logs flooding: ENR request failed

[NathanBSC]

System information

Geth version: [v1.5.3-beta](https://github.com/bnb-chain/bsc/releases/tag/v1.5.3-beta)
OS & Version: amzn2.x86_64

Expected behaviour

Actual behaviour

t=01-15|09:00:01.501 lvl=debug msg="ENR request failed" id=b8a3e3a3d21fbdc86d6eae456c4c9acde51b426146156f10ec8b1a391b979ffc ipAddr=172.112.134.245 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.501 lvl=debug msg="ENR request failed" id=e4c00c946476729419a49f83c27b916b254dbba155a372bf9c31be27728d32f9 ipAddr=172.112.134.99 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.502 lvl=debug msg="ENR request failed" id=c503518590e6507d8ed99c742db712efe77652fc3ee4fa36d0a4cf2237d7dbab ipAddr=172.112.134.82 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.502 lvl=debug msg="ENR request failed" id=e4c00c946476729419a49f83c27b916b254dbba155a372bf9c31be27728d32f9 ipAddr=172.112.134.99 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.502 lvl=debug msg="ENR request failed" id=b8a3e3a3d21fbdc86d6eae456c4c9acde51b426146156f10ec8b1a391b979ffc ipAddr=172.112.134.245 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.502 lvl=debug msg="ENR request failed" id=f291b202160c9e8e56c7bd86d5411076a2268cffefc55d3c30a7fcd97aaa20f6 ipAddr=172.112.134.120 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.502 lvl=debug msg="ENR request failed" id=c503518590e6507d8ed99c742db712efe77652fc3ee4fa36d0a4cf2237d7dbab ipAddr=172.112.134.82 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.502 lvl=debug msg="ENR request failed" id=fefe0044d84fa6179c329087968e62bb26f04d2b317344de221e379cf4220ecc ipAddr=172.112.124.32 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.502 lvl=debug msg="ENR request failed" id=9f91673ebbc1851f931455c14fe6390c9477d5c0b5a0ab44ff07a5d2f533bb9e ipAddr=172.112.124.159 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.502 lvl=debug msg="ENR request failed" id=e4c00c946476729419a49f83c27b916b254dbba155a372bf9c31be27728d32f9 ipAddr=172.112.134.99 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.502 lvl=debug msg="ENR request failed" id=4a5ff76c649ea0ce00cffb65f1509ea76b94a48c73e7060f0908d60ac6222368 ipAddr=172.112.124.92 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.503 lvl=debug msg="ENR request failed" id=89e90304b7d84d2396a0db628c6311b1051b528a9e2e8e214ce13f9502f1a05d ipAddr=172.112.124.160 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.503 lvl=debug msg="ENR request failed" id=b8a3e3a3d21fbdc86d6eae456c4c9acde51b426146156f10ec8b1a391b979ffc ipAddr=172.112.134.245 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.503 lvl=debug msg="ENR request failed" id=f291b202160c9e8e56c7bd86d5411076a2268cffefc55d3c30a7fcd97aaa20f6 ipAddr=172.112.134.120 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.503 lvl=debug msg="ENR request failed" id=9f91673ebbc1851f931455c14fe6390c9477d5c0b5a0ab44ff07a5d2f533bb9e ipAddr=172.112.124.159 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.503 lvl=debug msg="ENR request failed" id=c055fbf4deef68ab511de05154f4415b3d93f96b4ac55d8fd06d6bbf30ca4ea1 ipAddr=172.112.124.205 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.503 lvl=debug msg="ENR request failed" id=fefe0044d84fa6179c329087968e62bb26f04d2b317344de221e379cf4220ecc ipAddr=172.112.124.32 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.503 lvl=debug msg="ENR request failed" id=4a5ff76c649ea0ce00cffb65f1509ea76b94a48c73e7060f0908d60ac6222368 ipAddr=172.112.124.92 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.503 lvl=debug msg="ENR request failed" id=89e90304b7d84d2396a0db628c6311b1051b528a9e2e8e214ce13f9502f1a05d ipAddr=172.112.124.160 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.503 lvl=debug msg="ENR request failed" id=9f91673ebbc1851f931455c14fe6390c9477d5c0b5a0ab44ff07a5d2f533bb9e ipAddr=172.112.124.159 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.504 lvl=debug msg="ENR request failed" id=c055fbf4deef68ab511de05154f4415b3d93f96b4ac55d8fd06d6bbf30ca4ea1 ipAddr=172.112.124.205 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.504 lvl=debug msg="ENR request failed" id=f291b202160c9e8e56c7bd86d5411076a2268cffefc55d3c30a7fcd97aaa20f6 ipAddr=172.112.134.120 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.504 lvl=debug msg="ENR request failed" id=fefe0044d84fa6179c329087968e62bb26f04d2b317344de221e379cf4220ecc ipAddr=172.112.124.32 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"
t=01-15|09:00:01.504 lvl=debug msg="ENR request failed" id=89e90304b7d84d2396a0db628c6311b1051b528a9e2e8e214ce13f9502f1a05d ipAddr=172.112.124.160 updPort=30311 err="invalid IP in response record: loopback address from non-loopback host"

tons of logs as above, can be found in qa env.
PS: the real ipAddr has been replaced in above logs

may related config in config.toml

[Node.P2P]
ListenAddr = ":30311"

Steps to reproduce the behaviour

Backtrace

[backtrace]

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