{"id":5047,"date":"2025-11-14T23:40:49","date_gmt":"2025-11-15T05:40:49","guid":{"rendered":"https:\/\/icesquare.com\/wordpress\/?p=5047"},"modified":"2025-11-14T23:40:49","modified_gmt":"2025-11-15T05:40:49","slug":"how-to-install-realtek-2-5g-ethernet-driver-r8125-on-rhel7","status":"publish","type":"post","link":"https:\/\/icesquare.com\/wordpress\/how-to-install-realtek-2-5g-ethernet-driver-r8125-on-rhel7\/","title":{"rendered":"How to Install Realtek 2.5G Ethernet driver r8125 on RHEL7"},"content":{"rendered":"

I am going to show you how to install TP-Link 2.5GB PCIe Network Card (TX201) in CentOS 7.<\/p>\n

There are few methods. The first method is to compile the driver from the Realtek website<\/a>. If you want to try it, don’t be fooled by the file name (r8125-9.016.01.tar.tgz). It is in bzip2 format. Also, good luck to compile from the source as it not compilable with the gcc installed in RHEL7.<\/p>\n

Here are some errors if you are interested:<\/p>\n

\r\nCC:  cc\r\nCCVERSION:  4.8.5\r\nKERNEL_GCC_VERSION:  4.8.5\r\nKVER:  3.10.0-1160.119.1.el7.x86_64\r\nKMAJ:  3\r\nKMIN:  10\r\nKREV:  0\r\nBASEDIR:  \/lib\/modules\/3.10.0-1160.119.1.el7.x86_64\r\nDRIVERDIR:  \/lib\/modules\/3.10.0-1160.119.1.el7.x86_64\/kernel\/drivers\/net\/ethernet\/realtek\r\nPWD:  \/tmp\/r8125\/r8125-9.016.01\/src\r\nRTKDIR:  kernel\/drivers\/net\/ethernet\/realtek\r\n\r\nmake -C \/lib\/modules\/3.10.0-1160.119.1.el7.x86_64\/build M=\/tmp\/r8125\/r8125-9.016.01\/src clean\r\nmake[1]: Entering directory `\/usr\/src\/kernels\/3.10.0-1160.119.1.el7.x86_64'\r\n  CLEAN   \/tmp\/r8125\/r8125-9.016.01\/src\/.tmp_versions\r\nmake[1]: Leaving directory `\/usr\/src\/kernels\/3.10.0-1160.119.1.el7.x86_64'\r\nmake -C \/lib\/modules\/3.10.0-1160.119.1.el7.x86_64\/build M=\/tmp\/r8125\/r8125-9.016.01\/src modules\r\nmake[1]: Entering directory `\/usr\/src\/kernels\/3.10.0-1160.119.1.el7.x86_64'\r\n  CC [M]  \/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.o\r\nIn file included from \/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:87:0:\r\n\/tmp\/r8125\/r8125-9.016.01\/src\/r8125.h:130:9: error: static declaration of \u2018strscpy\u2019 follows non-static declaration\r\n ssize_t strscpy(char *dest, const char *src, size_t count)\r\n         ^\r\nIn file included from include\/linux\/bitmap.h:8:0,\r\n                 from include\/linux\/cpumask.h:11,\r\n                 from .\/arch\/x86\/include\/asm\/cpumask.h:4,\r\n                 from .\/arch\/x86\/include\/asm\/msr.h:10,\r\n                 from .\/arch\/x86\/include\/asm\/processor.h:20,\r\n                 from .\/arch\/x86\/include\/asm\/cpufeature.h:7,\r\n                 from .\/arch\/x86\/include\/asm\/thread_info.h:22,\r\n                 from include\/linux\/thread_info.h:66,\r\n                 from include\/linux\/preempt.h:9,\r\n                 from include\/linux\/spinlock.h:50,\r\n                 from include\/linux\/seqlock.h:35,\r\n                 from include\/linux\/time.h:5,\r\n                 from include\/linux\/stat.h:18,\r\n                 from include\/linux\/module.h:10,\r\n                 from \/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:39:\r\ninclude\/linux\/string.h:31:9: note: previous declaration of \u2018strscpy\u2019 was here\r\n ssize_t strscpy(char *, const char *, size_t);\r\n         ^\r\nIn file included from \/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:87:0:\r\n\/tmp\/r8125\/r8125-9.016.01\/src\/r8125.h:157:30: error: redefinition of \u2018skb_checksum_start\u2019\r\n static inline unsigned char *skb_checksum_start(const struct sk_buff *skb)\r\n                              ^\r\nIn file included from include\/linux\/if_ether.h:23:0,\r\n                 from include\/uapi\/linux\/ethtool.h:18,\r\n                 from include\/linux\/ethtool.h:17,\r\n                 from include\/linux\/netdevice.h:43,\r\n                 from \/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:42:\r\ninclude\/linux\/skbuff.h:2347:30: note: previous definition of \u2018skb_checksum_start\u2019 was here\r\n static inline unsigned char *skb_checksum_start(const struct sk_buff *skb)\r\n                              ^\r\nIn file included from \/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:87:0:\r\n\/tmp\/r8125\/r8125-9.016.01\/src\/r8125.h:209:20: error: redefinition of \u2018page_is_pfmemalloc\u2019\r\n static inline bool page_is_pfmemalloc(struct page *page)\r\n                    ^\r\nIn file included from .