Updated the NAT iptables patch for 4.19 buster #4843
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Signed-off-by: Akhilesh Samineni <akhilesh.samineni@broadcom.com>
lguohan
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Jun 24, 2020
Updated NAT kernel patch for 4.19 buster and enabled the "Support-for-fullcone-nat.patch" in series. Depends on : sonic-net/sonic-buildimage#4843 Signed-off-by: Akhilesh Samineni <akhilesh.samineni@broadcom.com>
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retest this please. |
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retest this please. |
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can you update the kernel submodule? |
Signed-off-by: Akhilesh Samineni <akhilesh.samineni@broadcom.com>
@lguohan Updated the latest "linux-kernel" submodule. |
lguohan
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Jul 1, 2020
qiluo-msft
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Jul 12, 2020
…et#4843) Updated the NAT iptables patch for 4.19 buster Depends on PR : sonic-net/sonic-linux-kernel#147 1 Known issue: With both NAT patch files for 4.19 buster kernel, seeing 1 display issue in iptables like explained below On Docker NAT, iptables supported version is 1.6.0 and on base OS it’s 1.8.2. So seeing an display issue of which fullcone option is not showing in version 1.8.2 iptables output and no issues in functionality. Display issue – For example of comparsion: NAT Docker: root@sonic:/home/admin# docker exec -it nat bash root@sonic:/# iptables -t nat -nvL Chain PREROUTING (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 0 0 DNAT all -- * * 0.0.0.0/0 0.0.0.0/0 to:1.1.1.1 fullcone Chain INPUT (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination Chain OUTPUT (policy ACCEPT 30 packets, 2749 bytes) pkts bytes target prot opt in out source destination Chain POSTROUTING (policy ACCEPT 30 packets, 2749 bytes) pkts bytes target prot opt in out source destination root@sonic:/# Base OS: root@sonic:/home/admin# iptables-legacy -t nat -nvL Chain PREROUTING (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 1 36 DNAT all -- * * 0.0.0.0/0 0.0.0.0/0 to:1.1.1.1 Chain INPUT (policy ACCEPT 1 packets, 36 bytes) pkts bytes target prot opt in out source destination Chain OUTPUT (policy ACCEPT 41 packets, 3572 bytes) pkts bytes target prot opt in out source destination Chain POSTROUTING (policy ACCEPT 41 packets, 3572 bytes) pkts bytes target prot opt in out source destination root@sonic:/home/admin# To fix this issue, iptables need to update from 1.6.0 to 1.8.2 version and have to update the NAT docker from stretch to buster. Will raise a new PR with this. Signed-off-by: Akhilesh Samineni akhilesh.samineni@broadcom.com Signed-off-by: Akhilesh Samineni <akhilesh.samineni@broadcom.com>
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Updated the NAT iptables patch for 4.19 buster
Depends on PR : sonic-net/sonic-linux-kernel#147
1 Known issue:
With both NAT patch files for 4.19 buster kernel, seeing 1 display issue in iptables like explained below
On Docker NAT, iptables supported version is 1.6.0 and on base OS it’s 1.8.2. So seeing an display issue of which fullcone option is not showing in version 1.8.2 iptables output and no issues in functionality.
Display issue – For example of comparsion:
NAT Docker:
root@sonic:/home/admin# docker exec -it nat bash
root@sonic:/# iptables -t nat -nvL
Chain PREROUTING (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
0 0 DNAT all -- * * 0.0.0.0/0 0.0.0.0/0 to:1.1.1.1 fullcone
Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
Chain OUTPUT (policy ACCEPT 30 packets, 2749 bytes)
pkts bytes target prot opt in out source destination
Chain POSTROUTING (policy ACCEPT 30 packets, 2749 bytes)
pkts bytes target prot opt in out source destination
root@sonic:/#
Base OS:
root@sonic:/home/admin# iptables-legacy -t nat -nvL
Chain PREROUTING (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
1 36 DNAT all -- * * 0.0.0.0/0 0.0.0.0/0 to:1.1.1.1
Chain INPUT (policy ACCEPT 1 packets, 36 bytes)
pkts bytes target prot opt in out source destination
Chain OUTPUT (policy ACCEPT 41 packets, 3572 bytes)
pkts bytes target prot opt in out source destination
Chain POSTROUTING (policy ACCEPT 41 packets, 3572 bytes)
pkts bytes target prot opt in out source destination
root@sonic:/home/admin#
To fix this issue, iptables need to update from 1.6.0 to 1.8.2 version and have to update the NAT docker from stretch to buster.
Will raise a new PR with this.
Signed-off-by: Akhilesh Samineni akhilesh.samineni@broadcom.com