 { }
}
translate-address disabled
translate-port disabled
vlans {
RADIUS_LAN
}
vlans-enabled
}
(cfg-sync Standalone)(/S1-green-P:Active)(/Common)(tmos.ltm.virtual) list MNG_RADIUS_IN
ltm virtual MNG_RADIUS_IN {
destination 100.100.100.0:any
ip-forward
mask 255.255.255.0
profiles {
fastL4 { }
}
translate-address disabled
translate-port disabled
vlans {
CRS1.WAN
CRS2.WAN
}
vlans-enabled
}
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