\/arch\/x86\/include\/asm\/pci.h:4:0,\r\n                 from include\/linux\/pci.h:1644,\r\n                 from \/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:41:\r\ninclude\/linux\/mm.h:1161:20: note: previous definition of \u2018page_is_pfmemalloc\u2019 was here\r\n static inline bool page_is_pfmemalloc(struct page *page)\r\n                    ^\r\nIn file included from \/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:87:0:\r\n\/tmp\/r8125\/r8125-9.016.01\/src\/r8125.h:255:20: error: redefinition of \u2018ether_addr_copy\u2019\r\n static inline void ether_addr_copy(u8 *dst, const u8 *src)\r\n                    ^\r\nIn file included from \/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:43:0:\r\ninclude\/linux\/etherdevice.h:246:20: note: previous definition of \u2018ether_addr_copy\u2019 was here\r\n static inline void ether_addr_copy(u8 *dst, const u8 *src)\r\n                    ^\r\n\/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:16851:12: error: static declaration of \u2018pci_enable_msix_range\u2019 follows non-static declaration\r\n static int pci_enable_msix_range(struct pci_dev *dev, struct msix_entry *entries,\r\n            ^\r\nIn file included from \/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:41:0:\r\ninclude\/linux\/pci.h:1336:5: note: previous declaration of \u2018pci_enable_msix_range\u2019 was here\r\n int pci_enable_msix_range(struct pci_dev *dev, struct msix_entry *entries,\r\n     ^\r\n\/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:17066:9: error: unknown field \u2018ndo_change_mtu\u2019 specified in initializer\r\n         .ndo_change_mtu     = rtl8125_change_mtu,\r\n         ^\r\n\/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:17066:9: warning: missing braces around initializer [-Wmissing-braces]\r\n\/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:17066:9: warning: (near initialization for \u2018rtl8125_netdev_ops.\u2019) [-Wmissing-braces]\r\n\/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:17066:9: warning: initialization from incompatible pointer type [enabled by default]\r\n\/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:17066:9: warning: (near initialization for \u2018rtl8125_netdev_ops.<\/anonymous>.ndo_get_stats64\u2019) [enabled by default]\r\n\/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c: In function \u2018rtl8125_rx_interrupt\u2019:\r\n\/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.c:20713:20: error: \u2018struct net_device\u2019 has no member named \u2018last_rx\u2019\r\n                 dev->last_rx = jiffies;\r\n                    ^\r\nmake[2]: *** [\/tmp\/r8125\/r8125-9.016.01\/src\/r8125_n.o] Error 1\r\nmake[1]: *** [_module_\/tmp\/r8125\/r8125-9.016.01\/src] Error 2\r\nmake[1]: Leaving directory `\/usr\/src\/kernels\/3.10.0-1160.119.1.el7.x86_64'\r\nmake: *** [modules] Error 2\r\n<\/anonymous><\/pre>\n
The second method is here:<\/p>\n
First, download the compiled driver from here<\/a>. There are multiple versions, I suggest to pick the latest version (e.g., \tkmod-r8125-9.013.02-1.el7_9.elrepo.x86_64.rpm)<\/p>\n
\r\n#wget ftp:\/\/ftp.icm.edu.pl\/vol\/rzm5\/linux-elrepo\/archive\/elrepo\/el7\/x86_64\/RPMS\/kmod-r8125-9.013.02-1.el7_9.elrepo.x86_64.rpm\r\n#sudo yum install kmod-r8125-9.013.02-1.el7_9.elrepo.x86_64.rpm\r\n<\/pre>\n<\/p>\n
After that, verify the driver has been installed:<\/p>\n
\r\n#kmod list | grep r8125\r\nr8125                 208216  0\r\n<\/pre>\n
To load the driver, run the following:<\/p>\n
\r\n#sudo modprobe r8125\r\n<\/pre>\n
To verify the driver is loaded:<\/p>\n
\r\n#ifconfig\r\np4p1: flags=4163  mtu 1500\r\n        inet 192.168.1.123  netmask 255.255.255.0  broadcast 192.168.1.255\r\n        inet6 fe80::8e78:31b7:7130:f1e9  prefixlen 64  scopeid 0x20\r\n        ether 00:11:22:33:44:55  txqueuelen 1000  (Ethernet)\r\n<\/pre>\n
Verify the speed is correct:<\/p>\n
\r\nethtool p4p1 | grep Speed\r\nCannot get wake-on-lan settings: Operation not permitted\r\n        Speed: 2500Mb\/s\r\n<\/pre>\n
