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Figure out network issues when connected to home mikrotik router #35

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opened 2025-01-27 10:28:08 +02:00 by alnyan · 4 comments
alnyan commented 2025-01-27 10:28:08 +02:00
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  • TCP to local network does not work for some reason (check TCP logs, SYN/ACK sequence during connection): ACK to SYN+ACK does not get sent properly
  • Wrong IP address is received for alnyan.me when doing a DNS query
  • ICMP redirects are received by Yggdrasil when sending ICMP replies for some reason. ICMP requests to remote hosts work fine, though
- [x] TCP to local network does not work for some reason (check TCP logs, SYN/ACK sequence during connection): ACK to SYN+ACK does not get sent properly - [ ] Wrong IP address is received for `alnyan.me` when doing a DNS query - [x] ICMP redirects are received by Yggdrasil when sending ICMP replies for some reason. ICMP requests to remote hosts work fine, though
alnyan added the
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riscv64
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alnyan commented 2025-01-27 16:50:53 +02:00
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The issue happens only when connected through a switch to a router. Does not seem to happen when the connection looks like "board -> laptop -> router -> PC"

The issue happens only when connected through a switch to a router. Does not seem to happen when the connection looks like "board -> laptop -> router -> PC"
alnyan changed title from jh7110: figure out network issues to Figure out network issues when connected to home mikrotik router 2025-01-29 12:17:30 +02:00
alnyan commented 2025-01-29 12:18:18 +02:00
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Renamed from jh7110-related issue, the issue is present in x86-64 with rtl81xx driver as well

Renamed from jh7110-related issue, the issue is present in x86-64 with rtl81xx driver as well
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alnyan commented 2025-01-29 12:20:21 +02:00
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Judging by the fact that both dwmac's and rtl81xx's ACK's to SYN+ACK's are not getting there, it seems like the router doesn't really like something about the IP/TCP frames sent

Judging by the fact that both dwmac's and rtl81xx's ACK's to SYN+ACK's are not getting there, it seems like the router doesn't really like something about the IP/TCP frames sent
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alnyan commented 2025-02-13 21:41:56 +02:00
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TCP issues fixed by 3f62374431, was caused by me ignoring the ICMP redirect sent by the router

TCP issues fixed by 3f623744312a6f42e1f8e8eb87d96fbe223daecc, was caused by me ignoring the ICMP redirect sent by the router
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Reference: alnyan/yggdrasil#35
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