That’s it, hope it helps.<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
I am going to show you how to install TP-Link 2.5GB PCIe Network Card (TX201) in CentOS 7. There are few methods. The first method is to compile the driver Continue Reading →<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[6],"tags":[],"class_list":["post-5047","post","type-post","status-publish","format-standard","hentry","category-technology"],"jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/p1sqzr-1jp","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":4436,"url":"https:\/\/icesquare.com\/wordpress\/how-to-fix-the-mess-created-by-zfs-on-linux-after-update\/","url_meta":{"origin":5047,"position":0},"title":"“ZFS on Linux”: The ZFS modules are not loaded. Try running ‘\/sbin\/modprobe zfs’ as root to load them.","author":"Derrick","date":"April 10, 2018","format":false,"excerpt":"Last Updated: Oct 10, 2021 This article is based on my experience with CentOS 7. If you are running other Linux distributions, please adjust the commands and package names accordingly (e.g., yum --> apt-get). As of Oct 3, 2019, I cannot get ZFS on Linux running on CentOS 8. ZFS\u2026","rel":"","context":"In "Computer Problems"","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4630,"url":"https:\/\/icesquare.com\/wordpress\/zfs-how-to-update-linux-kernel-without-reboot\/","url_meta":{"origin":5047,"position":1},"title":"[ZFS On Linux]How to Update Linux Kernel without Rebooting the System","author":"Derrick","date":"January 3, 2020","format":false,"excerpt":"As of Jan 2020, I manage 65 Linux + ZFS servers. Normally, I prefer to reboot each server after updating its kernel (according to Ret Hat, most updates are related to security fix). 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Having using ZFS on Linux since 2013 (and ZFS on FreeBSD since 2009), I've noticed that ZFS does not like Linux\u2026","rel":"","context":"In "Computer Problems"","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4691,"url":"https:\/\/icesquare.com\/wordpress\/virtualboxcentos-7-ns_error_failure\/","url_meta":{"origin":5047,"position":3},"title":"[VirtualBox]CentOS 7: NS_ERROR_FAILURE","author":"Derrick","date":"February 28, 2020","format":false,"excerpt":"After I reboot one of my VirtualBox host servers today, I was unable to start the virtual box guests. The error was a popular one: NS_ERROR_FAILURE. The problem was caused by the kernel mismatch problem. All you need is to rebuild the virtual box library to match with your system\u2026","rel":"","context":"In "Computer Problems"","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4679,"url":"https:\/\/icesquare.com\/wordpress\/zfs-on-linux-trouble-this-pool-uses-the-following-features-not-supported-by-this-system-all-unsupported-features-are-only-required-for-writing-to-the-pool\/","url_meta":{"origin":5047,"position":4},"title":"[ZFS On Linux Trouble] This pool uses the following feature(s) not supported by this system…All unsupported features are only required for writing to the pool, zpool create: invalid argument for this pool operation","author":"Derrick","date":"February 11, 2020","format":false,"excerpt":"When I rebooted my computer and loaded my ZFS pool today, I got this error message: #sudo zpool import -a This pool uses the following feature(s) not supported by this system: org.zfsonlinux:project_quota (space\/object accounting based on project ID.) com.delphix:spacemap_v2 (Space maps representing large segments are more efficient.) All unsupported features\u2026","rel":"","context":"In "Technology"","block_context":{"text":"Technology","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4542,"url":"https:\/\/icesquare.com\/wordpress\/centos-7-dracut-initqueue-timeout\/","url_meta":{"origin":5047,"position":5},"title":"CentOS 7 – dracut-initqueue timeout","author":"Derrick","date":"January 2, 2019","format":false,"excerpt":"I received a Christmas gift from the RHEL 7 \/ CentOS 7 \/ Linux kernel team today. After my system got updated to the new kernel (3.10.0-957.1.3.el7.x86_64), my system gave me few surprises. As a sys-admin, I don't want to see any surprise. 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